ORCID Profile
0000-0003-0835-7197
Current Organisations
University of Wollongong
,
Australian National University
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Publisher: Wiley
Date: 06-1981
Publisher: MDPI AG
Date: 10-03-2023
DOI: 10.3390/SOILSYSTEMS7010025
Abstract: Despite the wealth of Late Pleistocene archaeology that exists across southern Africa’s open landscape, it is routinely neglected in favour of rock shelter (re)excavation, biasing interpretation of human–environment interaction. This is compounded by the scarcity of open-air studies that use geoarchaeological methods to investigate the history and processes involved in their formation. The open-air archaeology of the Doring River Valley is an ex le of this, despite nearly a decade of dedicated study and publication. Consequently, there remains a limited and untested understanding of the valley’s formation history. This paper rectifies this by providing a sedimentary context for the surface archaeology exposed across one of the Doring River Valley’s artefact-baring localities, Uitspankraal 7 (UPK7). Characterisation, particle size, mineralogical, morphometric, and geophysical analysis of UPK7′s sand mantle resulted in the identification of four artefact-bearing sedimentary units, the aeolian and pedogenic processes involved in their formation, and their proposed order of deposition. This provides a stratigraphic, taphonomic, and environmental context against which chronometric dating and an analysis of the taphonomic, spatio-temporal, and technological composition of UPK7′s surface archaeology can be compared. This work is the first vital step towards understanding the depositional and behavioural history of a landscape, irrespective of context type.
Publisher: Elsevier BV
Date: 04-2020
Publisher: Geological Society of America
Date: 02-2011
DOI: 10.1130/G31518.1
Publisher: Geological Society of America
Date: 2007
Publisher: Schweizerbart
Date: 07-2010
Publisher: Elsevier BV
Date: 2017
Publisher: Informa UK Limited
Date: 02-1996
Publisher: Elsevier BV
Date: 11-2015
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 09-1992
Publisher: Coastal Education and Research Foundation
Date: 03-03-2016
DOI: 10.2112/SI75-007.1
Publisher: Informa UK Limited
Date: 04-1982
Publisher: Springer Science and Business Media LLC
Date: 12-10-2018
Publisher: Emerald
Date: 08-09-2020
DOI: 10.1108/AAAJ-03-2020-4457
Abstract: The purpose of this article is to track the emergence of topics and research trends in environmental accounting research by using a machine learning method for literature reviews. The article shows how the method can track the emergence of topics and research trends over time. The analysis of the emergence of topics and shifts in research trends was based on a machine learning approach that allowed the authors to identify “topic bursts” in publication data. The data set of this study contained, 2,502 records published between 1972 and 2019, both within and outside of accounting journals. The data set was assembled through a systematic keyword search of the literature. Findings indicated that research studies within accounting journals have addressed sustainability concerns in a general fashion, with a recent focus on broad topics such as corporate social responsibility (CSR) and stakeholder theory. Research studies published outside of accounting journals have focussed on more specific topics (e.g. the shift to a low-carbon or circular economy, the attainment of the sustainable development goals [SDGs], etc.) and new methodologies (e.g. accounting for ecosystem services). The method provides an approach for identifying “trending” topics within accounting and non-accounting journals and allows to identify topics and areas that could benefit from a greater exchange of ideas between accounting and non-accounting journals. The authors provide a much needed review of research on the vitally important topic of environmental accounting not only in accounting journals but also in the broader research community.
Publisher: Society for Sedimentary Geology
Date: 07-2003
DOI: 10.1306/111502730531
Publisher: Elsevier BV
Date: 04-2011
Publisher: Wiley
Date: 22-09-2021
DOI: 10.1111/ACFI.12858
Abstract: COVID‐19‐related public health measures have severely impacted the Australian higher education system (AHES). This paper examines the resilience of the AHES, particularly its past reliance on onshore international students to generate revenue that cross‐subsidises operational and research expenses. By our measure, ten universities are at risk of financial default. With a different approach on the part of the Government and university leadership, surplus monies could have contributed to building a more resilient AHES. Our findings correct widely held misconceptions about the state of the AHES and aim to provide valuable learnings to in idual universities and the sector more broadly.
Publisher: Elsevier BV
Date: 12-2016
Publisher: Informa UK Limited
Date: 04-1981
Publisher: Springer Science and Business Media LLC
Date: 03-06-2018
DOI: 10.1007/S10661-018-6720-5
Abstract: Monitoring estuarine ecological-geomorphological dynamics has become a crucial aspect of studying the impacts of climate change and worldwide infrastructure development in coastal zones. Together, these factors have changed the natural eco-geomorphic processes that affect estuarine regimes and comprehensive modelling of coastal resources can assist managers to make appropriate decisions about their sustainable use. This study has utilised Towamba estuary (southeastern NSW, Australia), to demonstrate the value and priority of modelling estuarine dynamism as a measure of the rates and consequences of eco-geomorphic changes. This research employs several geoinformatic modelling approaches over time to investigate and assess how climate change and human activities have altered this estuarine eco-geomorphic setting. Multitemporal trend/change analysis of sediment delivery, shoreline positions and land cover, determined from fieldwork and GIS analysis of remote sensing datasets, shows significant spatio-temporal changes to the elevation and areal extent of sedimentary facies in the Towamba estuary over the past 65 years. Geomorphic growth (~ 2600 m
Publisher: Elsevier BV
Date: 10-1997
DOI: 10.1016/S0048-9697(97)00199-X
Abstract: X-ray fluorescence and stable lead (Pb) isotopic analyses have been undertaken on dusts, known from microscopic investigation to contain significant quantities of industrially- and urban-derived particulate matter, present in the roof cavities of houses in the Illawarra region (N.S.W., Australia), with the objective of examining the historic record of Pb pollution. All investigated houses contained in excess of 250 micrograms g-1 Pb, with dwellings close to a copper smelter, in a large industrial complex including a major steelworks, containing higher (> 2500 micrograms g-1) Pb concentrations. The isotopic composition in the dusts, expressed here as 206Pb/204Pb, is relatively constant at 17.0, irrespective of dwelling age or distance from the industrial complex. Contamination of the dusts by Pb sourced from paint cannot explain the isotopic uniformity of the dust s les. Isotopic modelling indicates that the dusts contain Pb derived from the copper smelter, gasoline-air Pb and a minor contribution from coal-utilising sources. Lead loading was also investigated in the adjacent lagoon, which acts as a natural sink for particulate matter in the Illawarra region. Isotopic data and modelling indicate that one natural and four anthropogenic sources contribute to the Pb burden of this lagoon. The natural source consists of Permian rocks cropping out in the catchment area which have a 206Pb/204Pb of approximately 18.7. The suggested anthropogenic sources are an old disbanded base-metal (Pb) smelter (206Pb/204Pb approximately 16.2-16.3), the copper smelter (206Pb/204Pb approximately 17.9), gasoline-air derived Pb (206Pb/204Pb approximately 16.4-16.5) and industries utilising coal, for ex le the recently closed thermal coal-fired power station (206Pb/204Pb approximately 18.9). The relative contributions of the base-metal (mainly lead) smelter and gasoline-air Pb in the sediment can only be partly assessed due to the isotopic similarity of these sources. Likewise the natural background and coal source (e.g. power station) contributions can only be estimated from historical data. Age estimations for sediment cores, using 137Cs, provide some control on these assessments. Near surface sediments in the lagoon have a relatively constant 206Pb/204Pb of 17.6-17.7, irrespective of s le location. Isotopic calculations, together with records of particulate matter pollution emissions, indicate a link between the Pb in roof dusts (206Pb/204Pb approximately 17.0) and Pb contamination of the near surface (upper 20 cm) lagoonal sediments via a homogeneous, non-unique source of lead whose isotopic composition closely matches that of the dusts. Over the last 5 decades, atmospheric fallout of Pb-bearing particulate matter appears to have been the dominant pathway for addition of Pb to the lagoon and dwellings in the Illawarra region.
Publisher: Informa UK Limited
Date: 05-1969
Publisher: Informa UK Limited
Date: 21-10-2018
Publisher: Society for Sedimentary Geology
Date: 11-2007
DOI: 10.2110/JSR.2007.087
Publisher: Elsevier BV
Date: 10-2008
Publisher: Wiley
Date: 27-01-2022
DOI: 10.1002/BSE.3004
Abstract: The circular economy is argued to be a way of organising industrial systems that support resilience through decoupling economic growth from material consumption. Yet, extant research exploring the impacts of circular economy business practices on resilience is nascent, with few studies detailing if and how these practices enable firms, industries and social‐ecological systems to adapt and transform in the face of shocks and disturbances. In this article, we seek to advance research on the circular economy by proposing a research agenda that connects the circular economy to resilience at multiple levels. Based on insights from resilience theory and findings from the limited literature on the circular economy that has considered resilience to date, our research agenda focuses scholarly attention on key areas of congruence and contestation. We posit that pursuit of answers in these areas has the potential for advancing circular economy business practices capable of supporting resilience at multiple levels.
Publisher: Informa UK Limited
Date: 12-2006
Publisher: Wiley
Date: 16-12-2023
Abstract: Research interest in extreme contexts was growing before the COVID‐19 pandemic and has intensified since. The climate crisis, significant geo‐political conflict, political polarization and upheaval, and economic/financial crises that present existential challenges to organizations have all contributed to rising interest in extreme‐context research. COVID‐19 itself has generated an enormous body of research across all sub‐fields of management. However, the substantive, methodological and conceptual implications of this large volume of research remain unclear. In this introduction to the British Journal of Management COVID‐19 Online Virtual Issue, we describe and analyse COVID‐19 research so far published in the British Journal of Management . The Journal was proactive in seeing the profound implications of COVID‐19 for management research and practice, issuing an early call for contributions, and publishing several exploratory commentaries as early as July 2020. In this paper, we situate COVID‐19 research within the broader extreme‐context research, analyse contributions made so far, and build upon an extended taxonomy of extreme contexts to suggest ways for future research to generate further impactful insights.
Publisher: Wiley
Date: 02-1989
Publisher: Elsevier BV
Date: 10-1987
Publisher: Elsevier BV
Date: 02-2010
Publisher: Springer Science and Business Media LLC
Date: 2021
Abstract: Coastal environments are subject to trace metal pollution via a combination of industry and urbanised sources. The pollutants accumulate within surface sediments, especially in the quieter backwaters of estuaries. An environmental assessment of the Port Hacking estuary, southern Sydney, Australia, was undertaken using 233 surface s les. Trace metal concentrations (Ni, Cr, Cu, Zn, Pb, and As) in these s les indicated that most elements in Port Hacking were below the relevant ANZECC/ARMCANZ guideline low trigger value (ISQG-low), but a few sites exceeded this value. The low trace metal concentrations are mainly because the catchment areas have limited urban development and few discharge points. In contrast, one site in Gunnamatta Bay has Zn and Cu concentrations that exceeded the high trigger value (ISQG-high), due to moored vessels, boatyards, and stormwater outlets in this vicinity. Port Hacking is considered to be relatively unpolluted and healthy when compared with other Sydney estuaries.
Publisher: Elsevier BV
Date: 11-2015
Publisher: Elsevier BV
Date: 03-2017
Publisher: Elsevier BV
Date: 06-2021
Publisher: Wiley
Date: 20-11-2019
DOI: 10.1111/ABAC.12175
Publisher: SAGE Publications
Date: 11-2007
Abstract: A revised Holocene sea-level curve for the southeast coast of New South Wales, Australia, is presented based on a review of previously published geochronological results for fossil molluscs, organic-rich mud, mangrove roots and fixed biological indicators. It is supplemented by new radiocarbon and amino acid racemization-derived ages on fossil molluscs from transgressive sandsheet facies in back-barrier settings within shallow incised valleys along the southern coast of New South Wales. This data base has been limited to fossils with accurate descriptions of their facies associations and stratigraphic relationships to present mean sea level. Results show that sea level during the Holocene marine transgression rose to between −15 and −11 m at 9400—9000 cal. yr BP. Sea level then rose to approximately −5 m by 8500 cal. yr BP and to approximately −3.5 m between 8300 and 8000 cal. yr BP inundating shallow incised valleys resulting in the deposition of shell-rich transgressive sandsheets within shallow incised bedrock valleys. Present sea level was attained between 7900 and 7700 cal. yr BP, approximately 700—900 years earlier than previously proposed. Sea level continued to rise to between +1 and +1.5 m between 7700 and 7400 cal. yr BP, followed by a sea-level highstand that lasted until about 2000 cal. yr BP followed by a gradual fall to present. A series of minor negative and positive oscillations in relative sea level during the late-Holocene sea-level highstand appear to be superimposed over the general sea-level trend. However, the precise nature of the oscillations are difficult to quantify because of problems associated with accurately determining palaeotidal and wave regimes, climatic conditions and the antecedent morphology of the shallow marine environments during the mid Holocene.
Publisher: Wiley
Date: 21-11-2019
DOI: 10.1111/ABAC.12179
Publisher: Elsevier BV
Date: 06-2006
Publisher: Informa UK Limited
Date: 24-08-2022
Publisher: SEPM (Society for Sedimentary Geology)
Date: 2003
Publisher: Informa UK Limited
Date: 07-04-2015
Publisher: Public Library of Science (PLoS)
Date: 09-08-2018
Publisher: Elsevier BV
Date: 04-2020
Publisher: Springer Science and Business Media LLC
Date: 09-2021
Publisher: SAGE Publications
Date: 08-2016
Abstract: Natural disasters challenge a community’s resilience. Prior community resilience research has focused on the responses of public entities, such as emergency services and government agencies. However, for-profit firms are also engaged in responding to natural disasters. This article explores two aspects of how firms participate in building community resilience to natural disasters: First, the article synthesizes research on business continuity management, corporate philanthropy, and emerging evidence that firms engage in the business of disaster response into a coherent typology of for-profit firm responses to natural disasters. Second, the article draws on stakeholder theory to distinguish between firms adopting firm-centric postures (focused inwardly on firm outcomes) versus firms adopting community-centric postures (focused outwardly on stakeholders), with respect to responding to natural disasters. We theorize relationships between firm- versus community-centric postures and different community resilience outcomes. The article concludes by discussing contributions to stakeholder theory and outlines future research directions.
Publisher: Informa UK Limited
Date: 15-05-2019
Publisher: Emerald
Date: 09-12-0033
DOI: 10.1108/AAAJ-10-2021-5493
Abstract: This paper introduces the second part of a AAAJ special issue on accounting, accountability and management during the COVID-19 emergency. The authors analyse the themes that emerge from the second part of the special issue, which allows us to identify the erse accounting and accountability practices across different geographical and organisational contexts. The authors also provide an overall picture of the contributions of the special issue, with insights into avenues of future research. Building on the first part of the AAAJ special issue, the paper draws together and identifies additional emerging themes related to research into the COVID-19 pandemic and how it impacts accounting, accountability and management practices. The authors reflect on the contributions of the special issue to the interdisciplinary accounting research project. The authors identify two macro-themes and outline their contributions to the accounting literature. The first deals with the changes and dangers of accounting and accountability practices during the pandemic. The second considers accountability practices in a broader sense, including reporting, disclosure and rhetorical practices in the management of COVID-19. The paper shows the pervasive role of accounting and accountability in the unprecedented and indiscriminate health crisis of COVID-19. It highlights the important role of special issues in producing timely research that responds to unfolding events. This paper contributes to current debates on the roles of accounting and accountability during COVID-19 by drawing together the themes of the special issue and identifying future interdisciplinary accounting research on the pandemic's aftermath.
Publisher: Springer Science and Business Media LLC
Date: 22-05-2019
Publisher: SAGE Publications
Date: 05-2022
DOI: 10.1177/00076503221098911
Abstract: Business & Society’ s 60th anniversary affords an opportunity to reflect on the journal’s achievements in the context of the wider field. We analyze editorial commentaries to map the evolving mission of the journal, assess the achievement of the journal’s mission through a thematic analysis of published articles, and examine Business & Society’ s distinctiveness relative to peer journals using a machine learning approach. Our analysis highlights subtle shifts in Business & Society’ s mission and content over time, reflecting variation in the relative emphasis on scholarly quality versus policy ractice relevance, and building the journal and its academic community versus addressing issues of concern to wider society. While Business & Society’ s intended missions have been substantially and sequentially achieved, an increased emphasis on the society-business nexus and a critical approach to interdisciplinarity could further enhance Business & Society’ s leading role within business and society research and attract new generations of contributors and readers.
Publisher: Public Library of Science (PLoS)
Date: 24-11-2020
DOI: 10.1371/JOURNAL.PONE.0242283
Abstract: This article introduces Interdisciplinary Research Maps as a novel visualization technique to assist with interdisciplinary research analytics and to map common (and distinct) topics across publications from different disciplines. We detail the method for this technique which is based on entity linking and illustrate its application to a s le of articles sourced from the top business/management and environmental sciences journals. Both fields have separately been criticized for a lack of interdisciplinary research to co-create insights for tackling pressing environmental issues such as climate change. Our mapping approach provides a starting point for exploring similarities and differences in research topics across these fields. The mapping technique introduced here has broader applicability to facilitate the creation and exchange of knowledge across fields. We discuss avenues for visualization techniques to bridge the different fields by focusing on identifying common concepts to provide a basis for future analysis.
Publisher: Elsevier BV
Date: 10-2012
Publisher: Wiley
Date: 04-2006
Publisher: Coastal Education and Research Foundation
Date: 2008
DOI: 10.2112/05-0487.1
Publisher: Edward Elgar Publishing
Date: 13-08-2020
Publisher: Elsevier BV
Date: 05-2020
Publisher: Springer Science and Business Media LLC
Date: 14-05-2022
DOI: 10.1007/S10661-022-10080-1
Abstract: Recurrent dust storms represent a significant concern in Australia because of their related hazards and damages since particulate matter (PM) has harmful impacts on the environmental, health and economic sectors. The particulate matter may be released from natural sources and human activities. The major part of natural particulate matter is emitted into the air by wind erosion processes from desert and semi-desert areas at the world scale. A huge dust storm crossed over several areas of New South Wales (NSW), Australia, including the Sydney region on 21–22 November 2018 and decreased the horizontal visibility to less than 1 km for 22 h. This study examined the synoptic weather conditions, and assessed the air quality and identified the source and transport trajectory of the dust storm over Sydney using ground and satellite remote sensing data. PM10 ( 10 μm) concentrations were obtained from selected air quality monitoring sites operated by the Environmental Protection Agency in NSW. The highest hourly concentration of PM10 (578.7 μg/m 3 ) was recorded at Singleton in the Hunter Valley, while concentrations in Sydney ranged from 480 to 385 μg/m 3 , well above the standard air quality level in Australia (50 μg/m 3 per 24 h). The HYSPLIT back trajectories of air parcels suggest that the potential sources of the dust episode originated from the Lake Eyre Basin and northeast South Australia, the Mundi Mundi plains west of Broken Hill, Cobar and the grazing lands and the red sandplains in northwestern NSW. It then travelled towards the east coast. These long-range airflows transported suspended dust particles, raising air quality to hazardous levels (elevated PM10 levels) over most areas of NSW. The results from the HYSPLIT model for dust movement are confirmed by MODIS satellite images. Many areas of NSW experienced this intense dust storm due to northwest wind generated by the low-pressure systems and cold fronts over South Australia and many parts of western NSW as it moved eastward.
Publisher: Coastal Education and Research Foundation
Date: 2006
DOI: 10.2112/05A-0010.1
Publisher: Emerald
Date: 02-2018
DOI: 10.1016/J.ACCLIT.2017.05.003
Abstract: This paper analyses the use of big data techniques in auditing, and finds that the practice is not as widespread as it is in other related fields. We first introduce contemporary big data techniques to promote understanding of their potential application. Next, we review existing research on big data in accounting and finance. In addition to auditing, our analysis shows that existing research extends across three other genealogies: financial distress modelling, financial fraud modelling, and stock market prediction and quantitative modelling. Auditing is lagging behind the other research streams in the use of valuable big data techniques. A possible explanation is that auditors are reluctant to use techniques that are far ahead of those adopted by their clients, but we refute this argument. We call for more research and a greater alignment to practice. We also outline future opportunities for auditing in the context of real-time information and in collaborative platforms and peer-to-peer marketplaces.
Publisher: Wiley
Date: 02-1999
Publisher: Coastal Education and Research Foundation
Date: 10-02-2020
Publisher: Informa UK Limited
Date: 12-2007
Publisher: SAGE Publications
Date: 09-2008
Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 09-2022
Publisher: SEPM (Society for Sedimentary Geology)
Date: 2008
Publisher: Elsevier
Date: 2020
Publisher: Wiley
Date: 20-10-2021
DOI: 10.5694/MJA2.51302
Publisher: Elsevier BV
Date: 08-2014
Publisher: Public Library of Science (PLoS)
Date: 11-04-2018
Publisher: JMIR Publications Inc.
Date: 06-06-2022
DOI: 10.2196/35697
Abstract: There is increasing recognition of the need for more comprehensive surveillance data, including information on physical activity of all intensities, sedentary behavior, and sleep. However, meeting this need poses significant challenges for current surveillance systems, which are mainly reliant on self-report. The primary objective of this project is to develop and evaluate the feasibility of a sensor-based system for use in the surveillance of physical activity, sedentary behavior, and sleep (SurPASS) at a national level in Denmark. The SurPASS project involves an international, multidisciplinary team of researchers collaborating with an industrial partner. The SurPASS system consists of (1) a thigh-worn accelerometer with Bluetooth connectivity, (2) a smartphone app, (3) an integrated back end, facilitating the automated upload, analysis, storage, and provision of in idualized feedback in a manner compliant with European Union regulations on data privacy, and (4) an administrator web interface (web application) to monitor progress. The system development and evaluation will be performed in 3 phases. These phases will include gathering user input and specifications (phase 1), the iterative development, evaluation, and refinement of the system (phase 2), and the feasibility evaluation (phase 3). The project started in September 2020 and completed phase 2 in February 2022. Phase 3 began in March 2022 and results will be made available in 2023. If feasible, the SurPASS system could be a catalyst toward large-scale, sensor-based surveillance of physical activity, sedentary behavior, and sleep. It could also be adapted for cohort and interventional research, thus contributing to the generation of evidence for both interventions and public health policies and recommendations. DERR1-10.2196/35697
Publisher: MDPI AG
Date: 27-11-2017
DOI: 10.3390/JMSE5040055
Publisher: Elsevier BV
Date: 07-2008
DOI: 10.1016/J.JENVRAD.2008.01.002
Abstract: Environmental radionuclides can be employed as tracers of sediment movement and delivery to water bodies such as lakes and reservoirs. The chronologies of sediments that have accumulated in the Cordeaux reservoir in Sydney, Australia, were determined by the rate of change of (210)Pb(ex) with depth and indicate slow accretion in the reservoir. The ratio of enrichment of radionuclides in sediment cores to (210)Pb(ex) and (137)Cs concentrations in a reference soil s le within the Cordeaux catchment indicates that the dominant source of sediment in the Cordeaux reservoir is surface erosion (detachment and removal of sediment at depths less than 30 cm). However, in the Kembla Creek arm of the reservoir a mixture of sources was detected and includes sheet and rill erosion together with sub-soil contributions. Implications for the utility of these radionuclide sedimentation assessments, especially where s les are limited, are that well-constrained chronologies and sources of soil erosion are facilitated.
Publisher: Springer Science and Business Media LLC
Date: 28-01-2015
DOI: 10.1007/S10661-014-4238-Z
Abstract: The distribution of trace metals (spatial and temporal) and sedimentary fractions were investigated to identify the concentrations and sources of trace metals within Kogarah Bay, NSW, Australia. A total of 59 surface sediments and six subsurface s les from core of the sediment were collected. The contamination factor and pollution load index indices used to evaluate environmental effects of trace metals. The study area was found to be uncontaminated with Cr and Ni, moderately contaminated with As and considerably contaminated with Cu, Zn and Pb. The concentrations of Cr and Ni were below both effect range low and effect range median, while As, Cu, Zn and Pb were slightly above effect range low. The highest concentrations of these trace metals such as Cu, Zn and Pb were found in the north, northwest and southeast of the bay, close to discharge points, stormwater outlets and around boatyards and watercrafts. The spatial distributions of metals were strongly related to muddy particles and organic matter. The temporal sediments of metals declined with increased sediment depth, which reflects accumulation of trace metals since European settlement in this area. Furthermore, the source of the trace metals was found to be stormwater outlets, gasoline fumes, boatyards and other human activities.
Publisher: Cambridge University Press (CUP)
Date: 05-2013
DOI: 10.1016/J.YQRES.2013.03.002
Abstract: The distribution of marine-influenced oxygen isotope stage (OIS) 5 to OIS 1 sediments was examined in several late Quaternary boreholes from the southern Changjiang (Yangtze) delta plain, China, using different dating methods including OSL, U-series, AMS 14 C and paleomagnetism. Results demonstrate that coastal and estuarine deposition during OIS 5 and OIS 3 occurred throughout the study area. However, Holocene transgressive sediments were absent on the Taihu block. The burial depth of intertidal to subtidal sediment deposited during OIS 5e records 30–80 m subsidence caused by sediment compaction and tectonic movement since that time. However, coastal sediments formed during the late phase of OIS 3 were buried to a depth of ca. 6–15 m in the Taihu Lake area, while the burial depth increased eastward to ca. 45–60 m on the coastal plain. This phenomenon, combined with the distribution of Holocene marine strata, indicates at least 25–30 m uplift of the Taihu block since the end of OIS 3. We suggest that this uplift was mainly caused by the differential subsidence due to substantial amount of post-glacial deposition by the Changjiang and Huanghe Rivers on the continental shelf of east China marginal sea.
Publisher: GeoScienceWorld
Date: 10-2012
DOI: 10.1130/L207.1
Publisher: Informa UK Limited
Date: 06-1994
Publisher: Elsevier BV
Date: 09-2016
Publisher: Elsevier BV
Date: 07-2022
Publisher: Informa UK Limited
Date: 1973
Publisher: Elsevier BV
Date: 1993
Publisher: Wiley
Date: 07-12-2012
DOI: 10.1111/IAR.12007
Publisher: Ubiquity Press, Ltd.
Date: 24-03-2020
DOI: 10.5334/OQ.77
Publisher: SAGE Publications
Date: 08-2008
Abstract: A distinct lens of marine sand, up to 90 cm thick, confined vertically by peat, is found in the upper fill of a closed freshwater back-barrier lagoon on the southeast Australian coast. Coring of the deposit suggests it extends continuously up to 600 m inland and tapers landward rising to ~1.6 m above principle datum. In places the sand is overlain by accumulations of organic-rich silt that contain charophytes, indicating re-establishment of lagoon conditions. Hypotheses considered for the deposition of the sandsheet are higher Holocene sea level, storms and tsunami. Ground-penetrating radar transects of the seaward dune system suggest a penecontemporaneous erosional contact between a series of truncated pre-event dunes and several small overlying post-event dunes. Dating the sandsheet was problematic but it is confined to the last 800 years. The young age combined with a lack of associated beach deposits and evidence of wave scouring suggest that a higher sea-level hypothesis is unlikely. This sand lens is attributed to a large-scale washover event from the southeast. Based on comparisons with modern storm deposits from the same coast and sedimentological diagnostic criteria derived from studies of modern storm- and tsunami-deposited sandsheets, it is concluded that this sand deposit is the product of a short-lived, large-scale overwash event attributed to a late-Holocene tsunami.
Publisher: Elsevier BV
Date: 12-2001
Publisher: Informa UK Limited
Date: 12-1997
Publisher: American Institute of Mathematical Sciences (AIMS)
Date: 2018
Publisher: Elsevier BV
Date: 05-2008
Publisher: Informa UK Limited
Date: 1976
Publisher: Emerald
Date: 02-07-2018
Abstract: This paper aims to examine the complex issue of the social cost of carbon. The authors review the existing literature and the strengths and deficiencies of existing approaches. They introduce a simple methodology that estimates the amount of “legal looting” in the fossil fuel industry as an alternative approach to calculate an unpaid social cost of carbon. The “looting amount” can be defined as society’s failure to charge fossil fuel firms for the damage that their activities cause represents an implied subsidy. The methodology used in this paper combines decisions in the form of policymakers setting carbon taxes and rational investors investing in carbon emission markets. The authors show that the unpaid social cost of carbon in the fossil fuel industry was US$12.7tn over 1995-2013, but may be as high as US$115.5tn. Over the same period, the sum of industry profits, emission trading scheme carbon permit and carbon tax revenue totalled US$7tn, indicating the industry would not be viable if it was made to pay for damages to society.
Publisher: Elsevier BV
Date: 2006
Publisher: Informa UK Limited
Date: 06-1972
Publisher: Informa UK Limited
Date: 09-1988
Publisher: Informa UK Limited
Date: 1979
Publisher: Springer Science and Business Media LLC
Date: 06-2019
Publisher: Wiley
Date: 10-2003
Publisher: Springer Science and Business Media LLC
Date: 21-04-2004
Publisher: Elsevier BV
Date: 1982
Publisher: Informa UK Limited
Date: 12-2008
Publisher: Springer Science and Business Media LLC
Date: 18-09-2016
Publisher: Wiley
Date: 04-11-2020
DOI: 10.1111/ACFI.12714
Publisher: SAGE Publications
Date: 23-09-2019
Abstract: Management scholarship is increasingly paying attention to “grand challenges” such as climate and demographic changes, sociopolitical uncertainty, poverty alleviation, and global health improvement. Drawing upon a review of grand challenges research, we highlight the lack of a coherent conceptualization of a “grand challenge” and examine the ersity of the conceptual, policy, and empirical research. We problematize the failure in current research to distinguish between qualitatively different types of grand challenges—in our view, the resolution of different challenges calls for distinct research, policy, and practice approaches. We propose a novel framework that encompasses four distinct forms of grand challenge, situate the existing empirical literature within our framework, describe how the contributions to our special issue advance grand challenges research, and explore implications for future management research that responds to the imperatives of grand challenges. JEL Classification: D81, G01, M14, I18, Q54, Q55, Q56, Q57
Publisher: Elsevier BV
Date: 10-2022
Publisher: Springer Science and Business Media LLC
Date: 09-2020
Publisher: SAGE Publications
Date: 03-10-2020
Abstract: Literature reviews play an essential role in academic research to gather existing knowledge and to examine the state of a field. However, researchers in business, management and related disciplines continue to rely on cursory and narrative reviews that lack a systematic investigation of the literature. This article details methodological steps for conducting literature reviews in a replicable and scientific fashion. This article also discusses bibliographic mapping approaches to visualise bibliometric information and findings from a systematic literature review. We hope that the insights provided in this article are useful for researchers at different stages of their careers – ranging from doctoral students who wish to assemble a broad overview of their field of interest to guide their work, to senior researchers who wish to publish authoritative literature reviews. JEL Classification: C18, C80, C88, M10, M20
Publisher: SAGE Publications
Date: 12-2017
Abstract: Climate change will pose considerable risk to organisations in the 21st century. However, organisational adaptation to climate change has not yet received much attention in the management literature. Drawing on strategic choice theory, we put forward a model proposing that environmental attitudes and climate change knowledge are antecedents of how important adaptation is perceived to be by organisational decision-makers and that the perceived risk towards climate change acts as a mediator in this relationship. We tested the model with responses from 101 managers in the Australian energy industry. Findings of the study show that both environmental attitudes and climate change knowledge have a significantly positive effect on the perceived importance of climate change adaptation and that this relationship is mediated by risk perception. The study highlights the need to draw climate knowledge to the attention of executives and discusses avenues for future research, including the extension of the findings to other industries and settings.
Publisher: Elsevier BV
Date: 2017
Publisher: Springer Science and Business Media LLC
Date: 29-11-2014
DOI: 10.1007/S00128-014-1434-Z
Abstract: The disposal of untreated urban and industrial wastewater has a deleterious effect on both the water and sediment quality of Oyster Bay located in south Sydney, Australia. The present investigation was undertaken to evaluate the potential pollution of marine sediments in Oyster Bay. The results of metals were compared with adverse biological effect values effect range low (ERL) and effect range median (ERM). Spatial distribution of trace metals was estimated by applying geographic information system. The results indicated that the sediments were polluted with Cu, Zn, As and Pb, which exceeded ERL levels. However, these metals were still below ERM values, and other metals Cr and Ni were below ERL. Moreover, the highest concentrations of metals were around discharge points and in the inner bay. Further, trace metals could be attributed to human activities within the bay as they declined in concentrations with increasing sediment depth.
Publisher: Informa UK Limited
Date: 03-10-2017
Publisher: Elsevier BV
Date: 06-2022
Publisher: CSIRO Publishing
Date: 1994
DOI: 10.1071/MF9940977
Abstract: The distribution of anthropogenically derived ash and metal contents of Lake Illawarra bottom sediments have shown that elevated concentrations of trace metals, particularly Zn, are linked to ash concentrations. The highest concentrations of total metals (up to 10 times the locally defined background) were recorded from Griffins Bay, adjacent to the Port Kembla industrial complex. Other sites investigated exhibited only slight trace metal enrichment in near-surface sediments, typically 1.4 to 2 times the background. Analytical data from inductively coupled plasma mass spectrometry (ICPMS) indicate that the ratio of EDTA-extractable ratio:total metal present in the sediment generally decreases in the order Pb, Zn and Cu. Lake sedimentation rates, calculated on the basis of metal and ash depth profiles, were found to lie in the range 6.9 to 16 mm year-1 and represent the most serious long-term environmental problem in the Illawarra region.
Publisher: Elsevier BV
Date: 03-2019
Publisher: Society for Sedimentary Geology
Date: 1972
Publisher: Springer Science and Business Media LLC
Date: 07-04-2020
Publisher: Wiley
Date: 13-11-2019
DOI: 10.5694/MJA2.50405
Abstract: The MJA-Lancet Countdown on health and climate change was established in 2017 and produced its first Australian national assessment in 2018. It examined 41 indicators across five broad domains: climate change impacts, exposures and vulnerability adaptation, planning and resilience for health mitigation actions and health co-benefits economics and finance and public and political engagement. It found that, overall, Australia is vulnerable to the impacts of climate change on health, and that policy inaction in this regard threatens Australian lives. In this report we present the 2019 update. We track progress on health and climate change in Australia across the same five broad domains and many of the same indicators as in 2018. A number of new indicators are introduced this year, including one focused on wildfire exposure, and another on engagement in health and climate change in the corporate sector. Several of the previously reported indicators are not included this year, either due to their discontinuation by the parent project, the Lancet Countdown, or because insufficient new data were available for us to meaningfully provide an update to the indicator. In a year marked by an Australian federal election in which climate change featured prominently, we find mixed progress on health and climate change in this country. There has been progress in renewable energy generation, including substantial employment increases in this sector. There has also been some progress at state and local government level. However, there continues to be no engagement on health and climate change in the Australian federal Parliament, and Australia performs poorly across many of the indicators in comparison to other developed countries for ex le, it is one of the world's largest net exporters of coal and its electricity generation from low carbon sources is low. We also find significantly increasing exposure of Australians to heatwaves and, in most states and territories, continuing elevated suicide rates at higher temperatures. We conclude that Australia remains at significant risk of declines in health due to climate change, and that substantial and sustained national action is urgently required in order to prevent this.
Publisher: Elsevier BV
Date: 02-2016
Publisher: Elsevier BV
Date: 06-2008
Publisher: Springer Science and Business Media LLC
Date: 23-07-2020
Publisher: Wiley
Date: 02-2018
DOI: 10.1111/ACFI.12321
Publisher: Association for Information Systems
Date: 2022
DOI: 10.17705/1CAIS.05036
Publisher: Elsevier BV
Date: 11-2004
Publisher: Wiley
Date: 04-12-2021
Abstract: The extraordinary electronic, optical, and mechanical characteristics of 2D materials make them promising candidates for optoelectronics, specifically in infrared (IR) detectors owing to their flexible composition and tunable optoelectronic properties. This review presents the recent progress in IR detectors composed of 2D materials and their hybrid structures, including graphene, black phosphorous, transition metal dichalcogenides, halide perovskite as well as other new layered materials and their heterostructures. The focus is on the short‐wave, mid‐wave, and long‐wave infrared regimes, which pose a grand challenge for rational materials and device designs. The dependence of the device performance on the optical and electronic properties of 2D materials is extensively discussed, aiming to present the general strategies for designing optoelectronic devices with optimal performance. Furthermore, the recent results on 2D material‐based heterostructures are presented with an emphasis on the relationship between band alignment, charge transfer, and IR photodetection. Finally, a summary is given as well as the discussion of existing challenges and future directions.
Publisher: Wiley
Date: 16-07-2018
DOI: 10.1002/ESP.4459
Publisher: Coastal Education and Research Foundation
Date: 09-2005
DOI: 10.2112/03-0110.1
Publisher: CSIRO Publishing
Date: 1995
DOI: 10.1071/MF9951181
Abstract: Sublittoral kelp forests, such as those occupying the wave-dominated shallow marine rocky substrata around Windang Island, New South Wales, provide an important habitat for ostracods. This is reflected in the erse biocoenotic assemblage (69 species, including one new genus and three new species) and populations of juveniles recorded from this area. The thanatocoenotic assemblage contributes a further 37 ostracod species. The total assemblage is more erse than, and has only 17 species in common with, the previously documented intertidal biocoenotic assemblages around Windang Island. The distribution of the more abundant ostracod species reflects the energy levels within the environment, with a greater proportion of smooth-shelled forms occurring in the higher-energy zones at shallow depths. Most of the thanatocoenose population represents species moved up from the deeper shelf or into the region from the adjacent tidal channel into Lake Illawarra, rather than species from the intertidal region around Windang Island.
Publisher: Elsevier BV
Date: 07-2010
Publisher: CSIRO Publishing
Date: 1987
DOI: 10.1071/MF9870795
Abstract: Major controls of the distribution pattern and abundance of living ostracod populations in Lake Illawarra, a coastal lagoon south of Wollongong, New South Wales, are salinity and the benthic flora. The biocenotic ostracod assemblage from the intertidal zone around Windang Island is a typical, erse, upper sublittoral, open ocean fauna. The lake entrance channel, which is a transport corridor for marine sediments into the lagoon, has a restricted ostracod biocenose (14 species) but contains an additional 72 species in the erse thanatocenose resulting from the mixing of estuarine and marine species. Within the lagoon, the benthic flora influences the ostracod distribution pattern with the most erse assemblage (13 species) occurring in areas covered by seagrasses. Seagrass distribution is, in turn, controlled by water depth, circulation, turbidity and substrate. Estuarine ostracods associated with the seagrass beds can tolerate florally induced fluctuations in pH from 7 to 10 and in dissolved oxygen from 1 mg l-1 to 14 mg l-1. In the deeper parts of the lagoon with a predominantly mud substrate, the ostracod assemblage is dominated by Osticythere reticulata. Most s les retrieved from the most polluted part of the lagoon contained no ostracods. A total of 90 ostracod species and subspecies belonging to 50 genera has been identified nine species: Cytheralison cosmetics, Callistocythere janiceburrowsae, Callistocythere windangensis, Neocytherideis anneclarkeae, Actinocythereis robustus, Bradleya rectangulata, Procythereis jonesi, Hemicytherura windangensis and Cytheropteron wrighti and one subspecies, Callistocythere dorsotuberculata paucicostata, are described as new to science.
Publisher: MDPI AG
Date: 15-09-2021
DOI: 10.3390/JMSE9091012
Abstract: This study utilizes lithofacies characteristics, petrographic, XRD, and stable isotope data of Al-Mejarma beachrocks, Red Sea, Saudi Arabia, to interpret its depositional setting, origin of cement, and coastal evolution. The beachrock is 1.15 m thick, medium to very coarse-grained sandstone with scattered granules. It shows massive to graded bedding, horizontal, ripple, and shore parallel to slightly oblique planar cross-laminations, with a remarkable absence of bioturbation. It was deposited by shore-parallel longshore currents in a relatively high-energy beach environment. The framework comprises quartz, feldspars, and lithic fragments admixed with biogenic remains of algae, mollusca, foraminifera, corals, and echinoids. They are cemented by high magnesium calcite in the form of isopachous rims and pore-filling blades, and rarely, as a meniscus bridge. The mean values of δ18OVPDB and δ13CVPDB are 0.44‰ and 3.65‰, respectively, suggesting a seawater origin for the cement. The framework composition, facies geometry, and association with back-barrier lagoon impose a deposition as a shoreface-beach barrier through two stages corresponding to the middle and late Holocene. The first stage attests landward migrating sediment accumulation and rapid marine cementation. The sediments stored offshore during the early and middle Holocene humid periods migrated landward from offshore and alongshore by onshore waves and longshore drift during the middle and late Holocene sea-level highstand. They were cemented to form beachrock and subsequently emerged as the late Holocene sea-level fell.
Publisher: Cambridge University Press (CUP)
Date: 24-01-2014
DOI: 10.1017/S0016756813001064
Abstract: The red-bed deposits in northern Iraq are situated in an active foreland basin adjacent to the Zagros Orogenic Belt, bound to the north by the Iranian plate thrust over the edge of the Arabian plate. The red-bed successions are composed of alternating red and brown silty mudstones, purplish red calcareous siltstone, fine- to coarse-grained pebbly sandstone and conglomerate. The red beds in the current study can be ided into four parts showing a trend of upward coarsening with fine-grained deposits at the top. A detailed petrographic study was carried out on the sandstone units. The clastic rocks consist mainly of calcite cemented litharenite with rock fragments (volcanic, metamorphic and sedimentary), quartz and minor feldspar. The petrographic components reflect the tectonic system in the source area, laterally ranging from a mixed orogenic and magmatic arc in Mawat–Chwarta area to recycled orogenic material rich in sedimentary rock fragments in the Qandel area. The Cretaceous–Palaeogene foreland basin of northern Iraq formed to the southwest of the Zagros Suture Zone and the Sanandaj–Sirjan Zone of western Iran. During Palaeogene time deposition of the red beds was caused by renewed shortening in the thrust sheets overlying the Arabian margin with uplift of radiolarites (Qulqula Formation), resulting in an influx of radiolarian debris in addition to continuing ophiolitic detritus. Mixed sources, including metamorphic, volcanic and sedimentary terranes, were present during deposition of the upper part of the red beds.
Publisher: Elsevier BV
Date: 04-2003
Publisher: Informa UK Limited
Date: 2002
Publisher: Elsevier BV
Date: 10-2010
Publisher: Elsevier BV
Date: 12-2016
Publisher: Elsevier BV
Date: 06-2017
Publisher: Elsevier BV
Date: 12-2020
Publisher: Wiley
Date: 1996
DOI: 10.1111/J.1751-0813.1996.TB09952.X
Abstract: Products no longer exist simply as carriers of useful functions, but more and more consumers are beginning to pay attention to the spiritual aspects of the feelings brought by products. This paper brings machine learning algorithms to the discipline of industrial design and proposes a method to evaluate the design of product shapes using a multilayer perceptron genetic algorithm neural network (GA-MLP-NN) algorithm, quantifying the product shape, using computer-aided design technology to achieve shape optimization, shape, and color scheme generation, and using interactive feedback with users to finally generate a product shape with market demand. In this paper, we use the combinatorial innovation method to arrange and combine the detail elements in the solution library to generate the modeling solution, combine the multilayer perceptron genetic algorithm neural network algorithm with product modeling, and establish the interactive genetic modeling system for the product, use this system to design the product modeling solution, and finally get the product modeling solution satisfied by the target users using the multilayer perceptron genetic algorithm neural network method to evaluate the product modeling items. The mapping relationship model between morphological feature space and imagery cognitive space was constructed based on multiple linear regression equations, and the multiple regression model for each affective dimension was ideal. The results show that the model performance is reliable. The weights are calculated, and the appropriate people are selected to score and calculate the modeling scheme, and finally, the satisfactory product modeling scheme is obtained.
Publisher: SAGE Publications
Date: 22-03-2019
Abstract: This article examines the relationships between disaster type and firms’ disaster responses. We draw on a unique dataset of 2,164 press releases related to the occurrence of 206 natural disasters (hurricanes, flooding, tornadoes, and wildfires) over a 10-year period (2005-2014) to analyze how firm responses are shaped by the type of disaster it faces. Firms play an increasingly important role in disaster response. We find that firms engage in more anticipatory responses when the type of disaster a firm faces exhibits even impact dispersion and high expected recurrence, and provides substantial warning. Our study draws a relationship between physical geography, disaster type, and more anticipatory firm responses which can improve how firms and communities respond to the risks posed by different types of natural disasters. The article concludes by outlining an agenda for future research on firm responses to natural disasters.
Publisher: Elsevier BV
Date: 07-2011
Publisher: Wiley
Date: 20-10-2017
DOI: 10.1002/WCC.498
Publisher: WIT Press
Date: 04-06-2013
DOI: 10.2495/WRM150311
Publisher: Emerald
Date: 03-02-2022
Abstract: This paper aims to examine the state of research on environmental, social and governance (ESG) performance in the context of multinational business research. This paper discusses research progress as well as various issues and complexities associated with using ESG ratings in cross-country studies and for assessing the performance of multinational enterprises (MNE) and emerging market multinationals (EMNEs). The paper identifies emerging literature that focuses on tracking the development and uptake of ESG ratings in the international context. It discusses three emerging research streams: Research examining the ESG-financial performance relationship in emerging markets, research tracking the ESG performance of multinationals in the various countries and regions they are operating, and frameworks for assessing ESG-related risks on a country level. While the emerging body of work adds an important dimension to the identification and awareness of ESG issues globally, numerous unresolved issues become evident. ESG frameworks have been built to assess corporate sustainability as it relates to firms in their “home” countries (typically with a focus on developed countries), with limited applicability and transferability to emerging markets. International firm activities are often not captured in detail and not comprehensively mapped across firm subsidiaries and a firm’s corporate supply chain where ESG issues are prone to happen, and ESG scores do not comprehensively integrate views and voices from various local stakeholders that are impacted by firm activities, particularly indigenous communities. Research on ESG ratings in the context of multinational business research is generally sparse and fragmented, thus creating opportunities for future research to expand on existing and emerging findings. The paper creates awareness of issues to consider when using ESG ratings in cross-country studies and for assessing the ESG performance of MNEs and EMNEs: ESG scores can be subject to bias and are not weighted by materiality, which can be misleading for portfolio construction and performance measurement purposes. Managers need to be aware that ESG scores are often not capturing ESG issues occurring in supply chains and ESG issues affecting local communities. This study enriches the understanding of ESG in the context of multinational business research practice.
Publisher: AMPCo
Date: 02-12-2020
DOI: 10.5694/MJA2.50869
Publisher: Informa UK Limited
Date: 31-08-2023
Publisher: JMIR Publications Inc.
Date: 15-12-2021
Abstract: here is increasing recognition of the need for more comprehensive surveillance data, including information on physical activity of all intensities, sedentary behavior, and sleep. However, meeting this need poses significant challenges for current surveillance systems, which are mainly reliant on self-report. he primary objective of this project is to develop and evaluate the feasibility of a sensor-based system for use in the surveillance of physical activity, sedentary behavior, and sleep (SurPASS) at a national level in Denmark. he SurPASS project involves an international, multidisciplinary team of researchers collaborating with an industrial partner. The SurPASS system consists of (1) a thigh-worn accelerometer with Bluetooth connectivity, (2) a smartphone app, (3) an integrated back end, facilitating the automated upload, analysis, storage, and provision of in idualized feedback in a manner compliant with European Union regulations on data privacy, and (4) an administrator web interface (web application) to monitor progress. The system development and evaluation will be performed in 3 phases. These phases will include gathering user input and specifications (phase 1), the iterative development, evaluation, and refinement of the system (phase 2), and the feasibility evaluation (phase 3). he project started in September 2020 and completed phase 2 in February 2022. Phase 3 began in March 2022 and results will be made available in 2023. f feasible, the SurPASS system could be a catalyst toward large-scale, sensor-based surveillance of physical activity, sedentary behavior, and sleep. It could also be adapted for cohort and interventional research, thus contributing to the generation of evidence for both interventions and public health policies and recommendations. ERR1-10.2196/35697
Publisher: Informa UK Limited
Date: 03-1984
Publisher: Elsevier BV
Date: 09-2005
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 09-2016
Publisher: Wiley
Date: 10-04-2017
DOI: 10.1111/ABAC.12107
Publisher: Springer International Publishing
Date: 2022
Publisher: Wiley
Date: 14-03-2022
DOI: 10.1111/SED.12980
Abstract: Extensive research into the evolution of wave‐dominated estuaries has been documented since the 1960s. However, there has only been limited research on the prograding bay‐head deltas that are the primary drivers for the rate and stage of estuary evolution. This paper presents the findings of a high‐resolution spatial study into the evolution of the Macquarie Rivulet bayhead delta in the Lake Illawarra barrier estuary. The delta’s evolution has been established based on sedimentological analysis of 74 cores, two 14 C ages and 45 amino acid racemization ages. This study intersected two Pleistocene and 10 Holocene sedimentary facies associations representing both the retrogradational and progradational phases of delta development. The distribution of bayhead delta facies associations in shallow barrier estuaries is initially controlled by the antecedent morphology, but, in contrast to deeper estuaries, this influence decreases as sedimentation proceeds. Changing relative sea level also has a major control on facies distribution with transgressive facies deposited as relative sea‐level rises being replaced by prograding deltaic facies during the highstand and subsequent minor relative sea‐level fall. Fluvial sediment supply and river flood events affect the rate of delta progradation, and produce low and high flow sediment deposits within the overall deltaic sequence. The low tidal flux in barrier estuaries, the muddy cohesive nature of the sediments and the prevalence of bioturbation means that primary sedimentary structures are rarely preserved in these bayhead delta facies. The depositional model of bayhead delta evolution shown by the Macquarie Rivulet delta would be widely applicable to other similar barrier estuary settings.
Publisher: Elsevier BV
Date: 06-2002
Publisher: Informa UK Limited
Date: 06-1972
Publisher: Springer Science and Business Media LLC
Date: 18-12-2016
DOI: 10.1007/S00244-016-0343-Z
Abstract: Measurement of elevated trace elements is an important component of environmental assessment and management of estuarine marine sediments in systems adjacent to concentrated human activity. The present study surveys the estuarine sediments in selected tributary bays, creeks, and the upper segments of the Georges River system, NSW, Australia, which flows into the Tasman Sea through Botany Bay. A total of 146 surface sediment s les were analysed by X-ray fluorescence. Potential pollution of sediments was evaluated using potential load index, modified degree of contamination, and potential ecological risk index. The spatial distribution of trace elements varies between sites. Variable sources of contamination, including runoff from catchment areas, and emissions from watercraft and boatyards are contributing sources. Bay morphologies and their interactions with catchment and tidal flows play significant roles in the distribution of trace elements. The greatest concentration of trace elements occurs around discharge points and in the inner parts of bays that have high percentages of mud particles and organic matter. The lowest contamination by trace elements was found in sandy sediments along the shoreline and edges of the bays. Trace element distributions decline in concentration in residential-free areas and reach background levels in deeper sediment cores. The concentrations of trace elements were controlled by discharge points from the catchment area, marine boat activities, bay morphology, and sediment types (sand, silt, and clay). The highest pollutant concentrations are the result of past legal, but uncontrolled, discharge of waste from manufacturing into Salt Pan Creek.
Publisher: Wiley
Date: 10-02-2020
DOI: 10.1111/ACFI.12599
Publisher: Elsevier BV
Date: 09-2019
Publisher: Elsevier BV
Date: 09-2015
Publisher: Elsevier BV
Date: 09-2020
Publisher: Springer Science and Business Media LLC
Date: 05-11-2011
Publisher: Elsevier BV
Date: 05-2022
Publisher: American Geophysical Union (AGU)
Date: 08-2010
DOI: 10.1029/2010GL044067
Publisher: Informa UK Limited
Date: 09-1990
Publisher: Academy of Management
Date: 11-2020
Publisher: Elsevier BV
Date: 02-2019
Publisher: Coastal Education and Research Foundation
Date: 07-2005
DOI: 10.2112/04-0177.1
Publisher: Society for Sedimentary Geology
Date: 1983
Publisher: Geological Society of America
Date: 1984
Publisher: Informa UK Limited
Date: 2018
Publisher: Society for Sedimentary Geology
Date: 1987
Publisher: Elsevier BV
Date: 2006
Publisher: Elsevier
Date: 2020
Publisher: Informa UK Limited
Date: 1981
Publisher: International Journal of Geomate
Date: 2014
Publisher: Informa UK Limited
Date: 19-06-2022
Publisher: Society of Exploration Geophysicists
Date: 05-2018
Abstract: Recently, the rift-related successions in the Eocene Huizhou (HZ) Depression have been considered crucial intervals for hydrocarbon exploration in the Pearl River Mouth Basin, China. However, the facies delineation and sandstone distribution are poorly understood due to the limited well data. Our study area is the HZ25 Block in the HZ Depression, which consists of a typical overlapped synthetic transfer zone connecting the HZ26 and XJ30 Sags. Integrated analysis of seismic and logging data indicates that the Eocene Wenchang Formation can be sub ided into four third-order sequences (SQ1–4). Well-based observations reveal that the braided deltaic system is mainly characterized by distributary channels, subaqueous distributary channels, mouth bars, and sheet-sand deposits. The sandstone isopach map acquired by seismic inversion indicates that the sandstone could be 340 m thick in the SQ2 but sharply decreases in the SQ3 in the transfer zone area. Stratal slices make it possible to delineate the facies maps by extrapolating the well observations to the entire 3D seismic survey it is suggested that the SQ2 deltaic package largely comprises braided delta plain (distributary channels) and front deposits (subaqueous distributary channels and mouth bar) with a broad distribution of [Formula: see text], whereas the SQ3 deltaic package is dominated by delta-front deposits only [Formula: see text] in extent. This study suggests that small-scale fan-delta deposits are confined to the central part of the boundary fault, whereas the transfer zone captures large-scale braided delta sediments with a long transportation distance up to 8 km. The sandstones developed in the northwestern part of the transfer zone within the SQ2 sequence are expected to form potential hydrocarbon reservoirs for future oil exploration. Furthermore, this study may have implications for reservoir prediction and hydrocarbon exploration in other areas lacking well data, such as the HZ Depression.
Publisher: Cambridge University Press (CUP)
Date: 05-1991
DOI: 10.1016/0033-5894(91)90050-F
Abstract: Thermoluminescence (TL) age determinations of alluvial sediments in the tropics are evaluated by comparison with U/Th age determinations of pedogenic accumulations in the alluvium of the lower Gilbert River, a large fan delta in the wet-dry tropics of northern Queensland, Australia. This study extends U/Th dating by applying it not only to calcretes, but also to Fe/Mn oxyhydroxide/oxide accumulations. While a direct correlation cannot be made between U/Th dates from secondary minerals and TL dates from the host sediments, both sets of data show broad consistency. In addition to providing a minima for acceptable TL ages, U/Th dates are useful for determining the chronology of pedogenesis/diagenesis. They show that calcretes and ferricretes have formed under similar climatic conditions in the wet-dry tropics of northern Australia during the late pleistocene. Beneath about 5–12 m the Gilbert fan delta consists of an extensive sand body older than 85,000 yr and probably about 120,000 yr in age, representative of a period of major fluvial activity not repeated since this time. Above are muds and fine sandy muds that extend uninterrupted to the present surface except in the downstream fan where they are bisected by a thin unit of medium sand that TL dates at 40,000–50,000 yr B.P. A system of sandy distributary channels over the fan surface represents an early Holocene fluvial phase probably more active than at present.
Publisher: Elsevier BV
Date: 09-2019
Publisher: AMPCo
Date: 29-11-2018
DOI: 10.5694/MJA18.00789
Abstract: Climate plays an important role in human health and it is well established that climate change can have very significant impacts in this regard. In partnership with The Lancet and the MJA, we present the inaugural Australian Countdown assessment of progress on climate change and health. This comprehensive assessment examines 41 indicators across five broad sections: climate change impacts, exposures and vulnerability adaptation, planning and resilience for health mitigation actions and health co-benefits economics and finance and public and political engagement. These indicators and the methods used for each are largely consistent with those of the Lancet Countdown global assessment published in October 2017, but with an Australian focus. Significant developments include the addition of a new indicator on mental health. Overall, we find that Australia is vulnerable to the impacts of climate change on health, and that policy inaction in this regard threatens Australian lives. In a number of respects, Australia has gone backwards and now lags behind other high income countries such as Germany and the United Kingdom. Ex les include the persistence of a very high carbon-intensive energy system in Australia, and its slow transition to renewables and low carbon electricity generation. However, we also find some ex les of good progress, such as heatwave response planning. Given the overall poor state of progress on climate change and health in Australia, this country now has an enormous opportunity to take action and protect human health and lives. Australia has the technical knowhow and intellect to do this, and our annual updates of this assessment will track Australia's engagement with and progress on this vitally important issue.
Publisher: Elsevier BV
Date: 1987
Publisher: Elsevier BV
Date: 03-1993
Publisher: University of Baghdad College of Science
Date: 28-11-2020
DOI: 10.24996/IJS.2020.61.11.23
Abstract: The present work is conducted on the Paleozoic (Ordovician) Khabour and the (Silurian) Akkas shales in the Akkas-1 well of western Iraq. The study is aiming to determine the implications of clay mineral transformation, organic mineral distribution and maturity of hydrocarbon generation, using X-ray diffraction (XRD), scanning electron microscopy (SEM) in addition to organic matter concentrations. In the shale of the Khabour Formation, amorphous organic matter is common and includes various Tasmanite-type organic matter, vitrinite, inertinite, and bituminite. The main clay minerals observed include illite, chlorite, kaolinite, in addition to mixed-layer illite-smectite and rare smectite. In Silurian shale, high content of organic matter is recorded in addition to abundant vitrinite and low content of grainy organic matter (Tasmanites) and pyrite. Illite and kaolinite are commonly found in addition to chlorite and illite-smectite clay minerals. Conversion of smectite to mixed-layer illite-smectite (I-S) and an increase in vitrinite reflectance are commonly observed below 2500 m depth in the studied formations, which coincides with oil and gas generation. These results could be used as an indication of higher maturity and hydrocarbon generation in the deeply buried shale of the Khabour and Akkas formations in western Iraq.
Publisher: WIT Press
Date: 22-05-2018
DOI: 10.2495/WP180241
Publisher: Elsevier BV
Date: 07-2010
Publisher: Elsevier BV
Date: 08-2019
Publisher: Geological Society of America
Date: 03-2015
DOI: 10.1130/G36346.1
Publisher: Springer Science and Business Media LLC
Date: 15-02-2011
Publisher: Springer Science and Business Media LLC
Date: 24-04-2020
Publisher: Springer Science and Business Media LLC
Date: 09-1995
DOI: 10.1007/BF00768326
Publisher: Elsevier BV
Date: 2015
Publisher: MDPI AG
Date: 03-11-2022
DOI: 10.3390/RS14215552
Abstract: Smoke aerosol dispersion and transport have a significant impact on air quality levels and can be examined by environmental monitoring and modelling techniques. The purpose of this study is to determine the characteristics of the smoke aerosols and the level of air quality during November and December 2019 under the influence of extensive bushfires in the Sydney area, New South Wales (NSW), Australia. To achieve this goal, air quality and meteorological data were analysed in combination with remote sensing satellite measurements. Meteorological and air quality data were obtained from the Bureau of Meteorology (BOM) and Environmental Protection Agency monitoring sites in NSW. In Richmond the daily maximum average hourly concentration of particulate matter (PM10) was 848.9 μg/m3 at 07:00 UTC on 26 November 2019 and 785 μg/m3 at 07:00 UTC on 12 December 2019. On 10 December 2019, the highest PM10 recorded in the Sydney region was 961.5 μg/m3 in St Marys at 01:00 UTC, while the highest PM2.5 concentration was 714.6 μg/m3 in Oakdale in southwest Sydney at 18:00 UTC. These values all decreased again to the standard level ( μg/m3) in a few days. The potential sources of smoke aerosols originated from bushfires to the northwest of Sydney (Blue Mountains) as well as from southwest and northwest NSW. The smoke plumes were revealed by the combined AOD values from Aqua and Terra sensors on the MODIS satellite. In each case, the smoke travelled towards the east coast of Australia and out over the Pacific Ocean. The NAAPS model displays the existence of smoke at ground level, while the CALIPSO satellite data showed that the plumes extended 14 km up into the stratosphere layer. Backward trajectories obtained from the HYSPLIT model agree well with the movement of smoke plumes observed in the MODIS satellite images.
Publisher: Public Library of Science (PLoS)
Date: 17-07-2019
Publisher: Wiley
Date: 27-05-2011
Publisher: Emerald
Date: 05-11-2018
Publisher: Elsevier BV
Date: 02-2022
Publisher: Elsevier BV
Date: 04-2016
Publisher: Elsevier BV
Date: 10-2012
Publisher: Elsevier BV
Date: 12-2007
Publisher: Emerald
Date: 17-09-2207
Abstract: The paper aims to examine the conditions under which disaster entrepreneurship contributes to community-level resilience. The authors define disaster entrepreneurship as attempts by the private sector to create or maintain value during and in the immediate aftermath of a natural disaster by taking advantage of business opportunities and providing goods and services required by community stakeholders. This paper builds a typology of disaster entrepreneurial responses by drawing on the dimensions of structural expansion and role change. The authors use illustrative case ex les to conceptualize how these responses improve community resilience by filling critical resource voids in the aftermath of natural disasters. The typology identifies four different disaster entrepreneurship approaches: entrepreneurial business continuity, scaling of organizational response through activating latent structures, improvising and emergence. The authors formulate proposition regarding how each of the approaches is related to community-level resilience. While disaster entrepreneurship can offer for-profit opportunities for engaging in community-wide disaster response and recovery efforts, firms should carefully consider the financial, legal, reputational and organizational implications of disaster entrepreneurship. Communities should consider how best to harness disaster entrepreneurship in designing their disaster response strategies. This research offers a novel typology to explore the role that for-profit firms play in disaster contexts and adds to prior research which has mostly focused on government agencies, non-governmental organizations and emergency personnel.
Publisher: Frontiers Media SA
Date: 25-03-2022
DOI: 10.3389/FMARS.2022.843758
Abstract: Contemporary foraminiferal sediment s les were collected from the intertidal sabkha of Al-Kharrar Lagoon, Saudi Arabia, to study the vertical distribution of foraminifers and, based on a modern training set, their potential to develop a predictor of former sea-level changes in the area. Based on hierarchical cluster analysis, the intertidal sabkha is ided into three vertical zones (A, B, and C) represented by three foraminiferal assemblages, where agglutinated species occupied Zone A and calcareous species occupied the other two zones. In Zone A (high intertidal), Agglutinella compressa, Clavulina angularis and C. multicamerata are dominant species with a minor presence of Peneroplis planatus, Coscinospira hemprichii, Sorites orbiculus, Quinqueloculina lamarckiana, Q. seminula, Ammonia convexa and A. tepida . In contrast, in Zone B (middle intertidal) the most abundant species are P. planatus, C. hemprichii, S. orbiculus, Q. lamarckiana, Q. seminula and Q. laevigata , while Zone C (low intertidal) is characterized by C. hemprichii, Q. costata, S. orbiculus, P. planatus, A. convexa, A. tepida, Spiroloculina communis , and S. costigera. A transfer function for sea-level reconstruction was developed using a modern dataset of 75 contemporary sediment s les and 99 species collected from several transects across the sabkha. The model provided an error of 0.12 m, suggesting that intertidal foraminifers can be used to assess past sea-level changes with high precision in Al-Kharrar Lagoon, and adjacent regions.
Publisher: Elsevier BV
Date: 12-2016
Publisher: Elsevier BV
Date: 09-2017
Publisher: Elsevier BV
Date: 02-2016
Publisher: Elsevier BV
Date: 08-2002
Publisher: Elsevier BV
Date: 02-2018
Publisher: Elsevier BV
Date: 11-2021
Publisher: MDPI AG
Date: 18-05-2021
DOI: 10.3390/ENVIRONMENTS8050046
Abstract: Global elevation datasets such as the Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) are the best available terrain data in many parts of the world. Consequently, SRTM is widely used for understanding the risk of coastal inundation due to climate change-induced sea level rise. However, SRTM elevations are prone to error, giving rise to uncertainty in the quality of the inundation projections. This study investigated the error propagation model for the Shatt al-Arab River region (SARR) to understand the impact of DEM error on an inundation model in this sensitive, low-lying coastal region. The analysis involved three stages. First, a multiple regression model, parameterized from the Mississippi River delta region, was used to generate an expected DEM error surface for the SARR. This surface was subtracted from the SRTM DEM for the SARR to adjust it. Second, residuals from this model were simulated for the SARR. Modelled residuals were subtracted from the adjusted SRTM to produce 50 DEM realizations capturing potential elevation variation. Third, the DEM realizations were each used in a geospatial “bathtub” inundation model to estimate flooding area in the region given 1 m of sea level rise. Across all realizations, the area predicted to flood covered about 50% of the entire region, while predicted flooding using the raw SRTM covered only about 28%, indicating substantial underprediction of the affected area when error was not accounted for. This study can be an applicable approach within such environments worldwide.
No related grants have been discovered for Brian Jones.