ORCID Profile
0000-0001-7040-3137
Current Organisation
University of Western Australia
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Palaeoclimatology | Archaeology | Aboriginal and Torres Strait Islander Archaeology | Marine Geoscience | Quaternary Environments | Geology | Physical Geography and Environmental Geoscience | Archaeology of Europe, the Mediterranean and the Levant | Geology | Geochronology | Microbial Genetics | Marine geoscience | Microbial genetics | Maritime Archaeology | Earth system sciences
ANZSRC Socio-Economic Objective (SEO)
Effects of Climate Change and Variability on Australia (excl. Social Impacts) | Conserving Aboriginal and Torres Strait Islander Heritage | Climate Change Models | Understanding Australia's Past | Natural Hazards in Coastal and Estuarine Environments | Natural Hazards in Antarctic and Sub-Antarctic Environments | Expanding Knowledge in the Environmental Sciences | Expanding Knowledge in the Earth Sciences |
Related Links
Publications
Seeing the Landscape: Multiple Scales of Visualising Terrestrial Heritage on Rosemary Island (Dampier Archipelago)
Publisher: Ubiquity Press, Ltd.
Date: 2020
DOI: 10.5334/OQ.81
Pliocene-Pleistocene stratigraphy and sea-level estimates, Republic of South Africa with implications for a 400 ppmv CO2 world
Publisher: Wiley
Date: 17-07-2020
High-precision U-series measurements of more than 500,000 year old fossil corals
Publisher: Elsevier BV
Date: 2008
The coralline algal cascades of Tallon Island (Jalan) fringing reef, NW Australia
Publisher: Springer Science and Business Media LLC
Date: 04-02-2015
Remote-Sensed Mapping of Sargassum spp. Distribution around Rottnest Island, Western Australia, Using High-Spatial Resolution WorldView-2 Satellite Data
Publisher: Coastal Education and Research Foundation
Date: 29-10-2015
Age constraints on surface deformation recorded by fossil shorelines at Cape Range, Western Australia
Publisher: Geological Society of America
Date: 24-11-2022
DOI: 10.1130/B36330.1
Reef island evolution in a turbid‐water coral reef province of the Indo‐P acific
Publisher: Wiley
Date: 11-07-2023
DOI: 10.1002/DEP2.242
Abstract: Coral reef islands are vulnerable landforms to environmental change. Constructed of largely unconsolidated reef‐derived sediments, they are highly sensitive to variations in metocean boundary conditions, raising global concern about their future resilience and stability in the face of increased natural hazards, sea‐level rise and anthropogenic climate change. This study examines the evolution of an inshore turbid reef island from the southern Pilbara region of Western Australia (Indo‐Pacific) using detailed analyses of island chronostratigraphy (composition, texture) and geochronology (21 in‐situ radiometric dates) from Eva Island. Downcore, composition of island‐grade (reef‐derived) sediments were homogenous, dominated by molluscan (37%–42%) and coral (32%–37%) constituents. The 14 C radiometric dating of island sediments, beachrock and coral microatolls identified five stages of island formation across changing sea‐level regimes over the mid to late Holocene: (1) limestone platform accretion at ca 6,000 cal yr BP, coinciding with reef decline or ‘give‐up’ on neighbouring Exmouth Gulf reefs (2) sand cay (i.e. core) initiation and vertical aggregation at ca 5,000 cal yr BP during the point of sea‐level regression to current levels (3) major accretion and lateral progradation of the island between 3,500 cal yr BP and 2,500 cal yr BP including the modification of island shorelines through alongshore reworking of sediment (4) lateral accretion and minor expansion to the north and formation of beachrock pavement between 2,500 and 650 cal yr BP and (5) planform adjustment (erosion of the north‐west island) and backstepping under stabilised sea levels over the past 650 years. While this model is comparative to studies on island formation following incremental sea‐level fall following the mid‐Holocene highstand, it demonstrates active landform readjustment under stabilised sea levels over the past 2,000 years, probably the influence of local‐scale metocean boundary conditions within climate windows across the mid to late Holocene period (i.e. independent of sea‐level fluctuations). Importantly, while sediment production rates are predicted to be lower in turbid‐water reef systems than clear water, Eva Island shows no change in carbonate producers (i.e. proportion of mollusc and coral) over the course of island building, indicating the carbonate factory has not experienced significant adjustments in reef ecology, but has remained stable despite low water quality.
A spatial approach to improve coastal bioregion management of the north western Australia
Publisher: Elsevier BV
Date: 07-2016
A wet strawman: A response to Ward et al.
Publisher: Wiley
Date: 26-09-2022
DOI: 10.1002/GEA.21936
Comment on Record of MIS 5 sea-level highstands based on U/Th dated coral terraces of Haiti by Dumas et al. [Quaternary International 2006 106-118]
Publisher: Elsevier BV
Date: 03-2007
Age Constraints on Surface Deformation Recorded by Fossil Shorelines at Cape Range, Western Australia
Publisher: Geological Society of America
Date: 21-08-2021
DOI: 10.1130/B35564.1
Abstract: Laterally continuous terraces along the western flank of Cape Range, Western Australia, record both past sea-level highstands and postdepositional vertical displacement. Four distinct fossil coral reef terraces extend nearly the entire length of the slowly uplifting anticlinal structure (∼100 km), enabling documentation of the timing and degree of deformation-induced elevation contamination of past sea-level estimates from fossil shorelines. Here, we present detailed elevations of the four terraces using differential global positioning system (DGPS) and airborne light detection and ranging (LiDAR) data sets, along with new ages for the three upper terraces. Geochemical dating using strontium isotope stratigraphy techniques revealed, from highest to lowest elevation: a late Miocene reef terrace, a late Pliocene shoreline, and a prominent mid-Pleistocene reef terrace (probably associated with the marine oxygen isotope stage 33–31 interglacial), along with a broad last interglacial (Eemian) reef terrace and lagoon, which terminate at the modern shoreline. Laterally variable elevation data integrated with newly defined ages for the terraces demonstrate a gradual and continuous relative deformation in the region that spans at least the last 6.5 m.y. and constrains the emergence of the Cape Range to sometime prior to the late Miocene. This data set also shows that the most recent interglacial shoreline has undergone & .3 m of vertical warping, suggesting minimal deformation since deposition. By tracing relative uplift rates over multiple terraces for ∼100 km of coastline, we placed constraints on maximum relative sea level (RSL) for the older terraces. Most notably, we were able to place strict maximum RSL elevations of & +34 m on the Pliocene terrace and & +16.5 m on the mid-Pleistocene terrace, with probable RSL being somewhat lower.
Robbins Island
Publisher: Elsevier BV
Date: 04-2023
Geomorphology and late Holocene accretion history of Adele Reef: a northwest Australian mid-shelf platform reef
Publisher: Springer Science and Business Media LLC
Date: 17-08-2016
Carbonate eolianites, quartz sands, and Quaternary sea-level cycles, Western Australia: A chronostratigraphic approach
Publisher: Elsevier BV
Date: 02-2008
The significant role of sediment bio-retexturing within a contemporary carbonate platform system
Publisher: Elsevier BV
Date: 07-2009
The analysis of Last Interglacial (MIS 5e) relative sea-level indicators: Reconstructing sea-level in a warmer world
Publisher: Elsevier BV
Date: 08-2016
Thirty critical research needs for managing an ecologically and culturally unique remote marine environment
Publisher: Elsevier BV
Date: 10-2021
Microbial diversity of sub-bottom sediment cores from a tropical reef system
Publisher: Springer Science and Business Media LLC
Date: 25-02-2022
Corals reveal ENSO-driven synchrony of climate impacts on both terrestrial and marine ecosystems in northern Borneo
Publisher: Springer Science and Business Media LLC
Date: 28-02-2020
DOI: 10.1038/S41598-020-60525-1
Abstract: Extreme climate events, such as the El Niños in 1997/1998 and 2015/16, have led to considerable forest loss in the Southeast Asian region following unprecedented drought and wildfires. In Borneo, the effects of extreme climate events have been exacerbated by rapid urbanization, accelerated deforestation and soil erosion since the 1980s. However, studies quantifying the impact of interannual and long-term ( decades) climatic and anthropogenic change affecting Borneo’s coastal and coral reef environments are lacking. Here, we used coral cores collected in Miri-Sibuti Coral Reefs National Park, Sarawak (Malaysia) to reconstruct the spatio-temporal dynamics of sea surface temperature and oxygen isotopic composition of seawater from 1982 to 2016, based on paired oxygen isotope and Sr/Ca measurements. The results revealed rising sea surface temperatures of 0.26 ± 0.04 °C per decade since 1982. Reconstructed δ 18 O sw displayed positive excursion during major El Niño events of 1983, 1997/98 and 2015/16, indicating drought conditions with less river runoff, rainfall and higher ocean salinities. La Niñas were generally associated with lower δ 18 O sw . We observed a long-term shift from more saline conditions between 1982 and 1995 towards less saline conditions after 1995, which are in agreement with the regional freshening trend, punctuated by saline excursion during El Niños. The decadal shifts were found to be driven by the Pacific Decadal Oscillation (PDO). This study provides the first long-term data on El Niño Southern Oscillation (ENSO)-driven synchrony of climate impacts on both terrestrial and marine ecosystems in northern Borneo. Our results suggest that coral records from northern Borneo are invaluable archives to detect regional ENSO and PDO impacts, and their interaction with the Asian-Australian monsoon, on the hydrological balance in the southern South China Sea beyond the past three decades.
Etched linear dunefields of the Nullarbor Plain; A record of Pliocene-Pleistocene wind patterns across southern Australia
Publisher: Elsevier BV
Date: 11-2020
The timing of sea-level high-stands during Marine Isotope Stages 7.5 and 9: Constraints from the uranium-series dating of fossil corals from Henderson Island
Publisher: Elsevier BV
Date: 06-2010
Revisiting Battistini: Pleistocene Coastal Evolution of Southwestern Madagascar
Publisher: Ubiquity Press, Ltd.
Date: 2022
DOI: 10.5334/OQ.112
Time scales and modes of reef lagoon infilling in the maldives and controls on the onset of reef island formation
Publisher: Geological Society of America
Date: 10-2013
DOI: 10.1130/G34690.1
Amino acid geochronology of individual foraminifer (Pulleniatina obliquiloculata) tests, north Queensland margin, Australia
Publisher: American Geophysical Union (AGU)
Date: 12-2004
DOI: 10.1029/2004PA001059
Long-term spatial variations in turbidity and temperature provide new insights into coral-algal states on extreme/marginal reefs
Publisher: Springer Science and Business Media LLC
Date: 23-05-2023
DOI: 10.1007/S00338-023-02393-5
Abstract: Globally, coral reefs are under threat, with many exhibiting degradation or a shift towards algal-dominated regimes following marine heat waves, and other disturbance events. Marginal coral reefs existing under naturally extreme conditions, such as turbid water reefs, may be more resilient than their clear water counterparts as well as offer some insight into how reefs could look in the future under climate change. Here, we surveyed 27 benthic habitats across an environmental stress gradient in the Exmouth Gulf region of north Western Australia immediately following a marine heatwave event. We used multidecadal remotely sensed turbidity (from an in-situ validated dataset) and temperature, to assess how these environmental drivers influence variability in benthic communities and coral morphology. Long-term turbidity and temperature variability were associated with macroalgal colonisation when exceeding a combined threshold. Coral cover was strongly negatively associated with temperature variability, and positively associated with depth, and wave power, while coral morphology ersity was positively associated with turbidity. While moderate turbidity (long-term average ~ 2 mg/L suspended matter) appeared to raise the threshold for coral bleaching and macroalgal dominance, regions with higher temperature variability ( 3.5 °C) appeared to have already reached this threshold. The region with the least turbidity and temperature variability had the highest amount of coral bleaching from a recent heatwave event and moderate levels of both these variables may confer resilience to coral reefs.
Aboriginal artefacts on the continental shelf reveal ancient drowned cultural landscapes in northwest Australia
Publisher: Public Library of Science (PLoS)
Date: 07-2020
The answers are blowin' in the wind
Publisher: Geological Society of America
Date: 18-07-2019
DOI: 10.1130/G38000.1
Reef to island sediment connections within an inshore turbid reef island system of the eastern Indian Ocean
Publisher: Elsevier BV
Date: 07-2022
Beneath the Top End: A regional assessment of submerged archaeological potential in the Northern Territory, Australia
Publisher: Informa UK Limited
Date: 30-08-2022
Coral reef development and sea-level changes over the past 50,000 years
Publisher: International Association of Sedimentologists
Date: 12-2022
DOI: 10.54780/IASSP49/08
Abstract: Understanding of global sea-level changes and coral reef development is poorly constrained during Marine Isotope Stage 3 (MIS 3 ~ 60 to 30 ka). Australia’s North West Shelf (NWS), at depths of ~ 50 to 120 m below present sea-level (mbsl), represents an ideal natural laboratory to address these knowledge gaps. In this study, the authors investigate a unique suite of sea-bed rock drill (PROD) cores recovered as part of a geotechnical survey from the NWS ~ 150 km south-east of Ashmore Reef. Twenty cores, penetrating to 28 m below sea floor, were collected from the top of the now drowned platform complex in similar water depths (74.8 to 81.6 mbsl), forming two transects ~ 17 km apart. High-resolution 3D seismic and multibeam bathymetry data reveal three distinct, multigenerational platforms that are rimmed by smaller reef terraces and bisected by deeper channels, placing the core transects into a robust, regional geomorphic context that includes a succession of linear palaeo-shorelines and tidal-estuarine channel systems on the adjacent shelf between ~ 90 to 110 mbsl. The authors have completed detailed logging, high-spatial resolution hyperspectral scanning, petrologic, mineralogic and sedimentary facies analysis of these cores, including a precise palaeoenvironmental reconstruction based on coral, algal and larger benthic foraminifera assemblages and extensive radiometric dating. The authors have observed a complex suite of lithologies including in situ coralgal reef frameworks, well-lithified to friable grainstones, packstones and coralline algal floatstone facies separated by at least two major palaeosol horizons. Together with thirty 14C-AMS and closed-system U/Th ages spanning 10.7 to 50 ka, the authors define a complex but consistent record of four distinct chrono-stratigraphic units (Units 1 to 4), representing a repeated succession of shallow reef to deep reef-slope depositional settings as the platforms experienced repeated sea-level oscillations (interstadial/stadial to glacial/deglacial) over the last 75,000 yr. Two distinct phases of shallow-water, high-energy reef development are defined. The age of the older, diagenetically distinct reef unit (Unit 3) is unknown but interpreted to have developed before the MIS 4 lowstand (~ 65 ka). However, firm chronological constraints on the MIS 3 development of the younger reef unit (Unit 2), place the position of relative sea-level (RSL) between ~ 63 to 75 + 1.8 mbsl by 45.95 to 39.23 + 0.2 ka, consistent with other predictions and observations for the region. Following its exposure and demise due to sea-level fall to the Last Glacial Maximum (LGM), the platform system was unable to re-establish fully as it was reflooded during the subsequent deglacial sea-level rise. Deeper reef slope (Unit 1) facies dominate the core tops between ~ 13.2 to 10.7 ka, representing a major hiatus in shallow-water reef development on the platforms. Deglacial sea-level rise was either too fast and/or other environmental conditions inadequate (i.e. massive riverine sediment flux due to the strengthening Australian summer monsoon and/or reworking of shelf sediments) to allow re-establishment of shallow-water coral reef development on the platforms apart from a few isolated and distal locations (i.e. Ashmore, Cartier, Adele and Scott Reefs).
The Mid-Pliocene sea-level conundrum: Glacial isostasy, eustasy and dynamic topography
Publisher: Elsevier BV
Date: 02-2014
Turbid coral reefs
Publisher: MDPI AG
Date: 07-06-2021
DOI: 10.3390/D13060251
Abstract: Increasing evidence suggests that coral reefs exposed to elevated turbidity may be more resilient to climate change impacts and serve as an important conservation hotspot. However, logistical difficulties in studying turbid environments have led to poor representation of these reef types within the scientific literature, with studies using different methods and definitions to characterize turbid reefs. Here we review the geological origins and growth histories of turbid reefs from the Holocene (past), their current ecological and environmental states (present), and their potential responses and resilience to increasing local and global pressures (future). We classify turbid reefs using new descriptors based on their turbidity regime (persistent, fluctuating, transitional) and sources of sediment input (natural versus anthropogenic). Further, by comparing the composition, function and resilience of two of the most studied turbid reefs, Paluma Shoals Reef Complex, Australia (natural turbidity) and Singapore reefs (anthropogenic turbidity), we found them to be two distinct types of turbid reefs with different conservation status. As the geographic range of turbid reefs is expected to increase due to local and global stressors, improving our understanding of their responses to environmental change will be central to global coral reef conservation efforts.
Correction: Aboriginal artefacts on the continental shelf reveal ancient drowned cultural landscapes in northwest Australia
Publisher: Public Library of Science (PLoS)
Date: 15-06-2023
Sea Country: Plurality and knowledge of saltwater territories in Indigenous Australian contexts
Publisher: Wiley
Date: 08-07-2023
DOI: 10.1111/GEOJ.12466
Abstract: There are distinct bodies of cultural knowledge attached to the sea. In this paper we orient the focus towards the nature and extent of cultural framings of sea territories, as inclusive of submerged landscapes, for Indigenous maritime peoples in northern Australia. This approach is distinguished by a pluralist methodology and reorients the primal focus of a human geography and broader geographical scholarship concerning submerged landscapes to begin with an Indigenous perspective. Engaging ethnographic accounts of Indigenous Australian knowledges of Sea Country, as inclusive of ancient pre‐inundation landscapes that lie out‐of‐sight on Australia's continental shelves, highlights the potential for a more expansive vision of human connections to the past and present continental landmass of Australia. Indigenous oral traditions, Dreaming Ancestor narratives and songlines provide extensive detail to assist in understanding these parts of the greater Australian landmass and in this paper are brought into relation with recent sea floor mapping efforts which operate to draw back the water and reveal commensurable geographies upon which to envision possibilities for socialised realms of human emplacement. Both bodies of knowledge generate information of submerged landscapes that call for an expansion of thinking on where the land ends and the sea begins and how submerged terrestrial landscapes are understood across cultures as part of human geography. The approach outlined here calls for a habit of bringing principled systems of understanding to stand together as part of an explanatory schema for a world populated by and yet differentially known by people.
Sea level controls on palaeochannel development within the Swan River estuary during the Late Pleistocene to Holocene
Publisher: Elsevier BV
Date: 06-2017
U-series evidence for widespread reef development in Shark Bay during the last interglacial
Publisher: Elsevier BV
Date: 03-2008
A multi-scalar approach to marine survey and underwater archaeological site prospection in Murujuga, Western Australia
Publisher: Elsevier BV
Date: 05-2021
Interannual response of reef islands to climate-driven variations in water level and wave climate
Publisher: MDPI AG
Date: 14-12-2020
DOI: 10.3390/RS12244089
Abstract: Coral reef islands are among the most vulnerable landforms to climate change. However, our understanding of their morphodynamics at intermediate (seasonal to interannual) timescales remains poor, limiting our ability to forecast how they will evolve in the future. Here, we applied a semi-automated shoreline detection technique (CoastSat.islands) to 20 years of publicly available satellite imagery to investigate the evolution of a group of reef islands located in the eastern Indian Ocean. At interannual timescales, island changes were characterized by the cyclical re-organization of island shorelines in response to the variability in water levels and wave conditions. Interannual variability in forcing parameters was driven by El Niño Southern Oscillation (ENSO) cycles, causing prolonged changes to water levels and wave conditions that established new equilibrium island morphologies. Our results present a new opportunity to measure intermediate temporal scale changes in island morphology that can complement existing short-term (weekly to seasonal) and long-term (decadal) understanding of reef island evolution.
Automatic bedform mapping and characterisation of linear depositional bedforms
Publisher: MDPI AG
Date: 07-01-2022
DOI: 10.3390/RS14020280
Abstract: Bedforms are key components of Earth surfaces and yet their evaluation typically relies on manual measurements that are challenging to reproduce. Several methods exist to automate their identification and calculate their metrics, but they often exhibit limitations where applied at large scales. This paper presents an innovative workflow for identifying and measuring in idual depositional bedforms. The workflow relies on the identification of local minima and maxima that are grouped by neighbourhood analysis and calibrated using curvature. The method was trialed using a synthetic digital elevation model and two bathymetry surveys from Australia’s northwest marine region, resulting in the identification of nearly 2000 bedforms. The comparison of the metrics calculated for each in idual feature with manual measurements show differences of less than 10%, indicating the robustness of the workflow. The cross-comparison of the metrics resulted in the definition of several sub-types of bedforms, including sandwaves and palaeoshorelines, that were then correlated with oceanic conditions, further corroborating the validity of the workflow. Results from this study support the idea that the use of automated methods to characterise bedforms should be further developed and that the integration of automated measurements at large scales will support the development of new classification charts that currently rely solely on manual measurements.
Geomorphological and sedimentological surrogates for the understanding of seagrass distribution within a temperate nearshore setting (Esperance Western Australia)
Publisher: Springer Science and Business Media LLC
Date: 26-05-2019
Stone artefacts on the seabed at a submerged freshwater spring confirm a drowned cultural landscape in Murujuga, Western Australia
Publisher: Elsevier BV
Date: 08-2023
Crowdsourcing in the Quaternary sea level community: insights from the Pliocene
Publisher: Elsevier BV
Date: 11-2012
Morphology and distribution of submerged palaeoshorelines: Insights from the North West Shelf of Australia
Publisher: Elsevier BV
Date: 2022
The evolution of Australian island geographies and the emergence and persistence of Indigenous maritime cultures
Publisher: Elsevier BV
Date: 05-2023
Geomorphic evidence of major sea-level fluctuations during marine isotope substage-5e, Cape Cuvier, Western Australia
Publisher: Elsevier BV
Date: 12-2008
Identifying metocean drivers of turbidity using 18 years of modis satellite data
Publisher: MDPI AG
Date: 10-09-2021
DOI: 10.3390/RS13183616
Abstract: Turbidity impacts the growth and productivity of marine benthic habitats due to light limitation. Daily/monthly synoptic and tidal influences often drive turbidity fluctuations, however, our understanding of what drives turbidity across seasonal/interannual timescales is often limited, thus impeding our ability to forecast climate change impacts to ecologically significant habitats. Here, we analysed long term (18-year) MODIS-aqua data to derive turbidity and the associated meteorological and oceanographic (metocean) processes in an arid tropical embayment (Exmouth Gulf in Western Australia) within the eastern Indian Ocean. We found turbidity was associated with El Niño Southern Oscillation (ENSO) cycles as well as Indian Ocean Dipole (IOD) events. Winds from the adjacent terrestrial region were also associated with turbidity and an upward trend in turbidity was evident in the body of the gulf over the 18 years. Our results identify hydrological processes that could be affected by global climate cycles undergoing change and reveal opportunities for managers to reduce impacts to ecologically important ecosystems.
Response to comment on Ward et al.’s ‘Insights into the procurement and distribution of fossiliferous chert artefacts across southern Australia from the archival record’
Publisher: Informa UK Limited
Date: 02-09-2021
Geomorphic classification of coral reefs in the north western Australian shelf
Publisher: Elsevier BV
Date: 09-2016
The biogeomorphology of Shark Bay's microbialite coasts
Publisher: Elsevier BV
Date: 06-2020
Discovery of Holocene ooid shoals in a siliciclastic delta, De Grey River, North West Shelf, Australia
Publisher: Geological Society of America
Date: 21-02-2023
DOI: 10.1130/G50840.1
Abstract: Onshore and offshore site investigations along the dryland tide-dominated De Grey River delta (northwestern Australia) led to the unexpected discovery of the largest yet-known marine ooid shoals in the Indo-Pacific region. Ooids exhibit up to 60 tangential aragonitic laminae that were formed around fluvial sediment grains during the late Holocene. Covering an area & km2, their spatial extent rivals in size in idual ooid shoals from the Bahamas. Shoals appear to be spatially linked with the De Grey River, suggesting that fluvial outputs, combined with a macrotidal range, facilitated the precipitation of the ooids. Following their formation, ooids were reworked through tidal and wave processes along the delta. As a result, the delta sedimentary features, including beach ridges, mouth bars, and distributary channels, are composed of ooids. This discovery broadens the range of depositional and climatic environments in which ooids can form and demonstrates that fluvial runoff may not inhibit aragonite precipitation. Such a configuration also provides a unique analogue for ancient ooids found in association with siliciclastic grains and further indicates that the interpretation of typical siliciclastic geomorphologies from geophysical data does not preclude the presence of carbonate grains.
The enigma of 3400 years BP coastal oolites in tropical northwest Western Australia... why then, why there?
Publisher: Elsevier BV
Date: 05-2006
Synchrotron X-ray tomographic imaging of embedded fossil invertebrates in Aboriginal stone artefacts from Western Australia: Implications for sourcing, distribution and chronostratigraphy
Publisher: Elsevier BV
Date: 08-2019
Implications of reef ecosystem change for the stability and maintenance of coral reef islands
Publisher: Wiley
Date: 19-09-2011
Predicting Responses of Geo-ecological Carbonate Reef Systems to Climate Change
Publisher: CRC Press
Date: 22-09-2021
Underwater archaeology and submerged landscapes in Western Australia
Publisher: Antiquity Publications
Date: 06-2018
Abstract: This research aims to explore the submerged landscapes of the Pilbara of western Australia, using predictive archaeological modelling, airborne LiDAR, marine acoustics, coring and er survey. It includes excavation and geophysical investigation of a submerged shell midden in Denmark to establish guidelines for the underwater discovery of such sites elsewhere.
New approaches for assessing site formation of submerged lithic scatters
Publisher: Elsevier BV
Date: 06-2023
Towards a regional high-resolution bathymetry of the North West Shelf of Australia based on Sentinel-2 satellite images, 3D seismic surveys, and historical datasets
Publisher: Copernicus GmbH
Date: 05-11-2021
DOI: 10.5194/ESSD-13-5191-2021
Abstract: Abstract. High-resolution bathymetry forms critical datasets for marine geoscientists. It can be used to characterize the seafloor and its marine habitats, to understand past sedimentary records, and even to support the development of offshore engineering projects. Most methods to acquire bathymetry data are costly and can only be practically deployed in relatively small areas. It is therefore critical to develop cost-effective and advanced techniques to produce regional-scale bathymetry datasets. This paper presents an integrated workflow that builds on satellites images and 3D seismic surveys, integrated with historical depth soundings, to generate regional high-resolution digital elevation models (DEMs). The method was applied to the southern half of Australia's North West Shelf and led to the creation of new high-resolution bathymetry grids, with a resolution of 10 × 10 m in nearshore areas and 30 × 30 m elsewhere. The vertical and spatial accuracy of the datasets have been assessed using open-source Laser Airborne Depth Sounder (LADS) and multibeam echosounder (MBES) surveys as a reference. The comparison of the datasets indicates that the seismic-derived bathymetry has a vertical accuracy better than 1 m + 2 % of the absolute water depth, while the satellite-derived bathymetry has a depth accuracy better than 1 m + 5 % of the absolute water depth. This 30 × 30 m dataset constitutes a significant improvement of the pre-existing regional 250 × 250 m grid and will support the onset of research projects on coastal morphologies, marine habitats, archaeology, and sedimentology. All source datasets are publicly available, and the methods are fully integrated into Python scripts, making them readily applicable elsewhere in Australia and around the world. The regional digital elevation model and the underlying datasets can be accessed at 0.26186/144600 (Lebrec et al., 2021).
Quaternary onset and evolution of Kimberley coral reefs (Northwest Australia) revealed by high-resolution seismic imaging
Publisher: Elsevier BV
Date: 07-2016
Ice sheet collapse following a prolonged period of stable sea level during the last interglacial
Publisher: Springer Science and Business Media LLC
Date: 28-07-2013
DOI: 10.1038/NGEO1890
Assessing Reef island sensitivity based on LiDAR-derived morphometric indicators
Publisher: MDPI AG
Date: 17-09-2020
DOI: 10.3390/RS12183033
Abstract: Reef islands are some of the most highly sensitive landforms to the impacts of future environmental change. Previous assessments of island morphodynamics primarily relied on historical aerial and satellite imagery. These approaches limit analysis to two-dimensional parameters, with no ability to assess long-term changes to island volume or elevation. Here, we use high-resolution airborne LiDAR data to assess three-dimensional reef island features for 22 islands along the north-western coast of Australia. Our primary objective was to utilize two regional LiDAR datasets to identify characteristics indicative of island sensitivity and future vulnerability. Results show reef platform area to be an accurate predictor of island area and volume suggesting larger island volumes may reflect (1) increased carbonate production and supply from the reef platform and/or (2) enhanced shoreline protection by larger reef platforms. Locations of foredune scarping (an erosional signature) and island orientations were aligned to the regional wind and wave climate. Reef island characteristics (island area, volume, elevation, scarping, and platform area) were used to rank islands according to sensitivity, using a new Island Sensitivity Characteristics Index (ISCi) where low ISCi indicates stable islands (large areas and volumes, high elevations, and fewer scarped areas) and high ISCi indicates unstable islands (small areas and volumes, low elevations, and more scarped areas). Comparison of two LiDAR surveys from 2016 and 2018 validates the use of 3D morphometrics as important (direct) measurements of island landform change, and can complement the use of 2D parameters (e.g., area) moving forward. Results demonstrate that ongoing use of airborne LiDAR and other 3D technology for monitoring coral reef islands at regional scales will enable more accurate quantification of their sensitivity to future impacts of global environmental change.
Departures from eustasy in Pliocene sea-level records
Publisher: Springer Science and Business Media LLC
Date: 17-04-2011
DOI: 10.1038/NGEO1118
Insights into the procurement and distribution of fossiliferous chert artefacts across Southern Australia from the archival record
Publisher: Informa UK Limited
Date: 04-05-2019
Exploring Sea Country through high-resolution 3D seismic imaging of Australia's NW shelf: Resolving early coastal landscapes and preservation of underwater cultural heritage
Publisher: Elsevier BV
Date: 07-2020
Holocene reef evolution in a macrotidal setting
Publisher: Springer Science and Business Media LLC
Date: 26-02-2016
Reply to Bastian, L.V.'s, Comment on Hearty, P.J. and O'Leary, M.J., 2008. Carbonate eolianites, quartz sands, and Quaternary sea-level cycles, Western Australia: A chronostratigraphic approach. Quaternary Geochronology 3: 26-55
Publisher: Elsevier BV
Date: 02-2010
Drilling 1100-km-long seafloor ridges reveals how palaeoshorelines control carbonate shelf morphologies (North West Shelf, Australia)
Publisher: Elsevier BV
Date: 07-2023
Identification and mapping of marine submerged aquatic vegetation in shallow coastal waters with worldview-2 satellite data
Publisher: Coastal Education and Research Foundation
Date: 03-03-2016
DOI: 10.2112/SI75-258.1
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Publisher: Elsevier BV
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