ORCID Profile
0000-0001-8694-6822
Current Organisations
Queensland University of Technology
,
University of Queensland
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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 | Geology | Marine Geoscience | Archaeology | Aboriginal and Torres Strait Islander Archaeology | Microbial Genetics | Quaternary Environments | Geochemistry | Heritage and Cultural Conservation | Geochronology And Isotope Geochemistry | Archaeological Science | Climatology (Incl. Palaeoclimatology) | Geochronology
ANZSRC Socio-Economic Objective (SEO)
Effects of Climate Change and Variability on Australia (excl. Social Impacts) | Expanding Knowledge in the Earth Sciences | Social Impacts of Climate Change and Variability | Understanding Australia's Past | Conserving Aboriginal and Torres Strait Islander Heritage | Climate variability | Oil and Gas Exploration | Mineral Resources (excl. Energy Resources) not elsewhere classified | Mining and Extraction of Aluminium Ores | Earth sciences |
Related Links
Publications
IODP Expedition 339 in the Gulf of Cadiz and off West Iberia: decoding the environmental significance of the Mediterranean outflow water and its global influence
Publisher: Copernicus GmbH
Date: 05-11-2013
DOI: 10.5194/SD-16-1-2013
Abstract: Abstract. IODP Expedition 339 drilled five sites in the Gulf of Cadiz and two off the west Iberian margin (November 2011 to January 2012), and recovered 5.5 km of sediment cores with an average recovery of 86.4%. The Gulf of Cadiz was targeted for drilling as a key location for the investigation of Mediterranean outflow water (MOW) through the Gibraltar Gateway and its influence on global circulation and climate. It is also a prime area for understanding the effects of tectonic activity on evolution of the Gibraltar Gateway and on margin sedimentation. We penetrated into the Miocene at two different sites and established a strong signal of MOW in the sedimentary record of the Gulf of Cadiz, following the opening of the Gibraltar Gateway. Preliminary results show the initiation of contourite deposition at 4.2–4.5 Ma, although subsequent research will establish whether this dates the onset of MOW. The Pliocene succession, penetrated at four sites, shows low bottom current activity linked with a weak MOW. Significant widespread unconformities, present in all sites but with hiatuses of variable duration, are interpreted as a signal of intensified MOW, coupled with flow confinement. The Quaternary succession shows a much more pronounced phase of contourite drift development, with two periods of MOW intensification separated by a widespread unconformity. Following this, the final phase of drift evolution established the contourite depositional system (CDS) architecture we see today. There is a significant climate control on this evolution of MOW and bottom-current activity. However, from the closure of the Atlantic–Mediterranean gateways in Spain and Morocco just over 6 Ma and the opening of the Gibraltar Gateway at 5.3 Ma, there has been an even stronger tectonic control on margin development, downslope sediment transport and contourite drift evolution. The Gulf of Cadiz is the world's premier contourite laboratory and thus presents an ideal testing ground for the contourite paradigm. Further study of these contourites will allow us to resolve outstanding issues related to depositional processes, drift budgets, and recognition of fossil contourites in the ancient record on shore. The expedition also verified an enormous quantity and extensive distribution of contourite sands that are clean and well sorted. These represent a relatively untapped and important exploration target for potential oil and gas reservoirs.
An Introduction to Dating Techniques
Publisher: Elsevier
Date: 2013
Holocene sea-level change on the southeast coast of Australia: A review
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.
Dataset of characteristic remanent magnetization and magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform)
Publisher: Elsevier BV
Date: 12-2019
Facies architecture, morphostratigraphy, and sedimentary evolution of a rapidly-infilled Holocene incised-valley estuary: The lower Manawatu valley, North Island New Zealand
Publisher: Elsevier BV
Date: 08-2017
The "Shackleton Site" (IODP Site U1385) on the Iberian Margin
Publisher: Copernicus GmbH
Date: 24-10-2023
Abstract: Abstract. Nick Shackleton's research on piston cores from the Iberian margin highlighted the importance of this region for providing high-fidelity records of millennial-scale climate variability, and for correlating climate events from the marine environment to polar ice cores and European terrestrial sequences. During the Integrated Ocean Drilling Program (IODP) Expedition 339, we sought to extend the Iberian margin sediment record by drilling with the D/V JOIDES Resolution. Five holes were cored at Site U1385 using the advanced piston corer (APC) system to a maximum depth of ~155.9 m below sea floor (m b.s.f.). Immediately after the expedition, cores from all holes were analyzed by core scanning X-ray fluorescence (XRF) at 1 cm spatial resolution. Ca/Ti data were used to accurately correlate from hole-to-hole and construct a composite spliced section, containing no gaps or disturbed intervals to 166.5 m composite depth (mcd). A low-resolution (20 cm s le spacing) oxygen isotope record confirms that Site U1385 contains a continuous record of hemipelagic sedimentation from the Holocene to 1.43 Ma (Marine Isotope Stage 46). The sediment profile at Site U1385 extends across the middle Pleistocene transition (MPT) with sedimentation rates averaging ~10 cm kyr−1. Strong precession cycles in colour and elemental XRF signals provide a powerful tool for developing an orbitally tuned reference timescale. Site U1385 is likely to become an important type section for marine–ice–terrestrial core correlations and the study of orbital- and millennial-scale climate variability.
The geomorphological evolution of a wave-dominated barrier estuary: Burrill Lake, New South Wales, Australia
Publisher: Elsevier BV
Date: 06-2006
Holocene evolution of the Chan May coastal embayment, central Vietnam: Changing coastal dynamics associated with decreasing rates of progradation possibly forced by mid- to late-Holocene sea-level cha
Publisher: Elsevier BV
Date: 10-2020
Geomorphic evidence for mid-late Holocene higher sea level from southeastern Australia
Publisher: Elsevier BV
Date: 07-2010
Patterned fen formation and development from the Great Sandy Region, south-east Queensland, Australia
Publisher: CSIRO Publishing
Date: 2016
DOI: 10.1071/MF14359
Abstract: The Great Sandy Region (incorporating Fraser Island and the Cooloola sand-mass), south-east Queensland, contains a significant area of Ramsar-listed coastal wetlands, including the globally important patterned fen complexes. These mires form an elaborate network of pools surrounded by vegetated peat ridges and are the only known subtropical, Southern Hemisphere ex les, with wetlands of this type typically located in high northern latitudes. Sedimentological, palynological and charcoal analysis from the Wathumba and Moon Point complexes on Fraser Island indicate two periods of sw formation (that may contain patterned fens), one commencing at 12 000 years ago (Moon Point) and the other ~4300 years ago (Wathumba). Wetland formation and development is thought to be related to a combination of biological and hydrological processes with the dominant peat-forming rush, Empodisma minus, being an important component of both patterned and non-patterned mires within the region. In contrast to Northern Hemisphere paludifying systems, the patterning appears to initiate at the start of wetland development or as part of an infilling process. The wetlands dominated by E. minus are highly resilient to disturbance, particularly burning and sea level alterations, and appear to form important refuge areas for hibians, fish and birds (both non-migratory and migratory) over thousands of years.
The geomorphological evolution of a saline coastal lagoon on the southeast coast of Australia: Swan Lake, New South Wales
Publisher: Elsevier BV
Date: 08-2019
A two million year record of low-latitude aridity linked to continental weathering from the Maldives
Publisher: Springer Science and Business Media LLC
Date: 12-2018
Understanding past climate variation and environmental change for the future of an iconic landscape – K'gari Fraser Island, Queensland, Australia
Publisher: Informa UK Limited
Date: 18-03-2015
Micro-scale dissolution seams mobilise carbon in deep-sea limestones
Publisher: Springer Science and Business Media LLC
Date: 27-08-2021
DOI: 10.1038/S43247-021-00257-W
Abstract: Measuring the amount of carbon captured in deep-sea limestones is fundamental to understanding the long-term carbon cycle because pelagic limestones represent Earth’s largest carbon sink since the mid-Mesozoic. However, their contribution to the long-term carbon cycle is poorly quantified. Here, we use X-ray fluorescence and scanning X-ray diffraction microscopy for high-resolution chemical and structural analysis of pelagic limestone from the Paleocene Kaiwhata Formation in New Zealand. We identify densely packed diagenetic micro-dissolution seams that are invisible to light and electron-beam microscopes in most cases. Mass-balance calculations indicate that in idual seams remove ~50% of the calcite mud matrix while their bulk-s le carbon loss adds up to ~10%. The liberated carbon is trapped in situ as calcite cement or returned to the ocean during physical compaction or soft-sediment deformation. We suggest micro-dissolution structures may play an important role in the long-term carbon cycle by modulating carbon exchange between the geosphere and hydrosphere.
Digital image treatment applied to ichnological analysis of marine core sediments
Publisher: Springer Science and Business Media LLC
Date: 19-10-2013
Mid-Holocene Aboriginal occupation of offshore islands in northern Australia? A reassessment of Wurdukanhan, Mornington Island, southern Gulf of Carpentaria, Australia
Publisher: Elsevier BV
Date: 10-2015
Late Quaternary geomorphology of the Manawatu coastal plain, North Island, New Zealand
Publisher: Elsevier BV
Date: 07-2010
Onset of Mediterranean outflow into the North Atlantic
Publisher: American Association for the Advancement of Science (AAAS)
Date: 13-06-2014
Abstract: The trickle of water that began to flow from the Mediterranean Sea into the Atlantic Ocean after the opening of the Strait of Gibraltar turned into a veritable flood by the end of the Pliocene 2 to 3 million years ago. It then began to influence large-scale ocean circulation in earnest. Hernández-Molina et al. describe marine sediment cores collected by an ocean drilling expedition (see the Perspective by Filippelli). The results reveal a detailed history of the timing of Mediterranean outflow water activity and show how the addition of that warm saline water to the cooler less-salty waters of the Atlantic was related to climate changes, deep ocean circulation, and plate tectonics. Science , this issue p. 1244 see also p. 1228
Short-term late Holocene dry season occupation and sandy-mud flat focused foraging at Murdumurdu, Bentinck Island, Gulf of Carpentaria
Publisher: James Cook University
Date: 22-08-2017
DOI: 10.25120/QAR.20.2017.3588
Abstract: Archaeological survey, excavations, and analyses of the Murdumurdu shell midden on Bentinck Island, Gulf of Carpentaria are reported. Patterns of subsistence as well as the timing and periodicity of site use are investigated through quantification of cultural materials, AMS radiocarbon dating, stable isotopic analysis of Marcia hiantina shell carbonates (δ18O and δ13C), magnetic susceptibility analysis of the deposits and palaeoenvironmental reconstruction. Exploitation of shellfish focused on sandy-mud flat species (especially M. hiantina and Gafrarium pectinatum) with occupation occurring exclusively during the dry season (May-August). Radiocarbon dating reveals that the main period of occupation was short, albeit intense and occurred c.300 years ago. Initiation of occupation closely follows the establishment of freshwater conditions in the adjacent Marralda Sw . These factors suggest that use of Murdumurdu was limited, potentially representing a single deposition event or multiple short, discrete episodes, in a landscape rich with similar archaeological deposits.
A reference time scale for Site U1385 (Shackleton Site) on the SW Iberian Margin
Publisher: Elsevier BV
Date: 10-2015
Contrasting sedimentation rates in Lake Illawarra and St Georges Basin, two large barrier estuaries on the southeast coast of Australia
Publisher: Springer Science and Business Media LLC
Date: 15-02-2011
Distribution, microphysical properties, and tectonic controls of deformation bands in the Miocene subduction wedge (Whakataki Formation) of the Hikurangi subduction zone
Publisher: Copernicus GmbH
Date: 25-01-2021
Abstract: Abstract. We analyse deformation bands related to horizontal contraction with an intermittent period of horizontal extension in Miocene turbidites of the Whakataki Formation south of Castlepoint, Wairarapa, North Island, New Zealand. In the Whakataki Formation, three sets of cataclastic deformation bands are identified: (1) normal-sense compactional shear bands (CSBs), (2) reverse-sense CSBs, and (3) reverse-sense shear-enhanced compaction bands (SECBs). During extension, CSBs are associated with normal faults. When propagating through clay-rich interbeds, extensional bands are characterised by clay smear and grain size reduction. During contraction, sandstone-dominated sequences host SECBs, and rare CSBs, that are generally distributed in pervasive patterns. A quantitative spacing analysis shows that most outcrops are characterised by mixed spatial distributions of deformation bands, interpreted as a consequence of overprint due to progressive deformation or distinct multiple generations of deformation bands from different deformation phases. As many deformation bands are parallel to adjacent juvenile normal faults and reverse faults, bands are likely precursors to faults. With progressive deformation, the linkage of distributed deformation bands across sedimentary beds occurs to form through-going faults. During this process, bands associated with the wall-, tip-, and interaction-damage zones overprint earlier distributions resulting in complex spatial patterns. Regularly spaced bands are pervasively distributed when far away from faults. Microstructural analysis shows that all deformation bands form by inelastic pore collapse and grain crushing with an absolute reduction in porosity relative to the host rock between 5 % and 14 %. Hence, deformation bands likely act as fluid flow barriers. Faults and their associated damage zones exhibit a spacing of 9 m on the scale of 10 km and are more commonly observed in areas characterised by higher mudstone-to-sandstone ratios. As a result, extensive clay smear is common in these faults, enhancing the sealing capacity of faults. Therefore, the formation of deformation bands and faults leads to progressive flow compartmentalisation from the scale of 9 m down to about 10 cm – the typical spacing of distributed, regularly spaced deformation bands.
Aspartic acid racemisation dating of mid-Holocene to recent estuarine sedimentation in New South Wales, Australia: A pilot study
Publisher: Elsevier BV
Date: 11-2004
Refinement of Miocene sea level and monsoon events from the sedimentary archive of the Maldives (Indian Ocean)
Publisher: Springer Science and Business Media LLC
Date: 22-01-2018
Holocene sea level fluctuations and the sedimentary evolution of a barrier estuary: Lake Illawarra, New South Wales, Australia
Publisher: Coastal Education and Research Foundation
Date: 09-2005
DOI: 10.2112/03-0110.1
Extended residence times for foraminifera in a marine-influenced terrestrial archaeological deposit and implications for palaeoenvironmental reconstruction
Publisher: Elsevier BV
Date: 02-2016
Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system
Publisher: Elsevier BV
Date: 11-2019
Carbonate delta drift: A new sediment drift type
Publisher: Elsevier BV
Date: 07-2018
The abrupt onset of the modern South Asian Monsoon winds
Publisher: Springer Science and Business Media LLC
Date: 20-07-2016
DOI: 10.1038/SREP29838
Abstract: The South Asian Monson (SAM) is one of the most intense climatic elements yet its initiation and variations are not well established. Dating the deposits of SAM wind-driven currents in IODP cores from the Mal es yields an age of 12. 9 Ma indicating an abrupt SAM onset, over a short period of 300 kyrs. This coincided with the Indian Ocean Oxygen Minimum Zone expansion as revealed by geochemical tracers and the onset of upwelling reflected by the sediment’s content of particulate organic matter. A weaker ‘proto-monsoon’ existed between 12.9 and 25 Ma, as mirrored by the sedimentary signature of dust influx. Abrupt SAM initiation favors a strong influence of climate in addition to the tectonic control, and we propose that the post Miocene Climate Optimum cooling, together with increased continentalization and establishment of the bipolar ocean circulation, i.e. the beginning of the modern world, shifted the monsoon over a threshold towards the modern system.
Anatomy of sand beach ridges: Evidence from severe Tropical Cyclone Yasi and its predecessors, northeast Queensland, Australia
Publisher: American Geophysical Union (AGU)
Date: 09-2013
DOI: 10.1002/JGRF.20122
Correction to: A two million year record of low-latitude aridity linked to continental weathering from the Maldives
Publisher: Springer Science and Business Media LLC
Date: 18-02-2019
Sedimentology and stratigraphy of syn-subduction Miocene fine-grained turbidites deposited in first stages of trench-slope basin development
Publisher: Elsevier BV
Date: 03-2021
An examination of spatial variability in the timing and magnitude of Holocene relative sea-level changes in the New Zealand archipelago
Publisher: Elsevier BV
Date: 2016
Corrigendum to “Carbonate delta drift: A new sediment drift type” [Mar. Geol. 401 (2018) 98–111]
Publisher: Elsevier BV
Date: 12-2018
The Holocene infill of Lake Conjola, a narrow incised valley system on the southeast coast of Australia
Publisher: Elsevier BV
Date: 07-2010
Post-glacial sea-level changes around the Australian margin: a review
Publisher: Elsevier BV
Date: 08-2013
Preparing for coastal change
Publisher: Elsevier BV
Date: 10-2012
Quantitative estimation of bioturbation based on digital image analysis
Publisher: Elsevier BV
Date: 03-2014
Regular spacing of deformation bands in sandstone
Publisher: Elsevier BV
Date: 06-2021
Aminostratigraphy of two Holocene wave-dominated barrier estuaries in Southeastern Australia
Publisher: Coastal Education and Research Foundation
Date: 2006
DOI: 10.2112/05A-0010.1
Environmental context for late Holocene human occupation of the South Wellesley Archipelago, Gulf of Carpentaria, northern Australia
Publisher: Elsevier BV
Date: 10-2015
Holocene sea-level change and coastal landscape evolution in the southern Gulf of Carpentaria, Australia
Publisher: SAGE Publications
Date: 26-06-2018
Abstract: A revised Holocene sea-level history for the southern Gulf of Carpentaria is presented based on new data from the South Wellesley Archipelago and age recalibration of previous research. Results confirm that rising sea levels during the most recent post-glacial marine transgression breached the Arafura Sill ca. 11,700 cal. yr BP. Sea levels continued to rise to ca. –30 m by 10,000 cal. yr BP, leading to full marine conditions. By 7700 cal. yr BP, sea-level reached present mean sea-level (PMSL) and continued to rise to an elevation of between 1.5 m and 2 m above PMSL. Sea level remained ca. + 1.5 between 7000 and 4000 cal. yr BP, followed by rapid regression to within ± 0.5 m of PMSL by ca. 3500 cal. yr BP. When placed into a wider regional context results from this study show that coastal landscape evolution in the tropical north of Australia was not only dependent on sea-level change but also show a direct correlation with Holocene climate variability. Specifically, the formation and preservation of beach-rock deposits, intertidal successions, beach and chenier ridge systems hold valuable sea-level and Holocene climate proxies that can contribute to the growing research into lower latitude Holocene sea-level and climate histories.
A preliminary OSL chronology for coastal dunes on Moreton island, Queensland, Australia - Marginal deposits of A large-scale quaternary shelf sediment system
Publisher: Elsevier BV
Date: 08-2015
International ocean discovery program expedition 359 preliminary report: Maldives monsoon and sea level
Publisher: International Ocean Discovery Program
Date: 07-03-2016
Mediterranean outflow: Environmental significance of the Mediterranean Outflow Water and its global implications (Integrated Ocean Drilling Program Expedition 339 Preliminary Report)
Publisher: Integrated Ocean Drilling Program
Date: 17-09-2012
Cyclic anoxia and organic rich carbonate sediments within a drowned carbonate platform linked to Antarctic ice volume changes: Late Oligocene-early Miocene Maldives
Publisher: Elsevier BV
Date: 09-2019
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