From Synchrotron Characterisation of Single Fluid Inclusions to Archaean Geodynamics: An Integrated Study of Fluid-Rock Interaction in the Primitive Crust. In the primitive Earth, a wide range of phenomena including the initiation of biological activity and the formation of ore deposits were related to the mobilisation of mineralised fluids through the crust. In the Archaean craton of the Pilbara (WA), we have identified, within its tectonic framework, a crustal-scale plumbing system that channe ....From Synchrotron Characterisation of Single Fluid Inclusions to Archaean Geodynamics: An Integrated Study of Fluid-Rock Interaction in the Primitive Crust. In the primitive Earth, a wide range of phenomena including the initiation of biological activity and the formation of ore deposits were related to the mobilisation of mineralised fluids through the crust. In the Archaean craton of the Pilbara (WA), we have identified, within its tectonic framework, a crustal-scale plumbing system that channelled large volumes of mineralised hydrothermal solutions. Our objective is to understand the development of this plumbing system in relation to Archaean crustal geodynamics using a combination of structural geology, metamorphic petrology, geochronology, geochemistry, and the analysis of single-fluid inclusion using synchrotron and other X-ray sources.Read moreRead less
Geochemistry of ore metals at very high temperatures. The world’s largest copper and gold mines occur in extinct volcanoes around the Pacific Rim. Understanding how these essential metals are mobilised from magmas in the roots of volcanoes to become ore deposits and how to recognize where this has occurred is crucial in exploration for new deposits.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100160
Funder
Australian Research Council
Funding Amount
$297,463.00
Summary
Femtosecond laser micropyrolysis gas chromatograph-mass spectrometer. This project aims to build a femtosecond-laser, micropyrolysis gas-chromatographmass spectrometer. The facility will have the capability to selectively analyse very small petrographically-recognisable organic components, hence bridging the analytical gap between organic petrography and organic geochemistry. The project aims to understand the early evolution of life, the response of the biosphere to mass extinction, the migrati ....Femtosecond laser micropyrolysis gas chromatograph-mass spectrometer. This project aims to build a femtosecond-laser, micropyrolysis gas-chromatographmass spectrometer. The facility will have the capability to selectively analyse very small petrographically-recognisable organic components, hence bridging the analytical gap between organic petrography and organic geochemistry. The project aims to understand the early evolution of life, the response of the biosphere to mass extinction, the migration of fluids in petroleum reservoirs, the heterogeneity of organic matter in shale gas reservoirs, and the composition of macromolecules in biominerals and macerals. The facility will contribute to a broad range of Australia’s theoretical and applied problems in geoscience and geobiology.Read moreRead less
Experimental constraints on the genesis of gold-rich ore deposits. The project will provide a new set of tools to explore for gold-rich ore deposits in Australia and globally. By integrating geochemical studies with cutting-edge experiments carried out at three Australian universities in strategic partnership with industry, the outcomes of this project will provide much needed knowledge to predict the locations of large gold-rich deposits that are concealed beneath vast expanses of the Australia ....Experimental constraints on the genesis of gold-rich ore deposits. The project will provide a new set of tools to explore for gold-rich ore deposits in Australia and globally. By integrating geochemical studies with cutting-edge experiments carried out at three Australian universities in strategic partnership with industry, the outcomes of this project will provide much needed knowledge to predict the locations of large gold-rich deposits that are concealed beneath vast expanses of the Australian continent. The new results will translate into smarter exploration practice, significantly enhancing success in targeting ore deposits that are rich in high-value metal and display the smallest have a small environmental footprint, to underpin the sustainability of our nation into the future.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560786
Funder
Australian Research Council
Funding Amount
$495,000.00
Summary
A ThermoFinnigan Triton high-sensitivity thermal ionisation mass spectrometer for constraining geoscience rates and environmental processes via Ra and Os analysis. The short-lived isotope 226Ra provides a powerful new tool for constraining the nature of melting and magma/fluid transport processes within the Earth. Conversely, Os isotopes can track ancient recycled components, core-mantle boundary interaction and date organic-rich sediments. The installation of a high-sensitivity thermal ionisati ....A ThermoFinnigan Triton high-sensitivity thermal ionisation mass spectrometer for constraining geoscience rates and environmental processes via Ra and Os analysis. The short-lived isotope 226Ra provides a powerful new tool for constraining the nature of melting and magma/fluid transport processes within the Earth. Conversely, Os isotopes can track ancient recycled components, core-mantle boundary interaction and date organic-rich sediments. The installation of a high-sensitivity thermal ionisation mass spectrometer at Macquarie University will enable research in these exciting endeavours and enhance a world-class analytical facility with widespread and lasting utility. Planned research will constrain deep earth processes, magma/water transport processes, magma-mantle/chromatography, volcanic hazards, ore deposit formation, controversial climatic models, soil erosion and early planet differentiation.Read moreRead less
Molecular fossils, the evolution of Earth's early oceans and the origin of the oldest oil. Australia retains undiscovered oil reserves. We believe that a change in primitive marine life forms may have fundamentally changed the chemistry of the Earth's oceans and is responsible for the world's oldest oil reserves. While these reserves have been found, and successfully commercialised, overseas, similar reservoirs in Australia remain elusive. The project will develop and apply technologies based on ....Molecular fossils, the evolution of Earth's early oceans and the origin of the oldest oil. Australia retains undiscovered oil reserves. We believe that a change in primitive marine life forms may have fundamentally changed the chemistry of the Earth's oceans and is responsible for the world's oldest oil reserves. While these reserves have been found, and successfully commercialised, overseas, similar reservoirs in Australia remain elusive. The project will develop and apply technologies based on hydrocarbon biomarkers to help determine the oil-producing rock types of Precambrian sedimentary rocks. This allows us to estimate the oil's age and predict where petroleum reservoirs may be hidden. PhD students involved in the project will gain valuable knowledge about the link between changes in ecology and the carbon cycle.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100053
Funder
Australian Research Council
Funding Amount
$358,031.00
Summary
A national facility for the analysis of pyrogenic carbon. This project aims to develop a national facility for pyrogenic carbon analysis. Pyrogenic carbon is a poorly constrained, slow-cycling terrestrial carbon pool with significant carbon sequestration potential. The project expects to expand the newly developed hydrogen pyrolysis analytical capability to provide high throughput, robust measurement of the abundance and isotope composition of pyrogenic carbon in soils and sediments. This will p ....A national facility for the analysis of pyrogenic carbon. This project aims to develop a national facility for pyrogenic carbon analysis. Pyrogenic carbon is a poorly constrained, slow-cycling terrestrial carbon pool with significant carbon sequestration potential. The project expects to expand the newly developed hydrogen pyrolysis analytical capability to provide high throughput, robust measurement of the abundance and isotope composition of pyrogenic carbon in soils and sediments. This will provide significant benefit, such as the ability to make significant advances in areas as diverse as geochronology, archaeology, palaeoecology, soil science geomorphology and carbon cycle/sequestration science.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100159
Funder
Australian Research Council
Funding Amount
$160,000.00
Summary
Mobile Australian field isotope alliance. This project will enable a quantum leap in capacity to undertake, real-time, field-based studies of environmental processes using the natural isotope tracers of carbon, oxygen and hydrogen. This will enable the project to address a range of fundamental research questions in climate change, water resources, ecology and human impact in tropical Australia.
Uncoupling past salinity and temperature signals in the Indo-Pacific Warm Pool: implications for climate change in the Australian region. The tropical oceans and in particular the Indo-Pacific Warm Pool, immediately to Australia's north, play a key role in modulating global and Australian climate through El-Niño and related phenomena. Using a new microanalysis approach to analyse individual foraminifera from deep-sea cores, we will reconstruct past salinity and temperature variability within the ....Uncoupling past salinity and temperature signals in the Indo-Pacific Warm Pool: implications for climate change in the Australian region. The tropical oceans and in particular the Indo-Pacific Warm Pool, immediately to Australia's north, play a key role in modulating global and Australian climate through El-Niño and related phenomena. Using a new microanalysis approach to analyse individual foraminifera from deep-sea cores, we will reconstruct past salinity and temperature variability within the Warm Pool, and determine changing rainfall patterns and, ENSO and monsoon behaviour under climate conditions that lie outside modern records. This information is vital for understanding past climate and predicting the future intensity and frequency of El-Niño related drought and wet cycles in Australia.Read moreRead less
Early Archaean Ecology - Exploring the Evidence and Habitats for Early (3.6-3.85 billion year old) Life. The prime scientific quest of the 21st century will be the origin of life. The earliest evidence for life is at 3.85 Ga (billion-years) in the world's oldest-known sediments from Akilia, Greenland. These rocks were contorted and heated during later crustal upheavals, and the evidence for life at 3.85 Ga is controversial. Such life would be highly significant, because then first, primitive li ....Early Archaean Ecology - Exploring the Evidence and Habitats for Early (3.6-3.85 billion year old) Life. The prime scientific quest of the 21st century will be the origin of life. The earliest evidence for life is at 3.85 Ga (billion-years) in the world's oldest-known sediments from Akilia, Greenland. These rocks were contorted and heated during later crustal upheavals, and the evidence for life at 3.85 Ga is controversial. Such life would be highly significant, because then first, primitive life arose before the known stratigraphic record. The project will extend the methods used to detect earliest life, and use Greenland rocks to explore other possible early habitats (submarine volcanic rocks and hot springs) and understand its environment.Read moreRead less