The Impact of Changing Climatic Conditions inferred from the Isotope Abundances of Trace Metals in Global Ice Sheets and Glaciers. In this project Greenland and Antarctic ice-cores more than 3 km long will be used to investigate climatic variation extending back more that 4 complete glacial cycles. Some of these ice-cores include sections of refrozen water formed from sub-glacial Antarctic lake water. This project will use naturally occurring lead and strontium isotopic tracers to fingerprint ....The Impact of Changing Climatic Conditions inferred from the Isotope Abundances of Trace Metals in Global Ice Sheets and Glaciers. In this project Greenland and Antarctic ice-cores more than 3 km long will be used to investigate climatic variation extending back more that 4 complete glacial cycles. Some of these ice-cores include sections of refrozen water formed from sub-glacial Antarctic lake water. This project will use naturally occurring lead and strontium isotopic tracers to fingerprint impurities in the ice, because they have the potential to simultaneously signal the timing and location of past episodes of climate change. This will lead to an improvement in our understanding of the processes that cause these changes.Read moreRead less
Evolution of the Proterozoic lithosphere and its bearing of sediment hosted base metal mineralisation. This project aims to determine the aspects of lithospheric evolution that led to a concentration of giant base metal mineral deposits in the Early to Middle Proterozoic (ca 1.9-1.5 billion years ago). We propose to test three related hypotheses that, if validated, will fundamentally change our view of Proterozoic metallogenesis and the way the mineral industry approaches exploration for these ....Evolution of the Proterozoic lithosphere and its bearing of sediment hosted base metal mineralisation. This project aims to determine the aspects of lithospheric evolution that led to a concentration of giant base metal mineral deposits in the Early to Middle Proterozoic (ca 1.9-1.5 billion years ago). We propose to test three related hypotheses that, if validated, will fundamentally change our view of Proterozoic metallogenesis and the way the mineral industry approaches exploration for these deposits.Read moreRead less
The early evolution of the Earth system from multiple sulfur isotope records of sediments and seafloor mineral systems. This project addresses the early evolution of the Earth system that is one of the most important questions in Earth Sciences. It will use Australia's unique rock record and analytical techniques developed in Australia in collaboration with leading international researchers. The National Research Priority area 'An environmentally sustainable Australia: developing deep Earth reso ....The early evolution of the Earth system from multiple sulfur isotope records of sediments and seafloor mineral systems. This project addresses the early evolution of the Earth system that is one of the most important questions in Earth Sciences. It will use Australia's unique rock record and analytical techniques developed in Australia in collaboration with leading international researchers. The National Research Priority area 'An environmentally sustainable Australia: developing deep Earth resources' will benefit through the development of better exploration models for Archaean submarine metal deposits. Students will obtain a high level understanding of the early Earth system, ore deposits, stable isotope and transition metal geochemistry, which are directly applicable in both pure and applied research and mineral exploration.Read moreRead less
The Role of Water in Precambrian Ultramafic Magmatism: Insights from an In-Situ Microbeam and Nanobeam Assessment of Hydromagmatic Amphibole. Hydromagmatic amphibole in some Precambrian (>600 million years old) komatiites and other ultramafic rocks in Australia, Canada and Russia indicates >3% water in the parental magmas. This magmatic water could be crustal or mantle in origin. Constraints on the water source would profoundly impact concepts of Precambrian crustal evolution and water recycling ....The Role of Water in Precambrian Ultramafic Magmatism: Insights from an In-Situ Microbeam and Nanobeam Assessment of Hydromagmatic Amphibole. Hydromagmatic amphibole in some Precambrian (>600 million years old) komatiites and other ultramafic rocks in Australia, Canada and Russia indicates >3% water in the parental magmas. This magmatic water could be crustal or mantle in origin. Constraints on the water source would profoundly impact concepts of Precambrian crustal evolution and water recycling. The ultimate goal of this project is to provide constraints on the role of water in early Earth magmatism, through in situ microbeam and nanobeam analysis of the amphibole to produce an integrated trace element and isotopic dataset for geologically and chemically diverse types of Precambrian ultramafic rocks.Read moreRead less
Linking the deep carbon cycle with critical mineral deposits. This project aims to determine how the global carbon cycle controlled the occurrence of carbonatites, which provide most of the world’s rare earth elements, using novel methods to improve our understanding of carbonatites and carbon-rich mantle rocks. This project expects to generate new knowledge on how global geodynamic processes, including the supercontinent cycle, influenced carbon recycling and mantle enrichments. This project wi ....Linking the deep carbon cycle with critical mineral deposits. This project aims to determine how the global carbon cycle controlled the occurrence of carbonatites, which provide most of the world’s rare earth elements, using novel methods to improve our understanding of carbonatites and carbon-rich mantle rocks. This project expects to generate new knowledge on how global geodynamic processes, including the supercontinent cycle, influenced carbon recycling and mantle enrichments. This project will have significant economic benefits for targeting economically critical mineral deposits required to transition to a decarbonized world and placing the carbon cycle in a paleogeographic context to understand the climate in deep time.Read moreRead less
Evaluating a biogeochemical mechanism for soil anomaly formation using diffusive thin-film samplers in geochemical exploration. We expect to develop new and effective technology for geochemical exploration for gold and base metals. This technology will take the form of: (i) increased understanding of, and a new conceptual model for, biogeochemical formation of soil geochemical anomalies in transported overburden; (ii) new chemical analysis techniques for soils and groundwater in mineralised area ....Evaluating a biogeochemical mechanism for soil anomaly formation using diffusive thin-film samplers in geochemical exploration. We expect to develop new and effective technology for geochemical exploration for gold and base metals. This technology will take the form of: (i) increased understanding of, and a new conceptual model for, biogeochemical formation of soil geochemical anomalies in transported overburden; (ii) new chemical analysis techniques for soils and groundwater in mineralised areas. Improved models for anomaly formation will provide a clearer frame work for exploration in terrain under transported cover. New methodology has the potential to enhance anomaly detection for buried mineralisation, especially if the anomaly has formed biogeochemically.Read moreRead less