The geochemistry of rare earth elements in carbonate melts. This project aims to determine why deposits of rare earth elements, which are critical for modern devices and technologies such as phones, tablets and plasma screens, are associated with carbonate magmas. The global supply of these critical metals is geopolitically unstable and, although Australia has significant reserves, there is very limited production. By improving our understanding of the geochemical behaviour of the rare earths th ....The geochemistry of rare earth elements in carbonate melts. This project aims to determine why deposits of rare earth elements, which are critical for modern devices and technologies such as phones, tablets and plasma screens, are associated with carbonate magmas. The global supply of these critical metals is geopolitically unstable and, although Australia has significant reserves, there is very limited production. By improving our understanding of the geochemical behaviour of the rare earths this project aims to develop new reverse-engineering methods for their extraction, which will improve the security of supply of these elements and enhance Australia's role in high-tech industries. The project will enhance the profitability of the Australian resources sector through improved extraction economics and will secure the supply of these critical metals for Australian high-tech industries and export. The outcomes will be targeted initially at junior resource companies that are not yet profitable.Read moreRead less
Experimental and empirical insight into melting of the early Earth's mantle. The early Earth's mantle produced melt at much higher temperature than today, creating rocks with unique chemistries and mineralogies. But pressing knowledge gaps about hot mantle melting remain. The aim of this project is to generate new experimental and empirical knowledge to help closing these gaps by:
(i) conducting high pressure experiments to refine phase-composition relationships and element partitioning;
(ii) qu ....Experimental and empirical insight into melting of the early Earth's mantle. The early Earth's mantle produced melt at much higher temperature than today, creating rocks with unique chemistries and mineralogies. But pressing knowledge gaps about hot mantle melting remain. The aim of this project is to generate new experimental and empirical knowledge to help closing these gaps by:
(i) conducting high pressure experiments to refine phase-composition relationships and element partitioning;
(ii) quantifying mineral fabrics in cratonic peridotites to understand the movement of early continents; and
(iii) constructing the first petrological deep time model for greenstone belt volcanic rocks.
The expected outcomes are better models for the early Earth's melting and tectonic regimes and insight into the emergence of land.Read moreRead less
Defining the multi-scale controls on high-grade gold mineralisation. This project aims to improve our understanding of how extremely high-grade gold occurrences form in order to further our understanding of metal transport and accumulation within the Earth’s crust. This project will generate new knowledge in the area of gold geochemistry using novel experimental programs, interdisciplinary approaches and by utilising advanced technologies. Expected outcomes of this project include reducing the ....Defining the multi-scale controls on high-grade gold mineralisation. This project aims to improve our understanding of how extremely high-grade gold occurrences form in order to further our understanding of metal transport and accumulation within the Earth’s crust. This project will generate new knowledge in the area of gold geochemistry using novel experimental programs, interdisciplinary approaches and by utilising advanced technologies. Expected outcomes of this project include reducing the unpredictability of high-grade gold occurrences that impact both production and exploration strategies. This project should benefit the mineral industry partners by helping to discover high grade gold resources which is of great benefit to Australia.Read moreRead less
Maximising accuracy and reliability of carbonate climate proxy archives. This project brings together expertise and cutting-edge methodology from different disciplines to identify the controls on the compositions of the shells and skeletons of marine organisms. The compositions of these materials are essential tools to reconstruct environmental conditions before modern climate records began. However, recent insights into how they form profoundly complicate and affect their interpretations.
The r ....Maximising accuracy and reliability of carbonate climate proxy archives. This project brings together expertise and cutting-edge methodology from different disciplines to identify the controls on the compositions of the shells and skeletons of marine organisms. The compositions of these materials are essential tools to reconstruct environmental conditions before modern climate records began. However, recent insights into how they form profoundly complicate and affect their interpretations.
The results will enable us to develop new, realistic models for the behaviour of chemical elements in these materials. This will significantly improve paleoclimate interpretations and provide critical benefit for protecting Australia’s marine resources in the future. Read moreRead less
Unravelling vanadium biogeochemistry in modern marine sediments. This project aims to unravel the biogeochemistry of vanadium in modern marine sediments for use as a tracer of ancient oxygen concentrations in the oceans of the early Earth. This project will generate fundamental knowledge on the behaviour of vanadium in modern marine sediments by applying advanced analytical tools for imaging its concentration and chemical form at ultra-high resolution. This information is critical for accurate i ....Unravelling vanadium biogeochemistry in modern marine sediments. This project aims to unravel the biogeochemistry of vanadium in modern marine sediments for use as a tracer of ancient oxygen concentrations in the oceans of the early Earth. This project will generate fundamental knowledge on the behaviour of vanadium in modern marine sediments by applying advanced analytical tools for imaging its concentration and chemical form at ultra-high resolution. This information is critical for accurate interpretation of the geological record to infer the oxygen concentration of the oceans at various points in Earth's history. This interdisciplinary project will facilitate strong collaboration between Australian and Danish researchers in the field of marine geochemistry and paleoceanography.Read moreRead less
Mapping mineral systems of deep Australia. We aim at enabling mineral resource discoveries by calibrating geophysical surveys using geochemical and petrophysical properties measured on mantle samples brought to the surface by recent volcanoes. National geophysical surveys deliver images of geophysical gradients in the deeper part of the Australian continent. The interpretation of these gradients in geological terms and in terms of economic mineral systems is the key to unlock deep exploration su ....Mapping mineral systems of deep Australia. We aim at enabling mineral resource discoveries by calibrating geophysical surveys using geochemical and petrophysical properties measured on mantle samples brought to the surface by recent volcanoes. National geophysical surveys deliver images of geophysical gradients in the deeper part of the Australian continent. The interpretation of these gradients in geological terms and in terms of economic mineral systems is the key to unlock deep exploration success. This project will turn Australia’s investment in National geophysical surveys into new discoveries of base metals. The benefit stems from enabling the transition to a clean economy which requires a much broader range of critical minerals and a larger quantity of base metals.Read moreRead less
Constraining conditions and timing of orogeny and reworking in the west Musgrave Province. The remote Musgrave Province is one of Australia's prime areas of mineral exploration interest, with about 30 companies holding more than 120 leases over the region. A major factor determining the economic prospectivity of a terrane is the availability of high quality geoscientific data. This project will produce pre-competitive structural, petrological, isotopic, geochemical and geophysical datasets for t ....Constraining conditions and timing of orogeny and reworking in the west Musgrave Province. The remote Musgrave Province is one of Australia's prime areas of mineral exploration interest, with about 30 companies holding more than 120 leases over the region. A major factor determining the economic prospectivity of a terrane is the availability of high quality geoscientific data. This project will produce pre-competitive structural, petrological, isotopic, geochemical and geophysical datasets for the west Musgrave Province that will rival or surpass that available for other regions of Australian crust. This project directly aligns with the National Research Priority goal, developing deep Earth resources, and will reduce the risk to mineral explorers and facilitate economic development within the Ngaanyatjarra Native Title Lands of Western Australia.Read moreRead less
The copper-gold fertility of mountain belts. This project aims to identify the timing of, and understand the causes of, sulphide saturation in granitic suites to test the hypothesis that sulphide saturation controls the fertility of copper-gold deposits. More than half of the world’s copper and gold comes from granitic rocks, but most granitic suites are barren. As copper-gold deposits become increasingly difficult to find, and exploration budgets have been slashed, it is critical to reliably di ....The copper-gold fertility of mountain belts. This project aims to identify the timing of, and understand the causes of, sulphide saturation in granitic suites to test the hypothesis that sulphide saturation controls the fertility of copper-gold deposits. More than half of the world’s copper and gold comes from granitic rocks, but most granitic suites are barren. As copper-gold deposits become increasingly difficult to find, and exploration budgets have been slashed, it is critical to reliably distinguish ore bearing from barren systems. Platinum group element geochemistry could make this distinction by pinpointing the timing of sulphide saturation in evolving magma systems. Eliminating barren suites as exploration targets will save Australia’s exploration dollars which can be directed to where the prospects of success are greatest.Read moreRead less
Experiments to quantify the geochemical behaviour of the precious metals. This project aims to measure the high-temperature geochemical properties of the precious metals, which include gold, silver and the platinum group elements. The measurements are needed to quantify the partitioning of the precious metals between silicate melts and metal or sulfide, which would enable their distinctive geochemical properties to be applied to the testing of current hypotheses on how Earth formed, the composit ....Experiments to quantify the geochemical behaviour of the precious metals. This project aims to measure the high-temperature geochemical properties of the precious metals, which include gold, silver and the platinum group elements. The measurements are needed to quantify the partitioning of the precious metals between silicate melts and metal or sulfide, which would enable their distinctive geochemical properties to be applied to the testing of current hypotheses on how Earth formed, the composition of Earth's mantle through time, the relationship of Earth to the Moon, and the evolution of magmatic systems to form copper-gold deposits. The measurements have become feasible due to newly developed experimental and analytical methods, which avoid the problems that have bedevilled previous attempts.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL130100066
Funder
Australian Research Council
Funding Amount
$3,187,712.00
Summary
Understanding the Earth: a perspective from the science of advanced materials. The study of the properties of naturally occurring minerals and magmas under extreme conditions of high temperature and pressure is needed, for understanding the geological processes responsible for our mineral wealth. The same methods can also lead to improved design of new materials required for technological applications.