Metamorphism, fluid flow, anatexis and the petrogenesis of peraluminous magmas: constraints from boron and lithium elemental and isotopic geochemistry. Boron (B) and lithium (Li) elemental and isotopic variations are sensitive monitors of metamorphism, fluid flow and melting; the generation of granites; and hydrothermal alteration. However, in detail B- and Li- geochemistry are poorly understood. This project uses field-based, analytical and experimental techniques to constrain B and Li elementa ....Metamorphism, fluid flow, anatexis and the petrogenesis of peraluminous magmas: constraints from boron and lithium elemental and isotopic geochemistry. Boron (B) and lithium (Li) elemental and isotopic variations are sensitive monitors of metamorphism, fluid flow and melting; the generation of granites; and hydrothermal alteration. However, in detail B- and Li- geochemistry are poorly understood. This project uses field-based, analytical and experimental techniques to constrain B and Li elemental and stable isotope variations in order to better understand high-temperature metamorphism, fluid flow, melting and the generation of granites and pegmatites. The results of this project will greatly increase our understanding of B and Li systematics in high-temperature crustal environments, and have implications for a range of metamorphic and igneous processes.Read moreRead less
Melting in the Earth and the origin of basalts. This project aims to investigate and link the many studies of natural basalts to better understand Earth’s global tectonics and mineral resources. Much of our knowledge of the deep Earth’s history comes from studying the melting of the mantle to produce basaltic magma. This project will investigate experimentally at high temperatures and pressures, link studies of natural basalts with melting processes in simplified chemical systems. The expected o ....Melting in the Earth and the origin of basalts. This project aims to investigate and link the many studies of natural basalts to better understand Earth’s global tectonics and mineral resources. Much of our knowledge of the deep Earth’s history comes from studying the melting of the mantle to produce basaltic magma. This project will investigate experimentally at high temperatures and pressures, link studies of natural basalts with melting processes in simplified chemical systems. The expected outcome is a comprehensive model for the origin of basalts on Earth and in other rocky planets, which will establish the framework for the geochemical cycles of the elements and lead to a better understanding of mineral resources.Read moreRead less
Mantle evolution and the origin of Earth's atmosphere. This project aims to investigate Earth’s early evolution and the origin of our atmosphere. Using state-of-the-art instrumentation the project will measure noble gas and tungsten isotopes in unique volcanic glasses that record the composition of the Earth’s mantle. These measurements are expected to clarify the relationship between the formation of Earth’s atmosphere, mantle and core, and to generate new knowledge about convective currents ....Mantle evolution and the origin of Earth's atmosphere. This project aims to investigate Earth’s early evolution and the origin of our atmosphere. Using state-of-the-art instrumentation the project will measure noble gas and tungsten isotopes in unique volcanic glasses that record the composition of the Earth’s mantle. These measurements are expected to clarify the relationship between the formation of Earth’s atmosphere, mantle and core, and to generate new knowledge about convective currents in the modern mantle. The project aims to train the next generation of Earth scientists and to provide new knowledge to assist in overcoming the challenges in mitigating climate change and sustaining a resource-based economy.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
Global Scale Cycling of Noble Gases and Halogens. A novel approach for combined measurement of halogens and noble gases will be used to provide the first constraints on the concentrations of these elements in key reservoirs within subduction zones. The data will revolutionise our understanding of how noble gases and halogens transfer between the Earth's atmosphere and mantle, which has profound implications for our planet's origin and evolution. In addition, the study will provide practical info ....Global Scale Cycling of Noble Gases and Halogens. A novel approach for combined measurement of halogens and noble gases will be used to provide the first constraints on the concentrations of these elements in key reservoirs within subduction zones. The data will revolutionise our understanding of how noble gases and halogens transfer between the Earth's atmosphere and mantle, which has profound implications for our planet's origin and evolution. In addition, the study will provide practical information about how economically important hydrothermal ore deposits form on the seafloor and it will test models for orogenic gold mineralisation. Read moreRead less
Identifying the secular evolution of chemical heterogeneity in the mantle as probed by deep mantle plumes. This project aims to focus on modes and timescales of melting associated with deep mantle plumes. These melts form massive magmatic bodies and volcanic flood basalt provinces throughout Earth’s history and record the secular chemical evolution of the Earth’s mantle. Selective igneous bodies contain high-grade noble metal deposits and coincide with global mass extinction linked to anoxic oce ....Identifying the secular evolution of chemical heterogeneity in the mantle as probed by deep mantle plumes. This project aims to focus on modes and timescales of melting associated with deep mantle plumes. These melts form massive magmatic bodies and volcanic flood basalt provinces throughout Earth’s history and record the secular chemical evolution of the Earth’s mantle. Selective igneous bodies contain high-grade noble metal deposits and coincide with global mass extinction linked to anoxic ocean events in response to atmospheric volcanic pollution. This project aims to provide knowledge of planetary surface evolution in response to mantle dynamics, place constraints on enrichment processes of metals in ore quality in plume-derived melts, and may help understandings of the relation between massive volcanic eruptions and climate variability.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100103
Funder
Australian Research Council
Funding Amount
$547,000.00
Summary
Australian Virtual Experimental Laboratory: a multimode geoscience facility. Australian virtual experimental laboratory: a multimode geoscience facility:
This project aims to establish seven types of high-pressure equipment to form a multi-node experimental laboratory at four locations across Australia. Experiments conducted at the high pressures and temperatures of the internal Earth form the basis of our knowledge about the physical and chemical processes that drive geological processes such ....Australian Virtual Experimental Laboratory: a multimode geoscience facility. Australian virtual experimental laboratory: a multimode geoscience facility:
This project aims to establish seven types of high-pressure equipment to form a multi-node experimental laboratory at four locations across Australia. Experiments conducted at the high pressures and temperatures of the internal Earth form the basis of our knowledge about the physical and chemical processes that drive geological processes such as plate tectonics, melting to form volcanoes, and the formation and movement of fluids that concentrate precious metals into valuable ore deposits. The new facility may enable major advances in fields such as mantle geodynamics and element transport in fluids, improving our understanding of internal Earth processes and ore deposit formation and location. It also includes portable systems, which can be used in synchrotron applications.Read moreRead less
Volatile recycling at the crust-mantle interface: Evidence from halogens and noble gases in deep-crustal fluids. 1) The technique proposed for this study is of proven interest to the mineral exploration industry. This project will: i) increase knowledge of the deep-crustal fluids often implicated in giant hydrothermal ore deposits; and ii) develop laser ablation, which will increase the techniques applicability to Australia's oldest ore deposits. These outcomes will further benefit the mineral e ....Volatile recycling at the crust-mantle interface: Evidence from halogens and noble gases in deep-crustal fluids. 1) The technique proposed for this study is of proven interest to the mineral exploration industry. This project will: i) increase knowledge of the deep-crustal fluids often implicated in giant hydrothermal ore deposits; and ii) develop laser ablation, which will increase the techniques applicability to Australia's oldest ore deposits. These outcomes will further benefit the mineral exploration industry.
2) The experimental data can be applied to testing the long-term storage of CO2 by geo-sequestration.
3) The proposed research is extremely topical and will be presented at international conferences and in high impact journals raising the profile of Australian science. Read moreRead less
ARC Centre of Excellence - in Ore Deposits. Australia's minerals industry faces a two-fold challenge - to find new ore deposits and to mine them with maximum efficiency and minimal environmental impact. Those challenges demand a new generation of focused ore deposit research, tailored specifically for the Australian context. The Centre of Excellence in Ore Deposits will provide the foundation of fundamental research required by a successful, efficient and sustainable Australian minerals industry ....ARC Centre of Excellence - in Ore Deposits. Australia's minerals industry faces a two-fold challenge - to find new ore deposits and to mine them with maximum efficiency and minimal environmental impact. Those challenges demand a new generation of focused ore deposit research, tailored specifically for the Australian context. The Centre of Excellence in Ore Deposits will provide the foundation of fundamental research required by a successful, efficient and sustainable Australian minerals industry. The Centre will also play a leading role in the undergraduate and postgraduate training of future geoscientists. The concentration of internationally recognised researchers in the Centre will ensure it maintains its premier position in the international ore deposit research arena.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882854
Funder
Australian Research Council
Funding Amount
$6,000,000.00
Summary
Australian Membership of the Integrated Ocean Drilling Program. Membership of the Integrated Ocean Drilling Program (IODP) will provide high-leverage access to the largest, and most effective international geoscience program.
Results from drilling within Australia's marine jurisdiction will give understanding of the oceans' state under past climates through high resolution records of the range of oceanographic and biological responses to climate change, the role of the deep biosphere in shapin ....Australian Membership of the Integrated Ocean Drilling Program. Membership of the Integrated Ocean Drilling Program (IODP) will provide high-leverage access to the largest, and most effective international geoscience program.
Results from drilling within Australia's marine jurisdiction will give understanding of the oceans' state under past climates through high resolution records of the range of oceanographic and biological responses to climate change, the role of the deep biosphere in shaping oil and gas deposits, hydrothermal and igneous processes involved in ore genesis, and enhanced understanding of some of the world's largest earthquake- and tsunami-generating processes.
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