Marine Geological Investigation of the Naturaliste Plateau and Diamantina Zone - the tectono-magmatic development of a non-volcanic passive margin. Australia's continental margins impact enormously on our major industries including tourism, hydrocarbon production and fisheries, and are particularly significant with respect to biodiversity and hazard planning (both long and short term), yet knowledge of the seafloor of our margins is desperately poor. To contribute to alleviating this problem, we ....Marine Geological Investigation of the Naturaliste Plateau and Diamantina Zone - the tectono-magmatic development of a non-volcanic passive margin. Australia's continental margins impact enormously on our major industries including tourism, hydrocarbon production and fisheries, and are particularly significant with respect to biodiversity and hazard planning (both long and short term), yet knowledge of the seafloor of our margins is desperately poor. To contribute to alleviating this problem, we will use the R/V Southern Surveyor research vessel to produce swath mapping imagery and dredge samples from the seafloor of a geologically fascinating part of the southern section of the Western Australian margin dominated by the Naturaliste Plateau and Diamantina Zone. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100141
Funder
Australian Research Council
Funding Amount
$420,000.00
Summary
High-resolution ITRAX XRF core scanning facility for global change research. This facility will enable researchers to obtain high-resolution geochemical profiles in the study of environmental change and climate variability. It will provide archive data on the variation of density and chemical element composition along sediment and soil cores, rock cores, wood samples, speleothems and corals. These archives contain important information such as human activity, climate variability, water quality c ....High-resolution ITRAX XRF core scanning facility for global change research. This facility will enable researchers to obtain high-resolution geochemical profiles in the study of environmental change and climate variability. It will provide archive data on the variation of density and chemical element composition along sediment and soil cores, rock cores, wood samples, speleothems and corals. These archives contain important information such as human activity, climate variability, water quality changes, pollution histories, recent geomorphological change, land-use change, introduction of invasive species and the occurrence of bushfires. A better understanding of the occurrence and timing of these major environmental issues is of national and regional importance.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100107
Funder
Australian Research Council
Funding Amount
$400,000.00
Summary
Purchase of a multi-purpose Schottky field emission gun scanning electron microscope. Scanning electron microscopy is a basic analytical tool for imaging surfaces of natural and synthetic materials and identification of nanometre-scale features and their compositions. At the University of Tasmania, it supports four of our six designated priority research themes: Antarctic and Marine Studies, Environment, Frontier Technologies, and Sustainable Primary Production. Our research depending on this te ....Purchase of a multi-purpose Schottky field emission gun scanning electron microscope. Scanning electron microscopy is a basic analytical tool for imaging surfaces of natural and synthetic materials and identification of nanometre-scale features and their compositions. At the University of Tasmania, it supports four of our six designated priority research themes: Antarctic and Marine Studies, Environment, Frontier Technologies, and Sustainable Primary Production. Our research depending on this technique includes many fundamental and applied topics from a wide range of disciplines, such as developing portable detection devices for explosives, finding more efficient and sustainable ways to explore for ore, investigating the effects of climate change on marine ecosystems and improving salinity and drought tolerance of crops.Read moreRead less
The role of melting of oceanic crust within the subduction factory: A melt inclusion approach. Continental crust is ultimately generated in subduction zones, where oceanic crust is recycled back into the mantle along deep ocean trenches, producing island arcs. Processes occurring in the subduction 'factory' are poorly understood, but dehydration of old subducted oceanic crust is usually invoked to provide water that triggers mantle melting and arc magmatism. Evidence is accumulating that in many ....The role of melting of oceanic crust within the subduction factory: A melt inclusion approach. Continental crust is ultimately generated in subduction zones, where oceanic crust is recycled back into the mantle along deep ocean trenches, producing island arcs. Processes occurring in the subduction 'factory' are poorly understood, but dehydration of old subducted oceanic crust is usually invoked to provide water that triggers mantle melting and arc magmatism. Evidence is accumulating that in many locations the subducted oceanic crust may melt, rather than simply dehydrate. I will test this using studies of melt inclusions (droplets of melt trapped by crystals growing in the magma), and will better constrain the input-output budgets of the subduction factory.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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Tectonic paradox of the E margin of the Australian plate, 120 - 45 Ma. Available geological evidence indicates that massive extension of continental crust occurred from 120-45 million years ago at the eastern margin of the Australian plate. In contrast, global plate movement models indicate that there was convergence between the Pacific and Australian plates, implying subduction and island arc magmatism. We propose a marine research expedition to dredge rocks from scarps of the submarine ridges ....Tectonic paradox of the E margin of the Australian plate, 120 - 45 Ma. Available geological evidence indicates that massive extension of continental crust occurred from 120-45 million years ago at the eastern margin of the Australian plate. In contrast, global plate movement models indicate that there was convergence between the Pacific and Australian plates, implying subduction and island arc magmatism. We propose a marine research expedition to dredge rocks from scarps of the submarine ridges east of Australia. Geochemical signatures and dating of the dredged rocks should elucidate the geological evolution of this region, improve our understanding of eastern Australian geology, and better define Australia's Maritime Jurisdiction Zone along the eastern seaboard.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0347677
Funder
Australian Research Council
Funding Amount
$750,000.00
Summary
An electron probe microanalysis system to replace an existing 14 year-old instrument. Compositional data determined on inorganic materials by electron microprobe analysis (EPMA) underpins a considerable amount research in Earth/planetary sciences. Spots down to 2/1000mm may be analysed quantitatively for major elements and some trace elements with an accuracy of <1%, and digital composition maps of the elemental spatial distribution can be generated. Increasing downtime on the 14 year-old UTasma ....An electron probe microanalysis system to replace an existing 14 year-old instrument. Compositional data determined on inorganic materials by electron microprobe analysis (EPMA) underpins a considerable amount research in Earth/planetary sciences. Spots down to 2/1000mm may be analysed quantitatively for major elements and some trace elements with an accuracy of <1%, and digital composition maps of the elemental spatial distribution can be generated. Increasing downtime on the 14 year-old UTasmania microprobe, coupled with diverse new and exciting applications in ore deposit research, environmental geoscience and geochronology force us to seek funds to replace the existing EPMA facility, which has logged ~101,000 hours of use involving ~250 researchers, and produced more than 500 refereed papers.Read moreRead less
Unmixing in Magmas: Melt and Fluid Inclusion Constraints on Identity, Timing, and Evolution of Immiscible Fluids, Salt and Sulphide Melts. Much of the research proposed herein genuinely breaks new ground in both the fields of igneous petrology and ore deposit geology. It will contribute to Australia maintaining a leading role (as identified in "Towards 2005 - a prospectus for research and training in the Australian Earth sciences") in the burgeoning field of melt inclusion research, and serve as ....Unmixing in Magmas: Melt and Fluid Inclusion Constraints on Identity, Timing, and Evolution of Immiscible Fluids, Salt and Sulphide Melts. Much of the research proposed herein genuinely breaks new ground in both the fields of igneous petrology and ore deposit geology. It will contribute to Australia maintaining a leading role (as identified in "Towards 2005 - a prospectus for research and training in the Australian Earth sciences") in the burgeoning field of melt inclusion research, and serve as a training base for young researchers keen to learn the techniques and methodologies involved. The possible outcomes of the project are of wide interest to geoscientists, and may benefit the Australian economy in that they help to predict whether the magmas have experienced exsolution of a metal-rich fluid.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989828
Funder
Australian Research Council
Funding Amount
$245,000.00
Summary
An X-ray fluorescence analysis system to replace an existing 16 year old instrument. X-ray fluorescence spectrometry is a basic analytical tool for the accurate and precise determination of the chemical composition of rock samples. Access to this technology is essential for the successful operation of the ARC Centre of Excellence in Ore Deposits. The Centre undertakes cutting-edge research on the geology, genesis, discovery and recovery of new mineral resources and equipping the Australian miner ....An X-ray fluorescence analysis system to replace an existing 16 year old instrument. X-ray fluorescence spectrometry is a basic analytical tool for the accurate and precise determination of the chemical composition of rock samples. Access to this technology is essential for the successful operation of the ARC Centre of Excellence in Ore Deposits. The Centre undertakes cutting-edge research on the geology, genesis, discovery and recovery of new mineral resources and equipping the Australian minerals industry with world-class graduates. These activities are within National Research Priorities ((An Environmentally Sustainable Australia - Discovering Deep Earth Resources) and at the core of Australian national interests.Read moreRead less
Active Ice-Shelf Rift Systems on the Amery Ice Shelf, East Antarctica. Our work will inform the public on how the Antarctic might contribute to global sea level rise, e.g., are current iceberg production rates accelerating and causing inland ice to flow into the sea more rapidly? Furthermore, a greater understanding of the important Earth systems, including the ocean-ice-atmosphere system, is important to a society contemplating the responsibilities of stewardship of the planet as we move into t ....Active Ice-Shelf Rift Systems on the Amery Ice Shelf, East Antarctica. Our work will inform the public on how the Antarctic might contribute to global sea level rise, e.g., are current iceberg production rates accelerating and causing inland ice to flow into the sea more rapidly? Furthermore, a greater understanding of the important Earth systems, including the ocean-ice-atmosphere system, is important to a society contemplating the responsibilities of stewardship of the planet as we move into the era of potentially profound effects from global climate change.Read moreRead less