ARC Centre of Excellence for Core to Crust Fluid Systems. Water is essential for human existence, indeed for life's beginning. The circulation of water between the surface and the deep interior lubricates the internal dynamics that keep Earth geologically alive; it is crucial to most Earth systems, including the evolution of the hydrospher/atmosphere/biosphere, and the development of giant ore deposits. However, the origin, abundance, speciation and movements of fluids inside Earth are largely u ....ARC Centre of Excellence for Core to Crust Fluid Systems. Water is essential for human existence, indeed for life's beginning. The circulation of water between the surface and the deep interior lubricates the internal dynamics that keep Earth geologically alive; it is crucial to most Earth systems, including the evolution of the hydrospher/atmosphere/biosphere, and the development of giant ore deposits. However, the origin, abundance, speciation and movements of fluids inside Earth are largely unknown, and represent key issues in modern geoscience. This CoE will integrate previously disparate fields - geology, tectonics, geochemistry, petrophysics, geophysics and dynamic modelling - to understand the workings of Earth's deep plumbing system.Read moreRead less
Roles of deep-Earth fluid cycling in the generation of intra-continental magmatism. This project aims to test a provocative and potentially ground-breaking hypothesis that fluid released from subducted oceanic slabs and stored in the mantle transition zone, may trigger or control some major intra-plate geotectonic phenomena. It aims to provide a self-consistent model that links geological processes occurring at plate boundaries with those far-field effects well away from plate boundaries via dee ....Roles of deep-Earth fluid cycling in the generation of intra-continental magmatism. This project aims to test a provocative and potentially ground-breaking hypothesis that fluid released from subducted oceanic slabs and stored in the mantle transition zone, may trigger or control some major intra-plate geotectonic phenomena. It aims to provide a self-consistent model that links geological processes occurring at plate boundaries with those far-field effects well away from plate boundaries via deep-Earth fluid cycling. The outcomes of this project aim to help to better understand links between plume and plate tectonic processes in the first-order dynamic system of Earth, and identify ways to improve success in future mineral exploration.Read moreRead less
Unravelling how aquatic coastal networks regulate nitrogen removal . The aim of this project is to determine the nitrogen removal pathways of the coastal zone using a number of innovative field and modelling approaches. Little is known about how the complex coastal landscape controls trade-offs that maximise nitrogen removal but minimise nitrous oxide (a potent greenhouse gas) emissions. The outcomes of this study will significantly advance our understanding of the coastal zone in regional and g ....Unravelling how aquatic coastal networks regulate nitrogen removal . The aim of this project is to determine the nitrogen removal pathways of the coastal zone using a number of innovative field and modelling approaches. Little is known about how the complex coastal landscape controls trade-offs that maximise nitrogen removal but minimise nitrous oxide (a potent greenhouse gas) emissions. The outcomes of this study will significantly advance our understanding of the coastal zone in regional and global nitrogen budgets. This will provide significant benefits such as a new science-based quantitative framework to facilitate best practice management to reduce terrestrial nitrogen loads and associated downstream impacts such as eutrophication, and reduce nitrous oxide emissions and associated global warming.
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Unravelling the drivers of greenhouse gas emissions in estuaries. The aim of this project is to understand and quantify the factors controlling the emission of carbon dioxide, methane and nitrous oxide from estuaries. Coastal systems play a disproportionately large role in the global emissions of greenhouse gases, but this is poorly quantified. The project plans to use a combination of continuous concentration and stable isotope measurements, process measurements and advanced numerical modelling ....Unravelling the drivers of greenhouse gas emissions in estuaries. The aim of this project is to understand and quantify the factors controlling the emission of carbon dioxide, methane and nitrous oxide from estuaries. Coastal systems play a disproportionately large role in the global emissions of greenhouse gases, but this is poorly quantified. The project plans to use a combination of continuous concentration and stable isotope measurements, process measurements and advanced numerical modelling across a range of undisturbed to disturbed systems. It is intended that this project will provide information for conceptualising, calibrating and verifying models, including green-house gas production. Good models, and the data that support them, such as that provided by this study, are critical for the efficient allocation of management resources in Australian coastal systems, including by our partners. The findings from this project will have direct implications to the management, rehabilitation and protection of waterways (including biodiversity) in Australia.Read moreRead less
Chronostratigraphic, molecular and isotopic approaches to age petroleum. The project aims to reduce the costs of drilling in deep-water offshore by better identifying potential drilling sites. The North-West shelf offshore Australia is the main supplier of liquefied natural gas. However, there is uncertainty about the age of petroleum (oil and gas) discovered in the region. It is not currently possible to constrain an age of fluids to a number of source rocks. The aims are to develop a high-leve ....Chronostratigraphic, molecular and isotopic approaches to age petroleum. The project aims to reduce the costs of drilling in deep-water offshore by better identifying potential drilling sites. The North-West shelf offshore Australia is the main supplier of liquefied natural gas. However, there is uncertainty about the age of petroleum (oil and gas) discovered in the region. It is not currently possible to constrain an age of fluids to a number of source rocks. The aims are to develop a high-level age discriminative tool for fluids. An interdisciplinary approach will be applied using state-of-the-art techniques including comprehensive two dimensional gas chromatography time-of-flight mass spectrometry, compound specific isotope analysis of hydrocarbons, clumped isotopes of methane and metagenomics.Read moreRead less
Advancing Mineral Exploration Models for Orogenic Gold Deposits. This interdisciplinary project links geochemistry with crustal-scale fluid migration, aiming to improve mineral exploration success for orogenic gold deposits. In doing so, it intends to provide a more holistic view of gold deposit genesis. This project plans to focus on the Victorian goldfields, which have world-class historic gold production, an existing seismic transect, and a geologic setting that will address key problems in g ....Advancing Mineral Exploration Models for Orogenic Gold Deposits. This interdisciplinary project links geochemistry with crustal-scale fluid migration, aiming to improve mineral exploration success for orogenic gold deposits. In doing so, it intends to provide a more holistic view of gold deposit genesis. This project plans to focus on the Victorian goldfields, which have world-class historic gold production, an existing seismic transect, and a geologic setting that will address key problems in gold deposit genesis. A series of modelling techniques will be used to marry structural and geochemical aspects of gold deposit formation at a scale that has not been previously attempted.Read moreRead less
Hidden geochemical treasure: apatite inclusions in zircon. This project aims to undertake high precision measurements of the isotopic composition of tiny apatite inclusions in the mineral zircon. This project will create a new isotopic data set to combine with age and isotope data for the host zircons in order to study the formation and evolution of the Earth's crust. Primary apatite inclusions represent a previously untapped treasury of pristine geochemical information made accessible by the la ....Hidden geochemical treasure: apatite inclusions in zircon. This project aims to undertake high precision measurements of the isotopic composition of tiny apatite inclusions in the mineral zircon. This project will create a new isotopic data set to combine with age and isotope data for the host zircons in order to study the formation and evolution of the Earth's crust. Primary apatite inclusions represent a previously untapped treasury of pristine geochemical information made accessible by the latest advances in micro-analytical and imaging technology. This information will be used to test models for the timing of formation of the first continents, to map continental growth over time, and to evaluate the origins of the Earth's oldest rocks and minerals and the environmental conditions on the early Earth.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100219
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
A modern, high-tech mineral separation facility for geochemistry and isotope science. This project will support geoscience research in Western Australia that incorporates a new conservative way of fragmenting rocks to their constituent grains. The facility will provide mineral samples for discovery science and for applied research for the minerals and petroleum industries.