Hydrogen generation by subsurface iron mineral transformations. Aim
The aim of this project is to elucidate key factors responsible for natural hydrogen generation in Australian subsurface environments.
Significance
Large amounts of this valuable resource are produced naturally with estimates of production rates of this “gold” hydrogen at least 100 times the annual demand for this critical resource.
Expected Outcomes
Based on improved understanding of the source of natural hydrogen, predictive ....Hydrogen generation by subsurface iron mineral transformations. Aim
The aim of this project is to elucidate key factors responsible for natural hydrogen generation in Australian subsurface environments.
Significance
Large amounts of this valuable resource are produced naturally with estimates of production rates of this “gold” hydrogen at least 100 times the annual demand for this critical resource.
Expected Outcomes
Based on improved understanding of the source of natural hydrogen, predictive tools will be developed that will assist in assessing the viability in Australia of hydrogen exploration and engineered retrieval.
Benefits
Ready access to naturally produced hydrogen could enable Australia to replace hydrogen that is currently generated via the use of unabated hydrocarbons.Read moreRead less
East Antarctica: subglacial heat flux constraints for ice sheet modelling. This project aims to quantify the heat flux from the East Antarctic continent into the base of the ice sheet via the derivation of a large geochemical database, together with elevation-based modelling and new heat flux measurements in regions formerly contiguous with East Antarctica. This subglacial heat flux is poorly constrained in current ice sheet models, but directly affects ice sheet behaviour. The output of this pr ....East Antarctica: subglacial heat flux constraints for ice sheet modelling. This project aims to quantify the heat flux from the East Antarctic continent into the base of the ice sheet via the derivation of a large geochemical database, together with elevation-based modelling and new heat flux measurements in regions formerly contiguous with East Antarctica. This subglacial heat flux is poorly constrained in current ice sheet models, but directly affects ice sheet behaviour. The output of this project will be a greatly improved heat flux map for East Antarctica that can be used in ice sheet modelling studies. This should drive significant improvement in models for the evolution of the East Antarctic Ice Sheet, resulting in more accurate projections of ice discharge and associated sea level change.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE240100039
Funder
Australian Research Council
Funding Amount
$470,000.00
Summary
Advanced HR-ICP-MS facility for marine, Antarctic and environmental samples. This proposal seeks support for a shared High Resolution Inductively Coupled Plasma Mass Spectrometry facility for Tasmanian researchers. The existing UTAS instrument is approaching end-of-life and is becoming increasingly unreliable. Access to enhanced capabilities embodied in a rejuvenated facility, along with a renewed lifespan, is essential for continued analysis of ultra-trace elements and isotopes in challenging s ....Advanced HR-ICP-MS facility for marine, Antarctic and environmental samples. This proposal seeks support for a shared High Resolution Inductively Coupled Plasma Mass Spectrometry facility for Tasmanian researchers. The existing UTAS instrument is approaching end-of-life and is becoming increasingly unreliable. Access to enhanced capabilities embodied in a rejuvenated facility, along with a renewed lifespan, is essential for continued analysis of ultra-trace elements and isotopes in challenging samples from southern environments. The new instrument will allow TAS researchers and their (inter)national collaborators to undertake world-leading research, enhancing competitive profiles in a diverse range of research areas (oceanography, analytical chemistry, Antarctic studies, environmental assessment, geochemistry). Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240100068
Funder
Australian Research Council
Funding Amount
$417,237.00
Summary
Original metal-based catalysts for enzyme-inspired CO2 activation. The chemical utilisation of CO2 is one of two major strategies in achieving net negative CO2 emissions mitigating the environmental and socioeconomic damage of global warming. Inspired by the ability of natural enzymes to efficiently utilise molecules like CO2, this project aims to develop original metal-based catalysts as enzyme mimics for the efficient transformation of CO2. It will deliver practical strategies to transform CO2 ....Original metal-based catalysts for enzyme-inspired CO2 activation. The chemical utilisation of CO2 is one of two major strategies in achieving net negative CO2 emissions mitigating the environmental and socioeconomic damage of global warming. Inspired by the ability of natural enzymes to efficiently utilise molecules like CO2, this project aims to develop original metal-based catalysts as enzyme mimics for the efficient transformation of CO2. It will deliver practical strategies to transform CO2 into value-added materials permanently removing it from the atmosphere. Project outcomes are expected to enhance industry’s capacity to use CO2 as a feedstock chemical for the production of fuels and materials, providing significant economic and environmental benefits through CO2 upcycling and recycling.Read moreRead less
Diatom lipids to reveal sea-ice history in remote Antarctic regions. This project aims to understand seasonal Antarctic sea-ice extent using molecular, geochemical, elemental and genomic characteristics of specific marine phytoplankton (diatoms). Little is known of the seasonal sea-ice variation and the position of the summer sea-ice extent a million years before satellite records, but this information is critical to determining air-sea gas exchange and ecosystem food web regulation. This projec ....Diatom lipids to reveal sea-ice history in remote Antarctic regions. This project aims to understand seasonal Antarctic sea-ice extent using molecular, geochemical, elemental and genomic characteristics of specific marine phytoplankton (diatoms). Little is known of the seasonal sea-ice variation and the position of the summer sea-ice extent a million years before satellite records, but this information is critical to determining air-sea gas exchange and ecosystem food web regulation. This project will unite geochemical and biological approaches to provide the data to improve past Antarctic ecosystem and climate models where sea-ice data is missing. Studying diatom biomarkers in deep sea cores from Australia’s Southern Ocean will redefine knowledge of Antarctic climate and provide data necessary to improve global ecosystem and climate models.Read moreRead less
Using the last glacial cycle to understand carbon-climate feedbacks . This project aims to investigate how the ocean’s carbon cycle will respond to anthropogenic climate change by examining its response to past climate variability. The project expects to generate new records of the dust feedback cycle and the microbial decomposition feedback cycle in the poorly studied Indian sector of the Southern Ocean. Expected outcomes include new datasets to test climate models, and a new method to detect t ....Using the last glacial cycle to understand carbon-climate feedbacks . This project aims to investigate how the ocean’s carbon cycle will respond to anthropogenic climate change by examining its response to past climate variability. The project expects to generate new records of the dust feedback cycle and the microbial decomposition feedback cycle in the poorly studied Indian sector of the Southern Ocean. Expected outcomes include new datasets to test climate models, and a new method to detect temperature-driven changes in microbial decomposition. This should lead to significant benefits including more accurate estimates of how much carbon humanity can safely emit, and the science to inform whether Australia should adopt ocean fertilisation as a strategy to combat climate change. Read moreRead less
A detrital apatite archive to track crustal growth. This project will establish apatite as a new tool to study the evolution of the continental crust. The crust shaped the composition of the atmosphere and the oceans with consequences for the evolution of life through the availability of oxygen and nutrients. However, when and how the continental crust was generated remains a core question. Current models for continental crust development rely on the mineral zircon. However, zircons only record ....A detrital apatite archive to track crustal growth. This project will establish apatite as a new tool to study the evolution of the continental crust. The crust shaped the composition of the atmosphere and the oceans with consequences for the evolution of life through the availability of oxygen and nutrients. However, when and how the continental crust was generated remains a core question. Current models for continental crust development rely on the mineral zircon. However, zircons only record the history of evolved rocks. To address this bias we will use the mineral apatite which forms in less evolved rocks. We will develop a detrital apatite database of Pb-Nd (model) ages and integrate this with the zircon record to provide a more holistic description for how our planet developed.Read moreRead less
Novel isotope techniques to explore the Centralian Superbasin, Australia. This project will leverage new advances in analytical instrumentation and isotope techniques to generate improved geochronological and stratigraphic framework for the Centralian Superbasin, a vast ancient depositional system covering much of central Australia. The project aims to apply novel laser-based dating of sedimentary rocks, coupled with metal isotope proxy reconstructions of the basin’s palaeogeography, hydrologica ....Novel isotope techniques to explore the Centralian Superbasin, Australia. This project will leverage new advances in analytical instrumentation and isotope techniques to generate improved geochronological and stratigraphic framework for the Centralian Superbasin, a vast ancient depositional system covering much of central Australia. The project aims to apply novel laser-based dating of sedimentary rocks, coupled with metal isotope proxy reconstructions of the basin’s palaeogeography, hydrological connectivity and past redox conditions, which are all critical parameters to guide and de-risk future exploration of sediment-hosted resources in this frontier basin. Anticipated outcomes will benefit Australia's resources economy, while providing insights into the evolution of Earth’s surface environment in deep time.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220101017
Funder
Australian Research Council
Funding Amount
$456,000.00
Summary
Assessing the vulnerability of East Antarctica to future warming. This DECRA aims to address major gaps in our understanding of how the Antarctic Ice Sheet will respond to climate change, by enabling critical insights on its sensitivity to past climate warming. The project will apply a suite of geochemical approaches to determine – for East Antarctica’s most vulnerable basin – the extent of ice-sheet loss during past warming, and the impact of glacial meltwater on biological productivity and Sou ....Assessing the vulnerability of East Antarctica to future warming. This DECRA aims to address major gaps in our understanding of how the Antarctic Ice Sheet will respond to climate change, by enabling critical insights on its sensitivity to past climate warming. The project will apply a suite of geochemical approaches to determine – for East Antarctica’s most vulnerable basin – the extent of ice-sheet loss during past warming, and the impact of glacial meltwater on biological productivity and Southern Ocean circulation. New knowledge of how the ice sheet and ocean respond to climate warming, will lead to more reliable projections of future sea-level rise and climate. The DECRA will benefit Australia by providing a strong evidence base for policy decision-making to manage the impact of sea-level rise.Read moreRead less