Discovery Early Career Researcher Award - Grant ID: DE160100628
Funder
Australian Research Council
Funding Amount
$368,394.00
Summary
Dissolved organic carbon quality influences metal toxicity in freshwaters. This project aims to characterise the types of dissolved organic carbon (DOC) found within Australian freshwaters and investigate how these influence metal toxicity to organisms. DOC has the ability to decrease the toxicity of metals to organisms in natural waters, and the intensity of the decrease is related to the type of DOC. Information regarding the types of DOC commonly found within Australian waters is lacking, and ....Dissolved organic carbon quality influences metal toxicity in freshwaters. This project aims to characterise the types of dissolved organic carbon (DOC) found within Australian freshwaters and investigate how these influence metal toxicity to organisms. DOC has the ability to decrease the toxicity of metals to organisms in natural waters, and the intensity of the decrease is related to the type of DOC. Information regarding the types of DOC commonly found within Australian waters is lacking, and their impact on metal toxicity to Australian biota is unknown. This project aims to characterise DOC from different Australian ecoregions and investigate the influence of different DOCs on metal toxicity. The expected outcomes are better predictive toxicity models and better assessment of risks associated with metal contamination.Read moreRead less
Resolving the geochemistry of coastal floodplain blackwaters. Deoxygenated dead zones are a rapidly growing global crisis in coastal areas. A major cause of dead zones in our estuaries is the formation and release of blackwaters from coastal wetlands. This project will provide the knowledge necessary to manage blackwaters in these wetlands and to greatly improve the health and sustainability of our estuaries.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE200100022
Funder
Australian Research Council
Funding Amount
$580,000.00
Summary
New frontier in Geoscience: A tandem trace element and isotopes facility. The project aims to integrate a multicollector mass spectrometer with the existing laser ablation laboratory at Southern Cross University to establish a unique facility offering tandem trace element and isotopes analysis. This will provide new methodological advancement by expanding the analytical range and obtaining information otherwise inaccessible to stand-alone instruments using traditional standardisation methods. Sp ....New frontier in Geoscience: A tandem trace element and isotopes facility. The project aims to integrate a multicollector mass spectrometer with the existing laser ablation laboratory at Southern Cross University to establish a unique facility offering tandem trace element and isotopes analysis. This will provide new methodological advancement by expanding the analytical range and obtaining information otherwise inaccessible to stand-alone instruments using traditional standardisation methods. Specifically, the integration of an innovative split stream system allows precise matching of elemental concentration with isotopic ratios, crucial for microscale resolution and data accuracy. The new infrastructure will confirm Australia’s leadership role and maintain its competitive advantage in geosciences.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560786
Funder
Australian Research Council
Funding Amount
$495,000.00
Summary
A ThermoFinnigan Triton high-sensitivity thermal ionisation mass spectrometer for constraining geoscience rates and environmental processes via Ra and Os analysis. The short-lived isotope 226Ra provides a powerful new tool for constraining the nature of melting and magma/fluid transport processes within the Earth. Conversely, Os isotopes can track ancient recycled components, core-mantle boundary interaction and date organic-rich sediments. The installation of a high-sensitivity thermal ionisati ....A ThermoFinnigan Triton high-sensitivity thermal ionisation mass spectrometer for constraining geoscience rates and environmental processes via Ra and Os analysis. The short-lived isotope 226Ra provides a powerful new tool for constraining the nature of melting and magma/fluid transport processes within the Earth. Conversely, Os isotopes can track ancient recycled components, core-mantle boundary interaction and date organic-rich sediments. The installation of a high-sensitivity thermal ionisation mass spectrometer at Macquarie University will enable research in these exciting endeavours and enhance a world-class analytical facility with widespread and lasting utility. Planned research will constrain deep earth processes, magma/water transport processes, magma-mantle/chromatography, volcanic hazards, ore deposit formation, controversial climatic models, soil erosion and early planet differentiation.Read moreRead less
Maximising carbon sequestration in freshwater wetlands. Maximising carbon sequestration in freshwater wetlands. This project aims to determine how manipulation of wetland hydrology can alter sulphur and iron cycling to inhibit methane emission and improve wetland net-carbon sequestration. Wetlands are among earth's most efficient ecosystems for carbon sequestration, but methane emission can offset this capacity. Redox cycling of sulphur and iron in wetlands can inhibit methane emission, but the ....Maximising carbon sequestration in freshwater wetlands. Maximising carbon sequestration in freshwater wetlands. This project aims to determine how manipulation of wetland hydrology can alter sulphur and iron cycling to inhibit methane emission and improve wetland net-carbon sequestration. Wetlands are among earth's most efficient ecosystems for carbon sequestration, but methane emission can offset this capacity. Redox cycling of sulphur and iron in wetlands can inhibit methane emission, but the precise biogeochemical processes and their efficiency are very poorly constrained due to a lack of studies—especially in Australian freshwater wetlands. This project is expected to inhibit methane emission in freshwater wetlands and maximise their net carbon sequestration efficiency.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100053
Funder
Australian Research Council
Funding Amount
$358,031.00
Summary
A national facility for the analysis of pyrogenic carbon. This project aims to develop a national facility for pyrogenic carbon analysis. Pyrogenic carbon is a poorly constrained, slow-cycling terrestrial carbon pool with significant carbon sequestration potential. The project expects to expand the newly developed hydrogen pyrolysis analytical capability to provide high throughput, robust measurement of the abundance and isotope composition of pyrogenic carbon in soils and sediments. This will p ....A national facility for the analysis of pyrogenic carbon. This project aims to develop a national facility for pyrogenic carbon analysis. Pyrogenic carbon is a poorly constrained, slow-cycling terrestrial carbon pool with significant carbon sequestration potential. The project expects to expand the newly developed hydrogen pyrolysis analytical capability to provide high throughput, robust measurement of the abundance and isotope composition of pyrogenic carbon in soils and sediments. This will provide significant benefit, such as the ability to make significant advances in areas as diverse as geochronology, archaeology, palaeoecology, soil science geomorphology and carbon cycle/sequestration science.Read moreRead less
The Impact of Trawling on Nitrogen Removal through Sediment Denitrification in Western Moreton Bay. Nutrient enrichment of coastal waters is a national problem requiring urgent action. Sediment denitrification is one of the few natural processes capable of counteracting the process of eutrophication. Although trawling is undertaken in coastal water bodies around Australia the impact on sediment denitrification and the nitrogen budgets of coastal systems has never been considered. Many hundred's ....The Impact of Trawling on Nitrogen Removal through Sediment Denitrification in Western Moreton Bay. Nutrient enrichment of coastal waters is a national problem requiring urgent action. Sediment denitrification is one of the few natural processes capable of counteracting the process of eutrophication. Although trawling is undertaken in coastal water bodies around Australia the impact on sediment denitrification and the nitrogen budgets of coastal systems has never been considered. Many hundred's of millions of dollars are likely to be spent over the next ten years on the management of nitrogen enrichment of Australia's coastal waters. This study will quantify the impact of trawling on sediment denitrification; information which is critical for the efficient allocation of management resources.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100088
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
A coupled high temperature elemental analyser - gas chromatograph - mass spectrometer for climate, water and ecological research. A coupled high temperature elemental analyser - gas chromatograph - mass spectrometer for climate, water and ecological research: This project is for a high temperature, elemental analysis, gas chromatography, isotope mass spectrometry facility. This would permit the analysis of the isotopes of up to four elements in a range of environmental samples such as tree cell ....A coupled high temperature elemental analyser - gas chromatograph - mass spectrometer for climate, water and ecological research. A coupled high temperature elemental analyser - gas chromatograph - mass spectrometer for climate, water and ecological research: This project is for a high temperature, elemental analysis, gas chromatography, isotope mass spectrometry facility. This would permit the analysis of the isotopes of up to four elements in a range of environmental samples such as tree cellulose, ecological samples and dissolved nutrients in surface and ground waters. Results will help improve our understanding of climate - surface water - ground water interactions, ecosystem function, and past climate and environmental change. The new facility will meet the need for organic isotope analyses to better understand the underlying physical processes.Read moreRead less