Molecular fossils, the evolution of Earth's early oceans and the origin of the oldest oil. Australia retains undiscovered oil reserves. We believe that a change in primitive marine life forms may have fundamentally changed the chemistry of the Earth's oceans and is responsible for the world's oldest oil reserves. While these reserves have been found, and successfully commercialised, overseas, similar reservoirs in Australia remain elusive. The project will develop and apply technologies based on ....Molecular fossils, the evolution of Earth's early oceans and the origin of the oldest oil. Australia retains undiscovered oil reserves. We believe that a change in primitive marine life forms may have fundamentally changed the chemistry of the Earth's oceans and is responsible for the world's oldest oil reserves. While these reserves have been found, and successfully commercialised, overseas, similar reservoirs in Australia remain elusive. The project will develop and apply technologies based on hydrocarbon biomarkers to help determine the oil-producing rock types of Precambrian sedimentary rocks. This allows us to estimate the oil's age and predict where petroleum reservoirs may be hidden. PhD students involved in the project will gain valuable knowledge about the link between changes in ecology and the carbon cycle.Read moreRead less
Molecular fossils, environmental genomics and the natural history of an Australian salt lake. Increasing salinity of lakes is a critical problem for sustainable water supply in Australia. To comprehend the consequences of human-induced salinization, it is crucial to understand salt lakes at their most fundamental level. This project develops pioneering technologies to elucidate the microbial ecology and geochemistry of salt lakes in unprecedented detail. It will open new pathways to unravel how ....Molecular fossils, environmental genomics and the natural history of an Australian salt lake. Increasing salinity of lakes is a critical problem for sustainable water supply in Australia. To comprehend the consequences of human-induced salinization, it is crucial to understand salt lakes at their most fundamental level. This project develops pioneering technologies to elucidate the microbial ecology and geochemistry of salt lakes in unprecedented detail. It will open new pathways to unravel how microbial ecosystems adapt to increasing salinization, and how they reacted to climate fluctuations in the past. Students will gain multidisciplinary skills in environmental genomics, proteomics and geochemistry, a unique combination that will become decisive for understanding and preserving ecosystems on our continent.Read moreRead less
Constructing a temporally-constrained palaeoecological model of Quaternary faunal evolution and extinction in eastern Australia. Increased climatic variability and human-induced environmental degradation have had severe impacts on biodiversity, socio-economic sustainability and possibly our own future survival, thus attracting global attention. This study will help unravel the causes of the extinctions of Australia's large-size animals (megafauna) during the periods of last glaciation and earlie ....Constructing a temporally-constrained palaeoecological model of Quaternary faunal evolution and extinction in eastern Australia. Increased climatic variability and human-induced environmental degradation have had severe impacts on biodiversity, socio-economic sustainability and possibly our own future survival, thus attracting global attention. This study will help unravel the causes of the extinctions of Australia's large-size animals (megafauna) during the periods of last glaciation and earliest human colonisation of Australia. Investigating the causes of megafauna extinction is essential for an understanding of how those prehistoric events shaped the modern biota, and for the development of conservation strategies for our endemic faunas in an era of increased climatic and environmental variability and vulnerability.Read moreRead less
Global Climate Change, Carbon Dioxide (CO2), and the Evolution of Life in the Palaeozoic and Early Mesozoic. A critically important problem directly affecting our society is the effects of climate change on our life support systems and environment. But the impacts of climate change and increasing carbon dioxide (CO2) on the Earth's biosphere are not well understood, so much can be learnt from examining past events that have shaped its evolution. Our research will provide important new insights i ....Global Climate Change, Carbon Dioxide (CO2), and the Evolution of Life in the Palaeozoic and Early Mesozoic. A critically important problem directly affecting our society is the effects of climate change on our life support systems and environment. But the impacts of climate change and increasing carbon dioxide (CO2) on the Earth's biosphere are not well understood, so much can be learnt from examining past events that have shaped its evolution. Our research will provide important new insights into how life evolved and survived periods of major environmental upheaval in Earth history, especially its responses to large shifts in global temperatures and atmospheric CO2. These outcomes will provide valuable input to help project how future global warming and rapidly increasing carbon dioxide levels will likely impact our modern biosphere.Read moreRead less
Responses of southern Australian mammal faunas to climate change before and after human arrival. In the past 170 years, southern Australia mammals have suffered one of the worst extinction rates in the world. More losses are predicted in the face of global warming. This recent extinction wave follows a major extinction event that saw 90% of Australia's large animals disappear 60,000-40,000 years ago. The causes are hotly debated. Some researchers argue for a human cause, others suggest that clim ....Responses of southern Australian mammal faunas to climate change before and after human arrival. In the past 170 years, southern Australia mammals have suffered one of the worst extinction rates in the world. More losses are predicted in the face of global warming. This recent extinction wave follows a major extinction event that saw 90% of Australia's large animals disappear 60,000-40,000 years ago. The causes are hotly debated. Some researchers argue for a human cause, others suggest that climate change was to blame. This study will refine our knowledge of the timing and causes of these extinctions in southern Australia by assessing how communities responded to climate change in the lead-up to human arrival. It will provide vital information for managing the conservation of many modern species and guide us in limiting future losses.Read moreRead less
The historical environment of Angkor: an investigation of synergy between people and landscape. Understanding the complex inter-relationship between humans and the natural environment is of critical importance. The use of geo-scientific techniques to interpret historical environmental records provides a useful tool for obtaining this knowledge. Using the medieval city of Angkor, Cambodia, as a case study, the proposed research will employ well-established analytical techniques in a new and innov ....The historical environment of Angkor: an investigation of synergy between people and landscape. Understanding the complex inter-relationship between humans and the natural environment is of critical importance. The use of geo-scientific techniques to interpret historical environmental records provides a useful tool for obtaining this knowledge. Using the medieval city of Angkor, Cambodia, as a case study, the proposed research will employ well-established analytical techniques in a new and innovative manner to reconstruct environmental change and cultural adaptation. This research, the first of its kind undertaken at Angkor, will revolutionise our understanding of this World Heritage site, and contribute to a better understanding of the synergy between human culture and its environmental context.Read moreRead less
The abundance and isotope composition of pyrogenic carbon in tropical savannas. Tropical savanna burning represents an important but poorly understood component of the global carbon cycle. This project will quantify the dynamics of pyrogenic carbon (charcoal, soot, biochar) production and dispersal during savanna fires. Pyrogenic carbon is important because it can persist in the environment for thousands of years. Hence it represents both a 'sink' for carbon and a source of information about pas ....The abundance and isotope composition of pyrogenic carbon in tropical savannas. Tropical savanna burning represents an important but poorly understood component of the global carbon cycle. This project will quantify the dynamics of pyrogenic carbon (charcoal, soot, biochar) production and dispersal during savanna fires. Pyrogenic carbon is important because it can persist in the environment for thousands of years. Hence it represents both a 'sink' for carbon and a source of information about past environments. The project will also assist in validating 'biochar' as a new tool for carbon sequestration, an enable a deeper understanding of the interactions between fire, humans, vegetation and climate.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