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Tectonic Reconstruction of the Evolution of the Alpine-Himalayan Orogenic Chain. This project will construct a computationally explicit model of movements in the solid Earth for the past 150 million years, to study the Earth as a complex system during the collision that produced the Alpine-Himalayan mountain belt. This is the youngest collisional mountain belt on Earth, and at times it stretched from Spain to New Zealand. Earth Scientists want to understand the processes that took place to mak ....Tectonic Reconstruction of the Evolution of the Alpine-Himalayan Orogenic Chain. This project will construct a computationally explicit model of movements in the solid Earth for the past 150 million years, to study the Earth as a complex system during the collision that produced the Alpine-Himalayan mountain belt. This is the youngest collisional mountain belt on Earth, and at times it stretched from Spain to New Zealand. Earth Scientists want to understand the processes that took place to make it, in particular the role of ribbon continents. As a result of this work ordinary Australians will be able to better perceive their interactions with their nearest neighbours.Read moreRead less
Exposure dating with manganese-53, neon-21 and beryllium-10: a new toolkit for studying long-term landscape evolution. Australia today is the driest inhabited continent but this was not always the case. Tens of millions of years ago the climate of Australia was considerably wetter. Then, several million years ago, aridity in Australia developed producing most of the desert features of the red Centre that we see today. The age of our deserts and other arid features are not, however, well known. T ....Exposure dating with manganese-53, neon-21 and beryllium-10: a new toolkit for studying long-term landscape evolution. Australia today is the driest inhabited continent but this was not always the case. Tens of millions of years ago the climate of Australia was considerably wetter. Then, several million years ago, aridity in Australia developed producing most of the desert features of the red Centre that we see today. The age of our deserts and other arid features are not, however, well known. This project will determine the age of desertification in Australia, thereby enhancing our understanding of such processes and the response of our landscape to changing climate.
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Uncovering ancient landscapes with emerging technologies: integrating complex geospatial and fossil data to explore late Cenozoic environmental change. This project aims to use emerging technologies to unravel relationships between prehistoric climate changes and environmental impacts in northern Australia. Given current uncertainty about impacts of contemporary climate change on our biota, it is important to document the outcomes of past climatic changes and, in particular, the globally critica ....Uncovering ancient landscapes with emerging technologies: integrating complex geospatial and fossil data to explore late Cenozoic environmental change. This project aims to use emerging technologies to unravel relationships between prehistoric climate changes and environmental impacts in northern Australia. Given current uncertainty about impacts of contemporary climate change on our biota, it is important to document the outcomes of past climatic changes and, in particular, the globally critical period between 15 and five million years ago that shaped modern Australian environments. Fossil-rich deposits in the Riversleigh World Heritage Area of northern Queensland span this period. Interpretation of their fine-grained record of impact and change will improve our ability to predict and hence better manage impacts of future climate change on our unique national natural heritage.Read moreRead less
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
Palaeoclimatic and environmental significance of major Late Quaternary drainage contributions and disruptions in the Lake Eyre basin. This study will advance our knowledge of the most remarkable floods ever known to have occurred in Australia. They were associated with a vast aquatic ecosystem in what today is the barren northern end of the Flinders Ranges, a region of desert dunes and salt lakes. Remarkably, such wet conditions appear to have coincided with episodes of megafaunal extinction and ....Palaeoclimatic and environmental significance of major Late Quaternary drainage contributions and disruptions in the Lake Eyre basin. This study will advance our knowledge of the most remarkable floods ever known to have occurred in Australia. They were associated with a vast aquatic ecosystem in what today is the barren northern end of the Flinders Ranges, a region of desert dunes and salt lakes. Remarkably, such wet conditions appear to have coincided with episodes of megafaunal extinction and with the human occupation of Australia. The results will provide valuable information with which to better understand the the main global drivers of episodes of profound wetness and dryness in Australian climate. Read moreRead less
The propagation of gravity currents over complex terrain. Dust storms, volcanic eruptions, rivers rushing sediment into lakes and seas, and spillages of toxic liquids and gases, are all examples of environmental problems that can occur, and when they do, they threaten both wild life and human communities. This project involves research that will provide quantitative understanding of key processes in these problems from which reliable software will be built to predict their consequences. The soft ....The propagation of gravity currents over complex terrain. Dust storms, volcanic eruptions, rivers rushing sediment into lakes and seas, and spillages of toxic liquids and gases, are all examples of environmental problems that can occur, and when they do, they threaten both wild life and human communities. This project involves research that will provide quantitative understanding of key processes in these problems from which reliable software will be built to predict their consequences. The software will produce an animation of dust containing fluids moving over a landscape of arbitrary complexity.Read moreRead less
How green were our deserts? Evidence for Late Quaternary climate change and the source of water in the Lake Eyre basin. This project addresses the National Research Priority of Environmentally Sustainable Australia by examining evidence for what has controlled climate change and variable runoff in the vast Lake Eyre basin. It will provide evidence for why Australia, presently the world's driest inhabited continent, has as recently as medieval times supported large lakes holding many cubic kilome ....How green were our deserts? Evidence for Late Quaternary climate change and the source of water in the Lake Eyre basin. This project addresses the National Research Priority of Environmentally Sustainable Australia by examining evidence for what has controlled climate change and variable runoff in the vast Lake Eyre basin. It will provide evidence for why Australia, presently the world's driest inhabited continent, has as recently as medieval times supported large lakes holding many cubic kilometres of fresh water adjacent to the now-barren Flinders Ranges. It will show if this water had a tropical or temperate source, fundamental information for understanding Australia's past climate, and allow predictions of future climate to be based on firm evidence.Read moreRead less
Reconstruction of marine ecosystems following the greatest mass extinction during the Phanerozoic history of Earth life: Lessons for the present. Frequent defaunation events strongly threaten sustainable development of marine resources and human environments especially in countries that are surrounded by oceans such as Australia. By analysing recovery mechanisms of marine ecosystems following the Permian-Triassic mass extinction, the greatest crisis of Earth life, we will develop predictive tool ....Reconstruction of marine ecosystems following the greatest mass extinction during the Phanerozoic history of Earth life: Lessons for the present. Frequent defaunation events strongly threaten sustainable development of marine resources and human environments especially in countries that are surrounded by oceans such as Australia. By analysing recovery mechanisms of marine ecosystems following the Permian-Triassic mass extinction, the greatest crisis of Earth life, we will develop predictive tools for analysing restoration of modern marine defaunated ecosystems. Understanding biotic extinction and recovery is crucial to understanding the evolution of the Earth's biosphere. This study increases Australia's research profile on this global issue. The target strata are quality oil source rocks in Perth Basin, and thus this project is beneficial to the Australian petroleum industry.Read moreRead less
Phosphate stabilisation of metalliferous mine wastes: The key to solving a major environmental issue? Mine wastes represent the greatest proportion of solid waste produced by mankind. Unconstrained drainage from sulfide-rich mine wastes impacts on water, soil and sediment quality. This project will establish the scientific principles of phosphate stabilisation, which involves the addition of phosphate compounds to mine wastes and soils to permanently contain metals and acid. A solid understandin ....Phosphate stabilisation of metalliferous mine wastes: The key to solving a major environmental issue? Mine wastes represent the greatest proportion of solid waste produced by mankind. Unconstrained drainage from sulfide-rich mine wastes impacts on water, soil and sediment quality. This project will establish the scientific principles of phosphate stabilisation, which involves the addition of phosphate compounds to mine wastes and soils to permanently contain metals and acid. A solid understanding of this emerging technology is a prerequisite for any sustainable management of mine sites. The study will provide the foundation of future management tools needed by landholders, industry and regulators to remediate mined land and waste repositories.Read moreRead less
Survival stategies and dynamics of stromatolite-associated microbial populations. Biogenic stromatolites are formed by the accretion of carbonates and entrapment of sediments by benthic cyanobacteria, algae and other microorganisms. Stromatolites have been present on Earth for more than three billion years and the biogeochemical processes involved in their formation are indicators of the earliest life on this planet. The applicant proposes to study, at the level of molecular genetics, the divers ....Survival stategies and dynamics of stromatolite-associated microbial populations. Biogenic stromatolites are formed by the accretion of carbonates and entrapment of sediments by benthic cyanobacteria, algae and other microorganisms. Stromatolites have been present on Earth for more than three billion years and the biogeochemical processes involved in their formation are indicators of the earliest life on this planet. The applicant proposes to study, at the level of molecular genetics, the diversity of stromatolite-associated microorganisms. The defined microbial populations will be correlated with the prevailing environmental conditions to elucidate the effect of biological and physical factors in determining stromatolite structure.Read moreRead less