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.
Read moreRead less
Unraveling the geology of Mars. This project aims to use a suite of innovative conceptual and technical tools that target specific weaknesses in existing Mars exploration programs – where comparatively modest investment could deliver transformative change in one of the largest global research efforts, on which current expenditure is in billions of dollars. The project expects to provide context for the geologic processes that affected Mars. Expected outcomes include a better understanding of the ....Unraveling the geology of Mars. This project aims to use a suite of innovative conceptual and technical tools that target specific weaknesses in existing Mars exploration programs – where comparatively modest investment could deliver transformative change in one of the largest global research efforts, on which current expenditure is in billions of dollars. The project expects to provide context for the geologic processes that affected Mars. Expected outcomes include a better understanding of the habitability and geological history of Mars as well as facilitating both future mission landing site selection and providing context for comparison to the early history of Earth.Read moreRead less
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
Lifting the veil on the Geological Dark Ages: The search for Hadean Crust on Earth. The project involves detailed field and isotopic study of some of the oldest known rocks and minerals to develop the first comprehensive picture of the earliest growth of the Australian continent. The data will reveal the timing and processes of continent formation and shed new light on the enigmatic early period of the Earth's evolution.
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
Decoding the chronology of Mars. This project aims to determine a detailed and accurate geologic timescale for Mars, using image processing, high performance computing, geochemistry and geochronology. Mars is the nearest possibly habitable planet to our own. The project will apply automated feature recognition techniques to high resolution space-craft derived images of the surface of Mars and study formation ages of Martian meteorites. The goal is an absolute chronology for Mars. This contribute ....Decoding the chronology of Mars. This project aims to determine a detailed and accurate geologic timescale for Mars, using image processing, high performance computing, geochemistry and geochronology. Mars is the nearest possibly habitable planet to our own. The project will apply automated feature recognition techniques to high resolution space-craft derived images of the surface of Mars and study formation ages of Martian meteorites. The goal is an absolute chronology for Mars. This contributes to a better understanding of the geologic and habitability history of Mars, facilitating both future mission landing site selection and providing context for comparison to the early history of Earth.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
Uncovering the Chronology of Mars. This project aims to answer fundamental questions about the origin and evolution of the solar system by utilizing innovative machine learning techniques developed by our group. Starting with Mars, we will interrogate the highest resolution image data to automatically generate the ultimate resolution global age map. The expected outcomes of this project include determining the absolute ages of geologic processes on Mars to deliver a groundbreaking look at the ge ....Uncovering the Chronology of Mars. This project aims to answer fundamental questions about the origin and evolution of the solar system by utilizing innovative machine learning techniques developed by our group. Starting with Mars, we will interrogate the highest resolution image data to automatically generate the ultimate resolution global age map. The expected outcomes of this project include determining the absolute ages of geologic processes on Mars to deliver a groundbreaking look at the geology of another planet at the centimeter scale. A major benefit of this project will be enhancing Australia’s role as a leader in space and planetary science through this interdisciplinary, international collaboration across engineering, geology, computing, and chronology.Read moreRead less