A revolution in Earth History: Life and Environment in the Neoarchaean (2.5-2.8 Ga). This research will keep Australian scientists in the forefront of studies of early life on Earth. At a time when there is a great deal of interest in this topic because of the search for similar life elsewhere in the Solar System, this work will take a prominant place in international research. It will attract leading researchers from elsewhere, with consequent intellectual benefits, and will inspire students t ....A revolution in Earth History: Life and Environment in the Neoarchaean (2.5-2.8 Ga). This research will keep Australian scientists in the forefront of studies of early life on Earth. At a time when there is a great deal of interest in this topic because of the search for similar life elsewhere in the Solar System, this work will take a prominant place in international research. It will attract leading researchers from elsewhere, with consequent intellectual benefits, and will inspire students to careers in science.Read moreRead less
Palaeobiology of hydrothermal mineral deposits. Mineral deposits that formed at up to 150 degrees C record the history of micro-organisms referred to as hyperthermophiles. Current biological studies predict that such organisms are the most primitive known. Thus by studying these deposits we have the opportunity to uncover the earliest history of life on Earth, and to improve our understanding of ore deposition. Such deposits are also prime targets for the search for life and former life elsewher ....Palaeobiology of hydrothermal mineral deposits. Mineral deposits that formed at up to 150 degrees C record the history of micro-organisms referred to as hyperthermophiles. Current biological studies predict that such organisms are the most primitive known. Thus by studying these deposits we have the opportunity to uncover the earliest history of life on Earth, and to improve our understanding of ore deposition. Such deposits are also prime targets for the search for life and former life elsewhere in the Solar System, and the proposed research will contribute to that search.Read moreRead less
Organic geochemistry of the McArthur River hydrothermal deposit. Exploration for hydrothermal ore deposits in sedimentary basins has many problems because of the lack of any general agreement on the mechanisms of formation of major deposits. This proposed research will focus on the fundamental issue of the interaction of organic matter and mineralizing fluids in contributing to ore mineral deposition. Given that the McArthur River orebody is an exquisitely preserved example of a hydrothermal dep ....Organic geochemistry of the McArthur River hydrothermal deposit. Exploration for hydrothermal ore deposits in sedimentary basins has many problems because of the lack of any general agreement on the mechanisms of formation of major deposits. This proposed research will focus on the fundamental issue of the interaction of organic matter and mineralizing fluids in contributing to ore mineral deposition. Given that the McArthur River orebody is an exquisitely preserved example of a hydrothermal deposit it will thus enable a comprehensive organic geochemical investigation to elucidate the role of organic matter in ore formation. The outcomes will benefit the Australian mineral exploration industry by refining current ore genesis models.Read moreRead less
Links Between Modern and Fossil Microbes and the Evolution of Life in Earth's Extreme Early Environments. The quest to understand early and modern life in extreme environments tackles some of the most profound questions of humankind. The novel application of spectroscopic techniques to investigate modern and fossil microbes presents an unprecedented opportunity to establish the link between primitive living and fossil organisms, thus enriching our understanding of the early evolution of life and ....Links Between Modern and Fossil Microbes and the Evolution of Life in Earth's Extreme Early Environments. The quest to understand early and modern life in extreme environments tackles some of the most profound questions of humankind. The novel application of spectroscopic techniques to investigate modern and fossil microbes presents an unprecedented opportunity to establish the link between primitive living and fossil organisms, thus enriching our understanding of the early evolution of life and its interactions with Earth's early environments. The project links fundamental processes that shaped the Earth and thus fits into the National Research Priority 1: An Environmentally Sustainable Australia. Read moreRead less
Predicting Biodiversity from Population Dynamics. This research aims to deepen our understanding of how changes to the environment, including those attributable to human activities, influence the ecological and evolutionary mechanisms that generate and maintain biodiversity. This understanding is of urgent importance, in light of the predicted changes in climate and habitat over the next century, because biodiversity is critical to the proper functioning of ecosystems that human societies depend ....Predicting Biodiversity from Population Dynamics. This research aims to deepen our understanding of how changes to the environment, including those attributable to human activities, influence the ecological and evolutionary mechanisms that generate and maintain biodiversity. This understanding is of urgent importance, in light of the predicted changes in climate and habitat over the next century, because biodiversity is critical to the proper functioning of ecosystems that human societies depend upon. The graduate student involved in this research will have the opportunity to receive in-depth training as part of a cross-disciplinary collaboration that combines mathematics, ecology, evolution, and paleontology.
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