Landscape evolution and palaeoclimates in Indonesia: environmental, faunal and archaeological implications. The influence of environmental and climatic changes on faunal (including human) populations is a pressing issue for Australian communities in environmentally sensitive areas. This project will address this issue by documenting how certain flora and fauna in Indonesia, our nearest northern neighbour, responded to environmental challenges. Revealing when humans first dispersed through the re ....Landscape evolution and palaeoclimates in Indonesia: environmental, faunal and archaeological implications. The influence of environmental and climatic changes on faunal (including human) populations is a pressing issue for Australian communities in environmentally sensitive areas. This project will address this issue by documenting how certain flora and fauna in Indonesia, our nearest northern neighbour, responded to environmental challenges. Revealing when humans first dispersed through the region and how they adapted to changing environmental conditions will also contribute to our understanding of the cultural heritage of Australia's indigenous settlers. This project will build on established collaborations with Indonesian researchers and pioneer new dating methodologies to further enhance Australia's place at the forefront of geochronology.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0453555
Funder
Australian Research Council
Funding Amount
$109,595.00
Summary
Luminescence stimulation and detection facility for dating of Quaternary geological and archaeological sediments. Reliable ages are required in the Earth and archaeological sciences. Luminescence dating is a flexible geochronological technique for diverse deposits. It exploits the radiation-induced thermally (TL) and optically stimulated luminescence (OSL) emissions from minerals exposed to sunlight before burial. Recent technical developments have made feasible OSL dating of small samples (e.g. ....Luminescence stimulation and detection facility for dating of Quaternary geological and archaeological sediments. Reliable ages are required in the Earth and archaeological sciences. Luminescence dating is a flexible geochronological technique for diverse deposits. It exploits the radiation-induced thermally (TL) and optically stimulated luminescence (OSL) emissions from minerals exposed to sunlight before burial. Recent technical developments have made feasible OSL dating of small samples (e.g., individual sand grains) and sediments deposited during the past 0.5-1 million years. We request funds for a Risø TL/OSL system with single-grain attachment to resolve the timing of sea-level, climate and landscape changes, and the chronology of human evolution and dispersal, in Australia and Southeast Asia.Read moreRead less
Constraining landform response to tectonic and climate changes in an active orogen: a multi-disciplinary approach. The aim of this project is to quantify the efficiency of coupling between tectonics, climate and erosion in an active mountain belt, the Southern Alps of New Zealand, by combining world-class expertise in a range of fields, including the collection and analysis of thermochronological data, the analysis of digital elevation maps, morphometric field measurements, and the development a ....Constraining landform response to tectonic and climate changes in an active orogen: a multi-disciplinary approach. The aim of this project is to quantify the efficiency of coupling between tectonics, climate and erosion in an active mountain belt, the Southern Alps of New Zealand, by combining world-class expertise in a range of fields, including the collection and analysis of thermochronological data, the analysis of digital elevation maps, morphometric field measurements, and the development and use of numerical models, both tectonic and geomorphic. In particular, it is proposed to develop and use unique quantitative methods to interpret thermochronological data. This work will help resolve the current debate concerning the potential feedback between climate and tectonics.Read moreRead less
A new approach to the U-series dating of fossil molluscs - a major advance for the earth and archaeological sciences. The development of a reliable method for accurately determining the age of fossil shells represents a breakthrough in the ability to date marine shoreline, lake, and other shell-bearing deposits (e.g. middens). This will present new opportunities for research of significant national benefit, particularly into the effects of climate change, including linked sea-level change and me ....A new approach to the U-series dating of fossil molluscs - a major advance for the earth and archaeological sciences. The development of a reliable method for accurately determining the age of fossil shells represents a breakthrough in the ability to date marine shoreline, lake, and other shell-bearing deposits (e.g. middens). This will present new opportunities for research of significant national benefit, particularly into the effects of climate change, including linked sea-level change and melting of ice sheets, the impact of sea-level change on coastal zones, and shifts in the amount and variability of rainfall in different regions. The method may also be used to estimate the frequency and size of large storm and tsunami events, earthquake risk, and the timing of prehistoric human migration and associated environmental impacts. Read moreRead less
Environmental impacts of climate change in the Nile basin over the past 30,000 years. There is growing international and national concern over the possible environmental, economic and social impacts of global and regional climate change. This project brings together a multi-disciplinary team of internationally recognised research leaders and the resources they command to investigate the environmental impacts of climatic changes in the Nile basin over geologically recent times. The outcome will b ....Environmental impacts of climate change in the Nile basin over the past 30,000 years. There is growing international and national concern over the possible environmental, economic and social impacts of global and regional climate change. This project brings together a multi-disciplinary team of internationally recognised research leaders and the resources they command to investigate the environmental impacts of climatic changes in the Nile basin over geologically recent times. The outcome will be a more comprehensive understanding of how a major river system responds to global and regional climate change, and will provide an enhanced conceptual basis for anticipating how drainage systems such as the Murray-Darling could respond to future change.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 environmental impact of an extreme event: the Toba mega-eruption, volcanic winter and the near demise of humans. There is widespread concern among scientists, farmers and policy makers over the possible environmental, economic and social impacts of global warming. Certain greenhouse gases such as carbon dioxide contribute to such warming, but other gases and dust particles, especially those from volcanic eruptions, may trigger global cooling. This project will evaluate the impact of a major ....The environmental impact of an extreme event: the Toba mega-eruption, volcanic winter and the near demise of humans. There is widespread concern among scientists, farmers and policy makers over the possible environmental, economic and social impacts of global warming. Certain greenhouse gases such as carbon dioxide contribute to such warming, but other gases and dust particles, especially those from volcanic eruptions, may trigger global cooling. This project will evaluate the impact of a major prehistoric eruption on global climate and regional plant, animal and human communities. We know that future eruptions will occur, so it is important to clarify the climatic and other effects of past eruptions. The project will also enhance our understanding of prehistoric cultural changes and extinctions.Read moreRead less
The dynamic evolution of sheared continental margins. This project will contribute to the fundamental science of understanding plate tectonic processes, and also have important practical implications for the oil and gas resources that are developed and hosted in continental margin settings. The study is therefore relevant to the National Research Priority goal of 'Developing Deep Earth Resources'. The project will also enhance our national scientific standing by addressing important scientific q ....The dynamic evolution of sheared continental margins. This project will contribute to the fundamental science of understanding plate tectonic processes, and also have important practical implications for the oil and gas resources that are developed and hosted in continental margin settings. The study is therefore relevant to the National Research Priority goal of 'Developing Deep Earth Resources'. The project will also enhance our national scientific standing by addressing important scientific questions of global significance, and by establishing strong international collaborations with prominent researchers outside Australia. In addition, the work will help sustain a world-leading research capability and provide a training ground for a new generation of younger scientists in Australia.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
A new rheological model for Australia to improve seismic hazard estimates and study the region's recent tectonic history and landform evolution. Australia is currently being squeezed between three active mountain belts, the Himalayas, the Papua New Guinea Highlands and the Southern Alps in New Zealand. We propose to integrate a large number of geological and geophysical databases that have been collected over the past few decades to develop a three-dimensional rheological model of the Australian ....A new rheological model for Australia to improve seismic hazard estimates and study the region's recent tectonic history and landform evolution. Australia is currently being squeezed between three active mountain belts, the Himalayas, the Papua New Guinea Highlands and the Southern Alps in New Zealand. We propose to integrate a large number of geological and geophysical databases that have been collected over the past few decades to develop a three-dimensional rheological model of the Australian continent, that is a model that predicts where and how Australia is deforming today. Combined with new, targeted field work, this model will be used to predict where earthquakes are likely to take place but also to study how our old continent is affected by these active mountain belts to create the present-day landscapes in which we live.Read moreRead less