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
Radiocarbon dating frontiers: Testing hypotheses of human evolution and environmental change in Australasia and Southeast Asia (60,000-25,000 years ago). Radiocarbon (14C) dating has revolutionised our understanding of archaeological events and past environments. However, much of the period 60,000-25,0000 years ago is beyond the traditional limit of the method (40,000 years). This is unfortunate as this period is characterised by rapid, extreme shifts in climate during which the global spread ....Radiocarbon dating frontiers: Testing hypotheses of human evolution and environmental change in Australasia and Southeast Asia (60,000-25,000 years ago). Radiocarbon (14C) dating has revolutionised our understanding of archaeological events and past environments. However, much of the period 60,000-25,0000 years ago is beyond the traditional limit of the method (40,000 years). This is unfortunate as this period is characterised by rapid, extreme shifts in climate during which the global spread of modern humans took place. This project will utilise the latest developments in 14C dating (allowing ages up to 60,000 years ago) to test hypotheses concerning the timing of human arrival and settlement in Southeast Asia and Australasia, their environmental impact, and the synchroneity of climate change between the hemispheres.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0561224
Funder
Australian Research Council
Funding Amount
$267,767.00
Summary
14CHRONOS (Chronologies from High-ResolutiON Organic Separations): a centre for radiocarbon dating of specific compounds for the environmental and archaeological sciences. Accurate timekeeping is central to the environmental and archaeological sciences. Radiocarbon dating is the leading geochronological technique for events of the past 50,000 years, but the issue for sample contamination remains a major source of concern. Avoidance of contaminants can be achieved through the identification of sp ....14CHRONOS (Chronologies from High-ResolutiON Organic Separations): a centre for radiocarbon dating of specific compounds for the environmental and archaeological sciences. Accurate timekeeping is central to the environmental and archaeological sciences. Radiocarbon dating is the leading geochronological technique for events of the past 50,000 years, but the issue for sample contamination remains a major source of concern. Avoidance of contaminants can be achieved through the identification of specific biomolecular compounds that unambiguously formed part of the original sample, and the isolation of these biomolecules for radiocarbon dating using accelerator mass spectrometry. Here we request funds to establish Australia's first compound-specific radiocarbon dating facility, to obtain ages of high accuracy for key studies of climate and landscape change, evolutionary biology and archaeology.Read moreRead less
Life and times of Beringian biota from luminescence and radiocarbon dating of sedimentary DNA: chronologies for palaeoenvironmental and archaeological archives. This study will yield important new data on the time of entry of humans into a previously uninhabited continent (North America) and the record of subsequent human-environment interactions. The same broad issues apply to Australia, so understanding the sequence and causes of events in Beringia will provide insights into human disruption o ....Life and times of Beringian biota from luminescence and radiocarbon dating of sedimentary DNA: chronologies for palaeoenvironmental and archaeological archives. This study will yield important new data on the time of entry of humans into a previously uninhabited continent (North America) and the record of subsequent human-environment interactions. The same broad issues apply to Australia, so understanding the sequence and causes of events in Beringia will provide insights into human disruption of the Australian ecosystem. The development of improved techniques in palaeogenetics and geochronology will benefit researchers worldwide, increase the capacity for commercial services, and enhance Australia's international standing in cutting edge science. We will train high-quality graduate students and create new collaborative initiatives and opportunities for research, exchange, training and education.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100094
Funder
Australian Research Council
Funding Amount
$110,000.00
Summary
Single-grain optically-stimulated luminescence and dosimetry instruments to service the Sydney metropolitan and greater New South Wales region. This equipment will support projects that address significant environmental challenges in Australia, such as climate change and variability, coastal management and sustainable river and water management, and that assess the impacts and consequences of these challenges for populations living in environmentally sensitive areas. These projects will build on ....Single-grain optically-stimulated luminescence and dosimetry instruments to service the Sydney metropolitan and greater New South Wales region. This equipment will support projects that address significant environmental challenges in Australia, such as climate change and variability, coastal management and sustainable river and water management, and that assess the impacts and consequences of these challenges for populations living in environmentally sensitive areas. These projects will build on established collaborations in Australia, Antarctica and the south-west Pacific and encourage new collaborations with south-east Asian, Egyptian and Argentinean researchers, which will promote Australian research on a world stage. The use of this equipment will also pioneer new dating methodologies to further enhance Australia's place at the forefront of geochronology.Read moreRead less