The enigmatic link between crustal growth and supercontinent formation. This project links with major energy and resource initiatives from the Australian Government. It will provide detailed geological information that will help constrain our understanding of the deep structure of the Earth in northern and central Australia. This knowledge will assist in mineral and energy resource exploration of these highly prospective regions. The information will also link with other ARC-funded geological st ....The enigmatic link between crustal growth and supercontinent formation. This project links with major energy and resource initiatives from the Australian Government. It will provide detailed geological information that will help constrain our understanding of the deep structure of the Earth in northern and central Australia. This knowledge will assist in mineral and energy resource exploration of these highly prospective regions. The information will also link with other ARC-funded geological studies, to help understand how a large, but enigmatic, part of the Australian continental grew rapidly, almost 2 billion years ago.
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How responsive are continental interiors to the geodynamic evolution of plate margins? An Australian case study. The outcomes of this project will advance our understanding of the evolution and dynamics of the Australian plate by improving knowledge of the way plate driving forces shaped the continental interior. This will lead to a refinement of existing geological models describing the history of the Australian continent, and will provide a valuable backdrop for the current focus on the cont ....How responsive are continental interiors to the geodynamic evolution of plate margins? An Australian case study. The outcomes of this project will advance our understanding of the evolution and dynamics of the Australian plate by improving knowledge of the way plate driving forces shaped the continental interior. This will lead to a refinement of existing geological models describing the history of the Australian continent, and will provide a valuable backdrop for the current focus on the contemporary state of the Australian plate. The study will also provide a framework for petroleum exploration models in the central Australian basins, since they rely crucially on the thermal and structural datasets that will be produced in this project.Read moreRead less
Thermal regimes, flexure and duration: establishing the framework for intracratonic orogeny in central Australia. Intracratonic orogeny is a confronting phenomena because it contradicts the plate tectonic paradigm, which highlights the apparently rigidity of the lithospheric plates. Central Australia contains an exceptional record of intracratonic orogeny, expressed by the formation of the Petermann and Alice Springs orogens. This project will quantify the duration, and thermal conditions assoc ....Thermal regimes, flexure and duration: establishing the framework for intracratonic orogeny in central Australia. Intracratonic orogeny is a confronting phenomena because it contradicts the plate tectonic paradigm, which highlights the apparently rigidity of the lithospheric plates. Central Australia contains an exceptional record of intracratonic orogeny, expressed by the formation of the Petermann and Alice Springs orogens. This project will quantify the duration, and thermal conditions associated with the comparatively poorly known Petermann Orogen. Given the importance of intracratonic deformation in shaping the lithospheric architecture of central Australia, understanding the history of the Petermann Orogeny is essential to developing models that describe the evolution of the Australian continent, and continental interiors in general.Read moreRead less
The Initiation of Early Palaeozoic Subduction in Eastern Australia and North America: causes and effects. Identified thirty or more years ago subduction is the return of cold, dense, oceanic lithosphere to the mantle and is one of the key dynamic elements of the plate tectonic paradigm. It is this process that is responsible for the 'Pacific Ring of Fire'. It is the root cause of many key geological processes and is a primary control of some of the earth's largest-scale physiographic features, i ....The Initiation of Early Palaeozoic Subduction in Eastern Australia and North America: causes and effects. Identified thirty or more years ago subduction is the return of cold, dense, oceanic lithosphere to the mantle and is one of the key dynamic elements of the plate tectonic paradigm. It is this process that is responsible for the 'Pacific Ring of Fire'. It is the root cause of many key geological processes and is a primary control of some of the earth's largest-scale physiographic features, including deep-sea trenches and mountain ranges. Using the important record of Cambrian in eastern Australia and in the comparable Canadian Atlantic margin, we will look at the causes and impact of the earliest stages of subduction as it first developed in the western Pacific and pre-cursor Atlantic 500 million years ago.Read moreRead less
Modern-Style Subduction Reflected in the 2.0 Billion Year Old East African Eclogites. Plate tectonics is the crustal expression of the dynamic Earth, and has been so for the past 2 billion years (Ga). As the link between the deep Earth, the hydrosphere and the atmosphere, plate tectonics is fundamental to life on Earth: it is what stands us apart from our planetary neighbours. Yet, plate tectonics may not have existed in the same form for the first half of the planet's life. This project will 1) ....Modern-Style Subduction Reflected in the 2.0 Billion Year Old East African Eclogites. Plate tectonics is the crustal expression of the dynamic Earth, and has been so for the past 2 billion years (Ga). As the link between the deep Earth, the hydrosphere and the atmosphere, plate tectonics is fundamental to life on Earth: it is what stands us apart from our planetary neighbours. Yet, plate tectonics may not have existed in the same form for the first half of the planet's life. This project will 1) increase our understanding of the Earth at the dawn of plate tectonics and foster community knowledge of the evolving Earth; 2) address the fundamental nature of the Earth at the time of much Australian ore formation, thus assisting in deep Earth resource exploration.Read moreRead less
Compressional Deformation and Uplift of Australia's Passive Southern Margin. The key project benefit will be to advance our understanding of the processes which cause active deformation of continental margins that are predicted by plate tectonic theory to be passive. We will analyse Australia's 'passive' southern margin because it is an ideal natural laboratory in which to investigate the causes of the deformation of 'passive' continental margins. Hydrocarbon exploration interest and investment ....Compressional Deformation and Uplift of Australia's Passive Southern Margin. The key project benefit will be to advance our understanding of the processes which cause active deformation of continental margins that are predicted by plate tectonic theory to be passive. We will analyse Australia's 'passive' southern margin because it is an ideal natural laboratory in which to investigate the causes of the deformation of 'passive' continental margins. Hydrocarbon exploration interest and investment has waned along much of Australia's southern margin because of lack of understanding of the relative age of the formation of potentially hydrocarbon-bearing structures and the timing of hydrocarbon charge. This project will clarify their relative ages.Read moreRead less
Present-Day Stress and Tectonics of Deltas and Deepwater Fold-Thrust Belts. The key benefit of the project will be to advance our understanding of the geological processes that control the development of deltas, and of the fold-thrust belts located in deepwater adjacent to deltas, by analysis of five examples worldwide. Global hydrocarbon exploration is successfully moving to deepwater fold-thrust belts. One of Australia's key under-explored frontier petroleum provinces is the Australian Bight B ....Present-Day Stress and Tectonics of Deltas and Deepwater Fold-Thrust Belts. The key benefit of the project will be to advance our understanding of the geological processes that control the development of deltas, and of the fold-thrust belts located in deepwater adjacent to deltas, by analysis of five examples worldwide. Global hydrocarbon exploration is successfully moving to deepwater fold-thrust belts. One of Australia's key under-explored frontier petroleum provinces is the Australian Bight Basin. The prospective parts of this basin comprise delta/deepwater fold-thrust belt systems and analysis of more data-rich systems worldwide will help provide the geological knowledge required to help re-invigorate exploration in the Bight Basin.Read moreRead less
Crustal Stress Field of SE Asia. The key project benefit is to advance our fundamental understanding of tectonic processes such as sedimentary basin development and continental collision. It has major implications for natural hazard assessment and resources exploration in SE Asia, consistent with Australia's participation in the APEC Energy Working Group. The project has major ancillary benefits. It will strengthen international links between Australia, SE Asia, the UK, USA and Germany. It will ....Crustal Stress Field of SE Asia. The key project benefit is to advance our fundamental understanding of tectonic processes such as sedimentary basin development and continental collision. It has major implications for natural hazard assessment and resources exploration in SE Asia, consistent with Australia's participation in the APEC Energy Working Group. The project has major ancillary benefits. It will strengthen international links between Australia, SE Asia, the UK, USA and Germany. It will provide high-quality research and training experience for the APD and PhD student involved, whom will spend time with research groups and oil companies in Australia, UK, USA and SE Asia. Finally, the project will increase the institutional capacity for contract research in SE Asia.Read moreRead less
Present-Day Crustal Stresses of NW Borneo: Neotectonics of an Active Collisional Margin. The key project benefit is to advance understanding of continental collision and the early evolution of mountain belts using a region with an unrivalled database from hydrocarbon exploration. The project will improve understanding of Australia's northern, collisional margins and petroleum exploration there, which is less advanced than in Borneo. The project has major ancillary benefits. It will strengthen in ....Present-Day Crustal Stresses of NW Borneo: Neotectonics of an Active Collisional Margin. The key project benefit is to advance understanding of continental collision and the early evolution of mountain belts using a region with an unrivalled database from hydrocarbon exploration. The project will improve understanding of Australia's northern, collisional margins and petroleum exploration there, which is less advanced than in Borneo. The project has major ancillary benefits. It will strengthen international links between Australia, Brunei, Malaysia and Germany. It will provide high quality research training for the RA and PhDs whom will spend time at the Universities of Brunei and Karlsruhe and at Shell Brunei and Shell Malaysia. Finally the project will increase the institutional capacity for contract research in SE Asia.Read moreRead less
The Australasian Stress Map. The contemporary crustal stress field of Australasia is both more complex and more poorly constrained than that of other continental areas. The crustal stress field controls processes including earthquake hazard; the stability of mines, tunnels and boreholes, and; fluid flow in groundwater aquifers and oil reservoirs. Using data from oil exploration wells, earthquakes and recent geological activity, this project will increase from around 300 to 1000 the number of rel ....The Australasian Stress Map. The contemporary crustal stress field of Australasia is both more complex and more poorly constrained than that of other continental areas. The crustal stress field controls processes including earthquake hazard; the stability of mines, tunnels and boreholes, and; fluid flow in groundwater aquifers and oil reservoirs. Using data from oil exploration wells, earthquakes and recent geological activity, this project will increase from around 300 to 1000 the number of reliable stress determinations available for Australia, New Zealand and Papua New Guinea. The stress field will be modelled in order to improve our understanding of its origin and variability.Read moreRead less