LATE PALAEOZOIC PALAEOGEOGRAPHY OF CENTRAL ASIA: A PALAEOBIOGEOGRAPHICAL APPROACH USING IMPROVED BIOSTRATIGRAPHY. Fossil data from Central Asia (Afghanistan, Uzbekistan, Pakistan, NW China, Mongolia, Altaids) indicate significant degree of palaeo-latitudinal variation in biogeographical patterns across the Palaeo-Tethys and its flanking shelves during Late Palaeozoic, but details of these patterns and implications for enhancing contemporaneous palaeogeographical models are virtually unknown. Thi ....LATE PALAEOZOIC PALAEOGEOGRAPHY OF CENTRAL ASIA: A PALAEOBIOGEOGRAPHICAL APPROACH USING IMPROVED BIOSTRATIGRAPHY. Fossil data from Central Asia (Afghanistan, Uzbekistan, Pakistan, NW China, Mongolia, Altaids) indicate significant degree of palaeo-latitudinal variation in biogeographical patterns across the Palaeo-Tethys and its flanking shelves during Late Palaeozoic, but details of these patterns and implications for enhancing contemporaneous palaeogeographical models are virtually unknown. This project will analyse the biogeographical patterns of Late Palaeozoic brachiopod, coral, fusulinid faunas using advanced statistical methods, and integrate biogeographical signals with palaeomagnetic data to constrain models for the Late Palaeozoic geological evolution of Central Asia-a vast region that is known to bear enormous potential for natural resources but remains geologically little explored.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668377
Funder
Australian Research Council
Funding Amount
$246,000.00
Summary
Western Australia Palaeomagnetic and Rock-magnetic Facility. The WA Palaeomagnetic and Rock-magnetic Facility is an essential piece of infrastructure for geoscience developments in WA and Australia in general. It not only serves the needs of the scientific community, but also supports resource-related projects sponsored by government and the resource industries, and serves the educational needs of postgraduate, undergraduate, and school students. Upgrading of the WA facility will enhance the res ....Western Australia Palaeomagnetic and Rock-magnetic Facility. The WA Palaeomagnetic and Rock-magnetic Facility is an essential piece of infrastructure for geoscience developments in WA and Australia in general. It not only serves the needs of the scientific community, but also supports resource-related projects sponsored by government and the resource industries, and serves the educational needs of postgraduate, undergraduate, and school students. Upgrading of the WA facility will enhance the research capacity of the WA geoscience community and maintain its international position in tectonic, palaeogeographic, and palaeoclimatic studies, and in ore genesis research.Read moreRead less
Evolution of a two billion year subduction zone: Insights from the integration of microstructure and geochronology. The dynamic evolution of the earth is fundamentally linked to its thermal history. Since, the internal heat production of the earth has changed over time, plate tectonic processes may also have changed over earth history. The manner and timing of this change is highly controversial. We aim to address the nature of tectonic processes 2 billion years ago by studying one of the wor ....Evolution of a two billion year subduction zone: Insights from the integration of microstructure and geochronology. The dynamic evolution of the earth is fundamentally linked to its thermal history. Since, the internal heat production of the earth has changed over time, plate tectonic processes may also have changed over earth history. The manner and timing of this change is highly controversial. We aim to address the nature of tectonic processes 2 billion years ago by studying one of the world's oldest subduction zones (the Usagarian belt in Tanzania). The geometry, kinematics and deformation history of the subduction complex will be integrated with radiometric age dating to quantify the style and rates of ancient tectonic processes.Read moreRead less
The dynamic strength of continents and how they break apart. Sedimentary basins formed as a result of continental extension are the source of many oil and gas and geothermal resources. The geometries of the deepest part of these basins and their temporal and thermal evolution, are essential for basin prospectivity, but can seldom be investigated directly. This Australia-based project is expected to overhaul how we understand continental deformation, which is a crucial, but relatively vaguely und ....The dynamic strength of continents and how they break apart. Sedimentary basins formed as a result of continental extension are the source of many oil and gas and geothermal resources. The geometries of the deepest part of these basins and their temporal and thermal evolution, are essential for basin prospectivity, but can seldom be investigated directly. This Australia-based project is expected to overhaul how we understand continental deformation, which is a crucial, but relatively vaguely understood, component of plate tectonics. By modelling continental extension, the project will improve our understanding of basin development, deep geometry, and heat distribution, providing the basis for new applied and specific research projects directed at enhancing energy resource exploration. Read moreRead less
Proterozoic tectonic evolution of Australia and India. Recent studies cast doubt on reconstructions of the Neoproterozoic supercontinent Rodinia, and on the tectonic coherence of East Gondwanaland (Australia, Antarctica and India). Within Australia, the relative positions of the major crustal blocks during most of the Proterozoic era remain largely unverified. Fossil magnetism in rocks of different ages from the major crustal blocks of Australia and India will be used to determine whether the ....Proterozoic tectonic evolution of Australia and India. Recent studies cast doubt on reconstructions of the Neoproterozoic supercontinent Rodinia, and on the tectonic coherence of East Gondwanaland (Australia, Antarctica and India). Within Australia, the relative positions of the major crustal blocks during most of the Proterozoic era remain largely unverified. Fossil magnetism in rocks of different ages from the major crustal blocks of Australia and India will be used to determine whether the blocks were together or were separated by large oceans during Proterozoic time. The results will place fundamental constraints on the geological, palaeogeographic, and palaeobiological evolution of Australia, Rodinia, and the early Earth as a whole.Read moreRead less
Understanding the Sibao Orogenic Belt in South China: A Part of the Rodinian Supercontinent Assembly Adjacent to Australia. The Sibao Orogenic Belt (SOB) in South China is regarded as one of the worldwide 1300-1000 Ma mountain belts that record the assembly of the supercontinent Rodinia. However, recent work suggests that some of these mountain belts, including the SOB, were probably active until 900 Ma, thus questioning parts of the early Rodinia reconstructions. In this study we aim to deter ....Understanding the Sibao Orogenic Belt in South China: A Part of the Rodinian Supercontinent Assembly Adjacent to Australia. The Sibao Orogenic Belt (SOB) in South China is regarded as one of the worldwide 1300-1000 Ma mountain belts that record the assembly of the supercontinent Rodinia. However, recent work suggests that some of these mountain belts, including the SOB, were probably active until 900 Ma, thus questioning parts of the early Rodinia reconstructions. In this study we aim to determine the ages, and geochemical and structural characteristics of key tectonic units in the SOB. This will lead to a better understanding of the assembly process of Rodinia, and events occurring in continental blocks adjacent to Australia at that time.Read moreRead less
Earth's Internal System: deep processes and crustal consequences. Outcomes will include significant new information about the structure and formation of the Earth's crust and the underlying mantle. An improved framework for interpreting the architecture of Australia and other continents will be directly relevant to exploration for world-class economic deposits, the Earth resources on which society depends. Innovations in geochemical technology and in the integration of information from geochemi ....Earth's Internal System: deep processes and crustal consequences. Outcomes will include significant new information about the structure and formation of the Earth's crust and the underlying mantle. An improved framework for interpreting the architecture of Australia and other continents will be directly relevant to exploration for world-class economic deposits, the Earth resources on which society depends. Innovations in geochemical technology and in the integration of information from geochemistry, geophysics and geodynamics will maintain our high international profile in research relevant to National Priority 1.6 (Developing Deep Earth Resources). The project and its interaction with the minerals industry will provide advanced Postgraduate training in a field critical to Australia's future.Read moreRead less
Neoproterozoic global geodynamic and climatic events: were they linked? This project will study a unique cluster of global geodynamic and climatic events 850-700 million years ago that will help us to understand the interactions between the Earth's deep mantle, its crust, and its atmospheric climate. Academic values aside, the work will bring direct benefit to the Australian industry. Knowledge on the distribution of the Neoproterozoic plume events will provide new exploration targets for Ni-Cu- ....Neoproterozoic global geodynamic and climatic events: were they linked? This project will study a unique cluster of global geodynamic and climatic events 850-700 million years ago that will help us to understand the interactions between the Earth's deep mantle, its crust, and its atmospheric climate. Academic values aside, the work will bring direct benefit to the Australian industry. Knowledge on the distribution of the Neoproterozoic plume events will provide new exploration targets for Ni-Cu-PGE and V-Ti deposits. Better constrained palaeogeography will help to locate mineral-rich crustal provinces that were once connected. Understanding climatic consequences of global geodynamic events will help to better understand and respond to climate changes. Read moreRead less
Application of the Wavelet Transform to Isostatic Analyses in Australia. Existing methods of determining the Earth's isostatic response assume ideal but unrealistic conditions. This project will develop a new technique for isostatic analysis, using the two-dimensional wavelet transform. This tool can resolve spectral components of geophysical data in the space domain, thus avoiding the problems arising during the conventional Fourier analysis. With innovative processing methods, maps of the crus ....Application of the Wavelet Transform to Isostatic Analyses in Australia. Existing methods of determining the Earth's isostatic response assume ideal but unrealistic conditions. This project will develop a new technique for isostatic analysis, using the two-dimensional wavelet transform. This tool can resolve spectral components of geophysical data in the space domain, thus avoiding the problems arising during the conventional Fourier analysis. With innovative processing methods, maps of the crustal thickness from gravity and topography data can be generated, a task usually reserved for costly seismic experiments. Analysis of the wavelet power spectrum would also benefit the exploration industry by identifying previously unknown sedimentary basins.Read moreRead less
Integrating Stress and Strain Data from the North West Shelf, Australia: Implications for Hydrocarbon Seal Integrity. Many exploration wells in the Australian North West Shelf encounter residual columns from which hydrocarbons have leaked due to fault reactivation. Recently there has been a significant increase in our knowledge of contemporary stress (from data such as borehole breakouts)
and strain (from fault reactivation styles) on the North West Shelf.
This project will integrate informati ....Integrating Stress and Strain Data from the North West Shelf, Australia: Implications for Hydrocarbon Seal Integrity. Many exploration wells in the Australian North West Shelf encounter residual columns from which hydrocarbons have leaked due to fault reactivation. Recently there has been a significant increase in our knowledge of contemporary stress (from data such as borehole breakouts)
and strain (from fault reactivation styles) on the North West Shelf.
This project will integrate information on stress and strain in order to investigate whether the current state-of-stress is consistent with
observed reactivation styles, and thus develop predictive models for
fault reactivation and hydrocarbon leakage based on the distribution of
stress and strain.Read moreRead less