A5009869062- Geological and Geochemical Analysis
- Geological and Geophysical Studies
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geology and Paleoclimatology Research
- Geological formations and processes
- Geological Studies and Exploration
- Paleontology and Stratigraphy of Fossils
- Geomagnetism and Paleomagnetism Studies
- Hydrocarbon exploration and reservoir analysis
- Geophysical and Geoelectrical Methods
- Geochemistry and Geologic Mapping
- Geological Modeling and Analysis
- Methane Hydrates and Related Phenomena
- Geophysical Methods and Applications
- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Marine and environmental studies
- Reservoir Engineering and Simulation Methods
- Geological and Tectonic Studies in Latin America
- Spectroscopy and Laser Applications
- Geotechnical and Geomechanical Engineering
- Planetary Science and Exploration
- Earthquake Detection and Analysis
- Geophysics and Gravity Measurements
University of Tasmania
2023-2025
Northwest University
2019-2023
The University of Sydney
2014-2023
State Key Laboratory of Continental Dynamics
2019-2023
Continental (United Kingdom)
2022
University of Botswana
2021
Commonwealth Scientific and Industrial Research Organisation
2002-2019
California Institute of Technology
2019
Data61
2019
Getech (United Kingdom)
2005-2012
We present a revised global plate motion model with continuously closing boundaries ranging from the Triassic at 230 Ma to day, assess differences among alternative absolute models, and review tectonic events. Relatively high mean rates of approximately 9–10 cm yr −1 between 140 120 may be related transient accelerations driven by successive emplacement sequence large igneous provinces during that time. An event ∼100 is most clearly expressed in Indian Ocean reflect initiation Andean-style...
Abstract GPlates is an open‐source, cross‐platform plate tectonic geographic information system, enabling the interactive manipulation of plate‐tectonic reconstructions and visualization geodata through geological time. allows building topological models representing mosaic evolving boundary networks time, useful for computing velocity fields as surface conditions mantle convection investigating physical chemical exchanges material between deep Earth along boundaries. The ability to...
Abstract Global deep‐time plate motion models have traditionally followed a classical rigid approach, even though deformation is known to be significant. Here we present global Mesozoic–Cenozoic deforming model that captures the progressive extension of all continental margins since initiation rifting within Pangea at ~240 Ma. The also includes major failed rifts and compressional along collision zones. outlines timing regional episodes are reconstructed from wealth published tectonic...
Aeromagnetic data are routinely presented as contour or color-shaded maps of the total magnetic intensity (TMI). An interpreter's task is to identify features (anomalies) contained within map and qualitatively and/or quantitatively interpret them into geologic structures at depth. If contains anomalies that have large intensities, bodies might be considered magnetizations, shallow depths. Small amplitude superimposed on these could masked even missed by an interpreter. Thus interpreter use...
We have developed a new method for interpretation of gridded magnetic data which, based on derivatives the tilt angle, provides simple linear equation, similar to 3D Euler equation. Our estimates both horizontal location and depth bodies, but without specifying prior information about nature sources (structural index). Using source-position estimates, source can then be inferred. Theoretical simulations over complex that give rise noise-corrupted noise-free data, illustrate ability provide...
Abstract We present an updated oceanic crustal age grid and a set of complementary grids including spreading rate, asymmetry, direction, obliquity. Our data is based on selected magnetic anomaly identifications the plate tectonic model Müller et al. (2019, 10.1029/2018TC005462 ). find mean crust 64.2 Myr, slightly older than previous estimates, mainly due to inclusion pockets Mesozoic aged in Atlantic Mediterranean improvements Jurassic Pacific triangle. This partly compensated by additional...
Detailed global plate motion models that provide a continuous description of boundaries through time are an effective tool for exploring processes both at and below the Earth's surface. A new generation numerical mantle dynamics pre- post-Pangea timeframes requires kinematic descriptions with full reconstructions extending into Paleozoic (410 Ma). Current cover times characterised by large speeds trench migration rates because they assume lowermost structures rigid fixed time. When used as...
The mechanisms underlying the deformation and eventual destruction of Earth's cratons remain enigmatic, despite proposed links to subduction deep mantle plume processes. Here, we study North China Craton using four-dimensional flow models plate–mantle system since late Mesozoic, integrating constraints from lithospheric deformation, seismic tomography, evolution surface topography. We find that flat-slab induced landward shortening thickening, while subsequent rollback caused...
We present a new, 5 min sediment thickness grid for the Australian‐Antarctic region (60°E–155°E, 30°S–70°S). New seismic reflection and refraction data have been used to add detail conjugate Australian Antarctic margins intervening ocean floor where regional patterns were poorly known previously. On margins, estimates computed from velocity‐depth functions sonobuoy/refraction velocity solutions ground‐truthed against data. For Southeast Indian Ridge abyssal plains, contours Geli et al....
Abstract. Paleogeographic reconstructions are important to understand Earth's tectonic evolution, past eustatic and regional sea level change, paleoclimate ocean circulation, deep Earth resources constrain interpret the dynamic topography predicted by mantle convection models. Global paleogeographic maps have been compiled published, but they generally presented as static with varying map projections, different time intervals represented plate motion models that underlie reconstructions....
Despite decades of study the prerift configuration and early rifting history between Australia Antarctica is not well established. The plate boundary system during Cretaceous includes evolving Kerguelen–Broken Ridge Large Igneous Province in west as conjugate passive transform margin segments Australian Antarctic continents. Previous rigid reconstruction models have highlighted difficulty satisfying all available observations within a single coherent history. We investigate range scenarios...
Magnetic anomaly identifications underpin plate tectonic reconstructions and form the primary dataset from which age of oceanic lithosphere seafloor spreading regimes in ocean basins can be determined.Although these are an invaluable resource, their usefulness to wider scientific community has been limited due lack a central infrastructure organize, host update interpretations.We have developed open-source, community-driven online as repository for quality-checked magnetic all basins.We...
Published plate tectonic models for the Australian‐Antarctic pair imply geologically improbable scenarios at either or both ends of Cretaceous rift and spreading system. Controversy also exists around location motion boundary extending west Australia‐Antarctica, through Kerguelen Plateau region. We present a model relative motions among India, Australia, Antarctica from onset continental rifting to establishment rapid seafloor spreading, ~43 Ma. The conforms wide range geological/geophysical...
We describe a powerful method to explore spatio-temporal relationships within geological and geophysical data sets by analyzing the context of tectonic reconstructions. GPlates is part new generation plate reconstruction software that incorporates functionality familiar from GIS software with added dimension time. Here we use GPlates reconstruct terranes, grids, and paleomagnetic alternative models the assembly Western Australia configuration Rodinia. With ability rapidly visualize...
Abstract. Movements of tectonic plates often induce oblique deformation at divergent plate boundaries. This is in striking contrast with traditional conceptual models rifting and rifted margin formation, which assume 2-D where the rift velocity oriented perpendicular to boundary. Here we quantify validity this assumption by analysing kinematics major continent-scale systems a global reconstruction from onset Pangea breakup until present day. We evaluate obliquity joint examination relative...