A5072460934- Geological and Geochemical Analysis
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Seismic Imaging and Inversion Techniques
- Geological and Geophysical Studies
- Geomagnetism and Paleomagnetism Studies
- Geochemistry and Geologic Mapping
- Seismic Waves and Analysis
- Geology and Paleoclimatology Research
- Hydrocarbon exploration and reservoir analysis
- Glycosylation and Glycoproteins Research
- Genetic factors in colorectal cancer
- Advanced Numerical Methods in Computational Mathematics
- Seismology and Earthquake Studies
- Geological Studies and Exploration
- Reservoir Engineering and Simulation Methods
- Methane Hydrates and Related Phenomena
- Monoclonal and Polyclonal Antibodies Research
- Geophysics and Gravity Measurements
- Enzyme Structure and Function
- Geophysics and Sensor Technology
- Computational Physics and Python Applications
- Geological Modeling and Analysis
- Marine and environmental studies
- Cancer Genomics and Diagnostics
Australian National University
2016-2025
University of Petroleum
2024
Zhejiang University of Water Resource and Electric Power
2024
University of Copenhagen
2024
National Institutes of Health
1963-2023
University College London
1999-2023
Barts Health NHS Trust
2023
Homerton University Hospital
2023
Royal London Hospital
2023
University College Hospital at Westmoreland Street
2023
Abstract. We present a revised estimate of Earth's surface heat flux that is based upon flow data-set with 38 347 measurements, which 55% more than used in previous estimates. Our methodology, like others, accounts for hydrothermal circulation young oceanic crust by utilising half-space cooling approximation. For the rest surface, we average different geologic domains as defined global digital geology maps; and then produce multiplying it total area domain. The averaging done on polygon set...
Abstract Transition zone slab deformation influences Earth's thermal, chemical, and tectonic evolution. However, the mechanisms responsible for wide range of imaged morphologies remain debated. Here we use 2‐D thermo‐mechanical models with a mobile trench, an overriding plate, temperature stress‐dependent rheology, 10, 30, or 100‐fold increase in lower mantle viscosity, to investigate effect initial subducting overriding‐plate ages on slab‐transition interaction. Four subduction styles...
A peptide inhibitor, having the sequence D-His-Pro-Phe-His-Phe psi [CH2-NH]Phe-Val-Tyr, with a reduced bond between two adjacent phenylalanines, has been diffused into crystals of aspartic proteinase from Rhizopus chinensis (rhizopuspepsin, EC 3.4.23.6). X-ray diffraction data to 1.8-A resolution have collected on complex, which subjected restrained least-squares refinement an R-factor (R equals sum absolute value difference observed and calculated structure factor amplitudes divided by...
We present a new computational modeling framework, Fluidity, for application to range of two-and three-dimensional geodynamic problems, with the focus here on mantle convection.The approach centers upon finite element discretization unstructured simplex meshes, which represent complex geometries in straightforward manner.Throughout simulation, mesh is dynamically adapted optimize representation evolving solution structures.The adaptive algorithm makes use anisotropic measures complexity,...
Komatiites are products of decompression melting mantle so hot that they almost exclusively restricted to the Archean. The high degree partial ( F ) and pressure P required for their generation facilitates comparison between magma composition its source. To investigate compositional variations in Archean komatiites, a global selection 38 komatiites spanning five cratons (Kaapvaal, Zimbabwe, Yilgarn, Pilbara, Superior) were analysed major trace element contents. Included Aluminium-Depleted...
Research Article| December 01, 2014 On the origin of recent intraplate volcanism in Australia D. Rhodri Davies; Davies 1Research School Earth Sciences, The Australian National University, Canberra, ACT 0200, Search for other works by this author on: GSW Google Scholar Nicholas Rawlinson 2School Geosciences, University Aberdeen, Aberdeen AB24 3UE, Scotland, UK Author and Article Information Publisher: Geological Society America Received: 17 Jul Revision 02 Sep Accepted: 03 First Online: 09...
The existence of residuals 3 s or more relative to standard travel-time tables is frequently observed between certain seismic sources and observing stations. cause these indeterminate as one can construct both sub-source sub-receiver structure which explain the observations equally well. For in some parts world, however, plate tectonics postulates a definite structure. In light this we have examined few relevant cases conclude that not only residual pattern explained by plates but further...
Abstract Numerical simulations of thermal convection in the Earth's mantle often employ a pseudoplastic rheology order to mimic plate‐like behavior lithosphere. Yet benchmark tests available literature are largely based on simple linear rheologies which viscosity is either assumed be constant or weakly dependent temperature. Here we present suite nonlinear featuring temperature, pressure, and strain rate‐dependent viscosity. Eleven different codes finite volume, element, spectral methods...
Intensive seismic refraction work has been carried out in the Red Sea a small area centred on 22° 30′ N, 37° 00′ E. Below water depths of 600 to 1400 m, material with mean velocity 4.3 km s−1 overlies layer 6.6 s−1. The refracted arrival times indicate that depth deep varies typically between 3 and 6 but is horizontally continuous. A 6.4 was measured over central trough it suggested high velocities are those new crustal emplaced process separation Arabo-Nubian continental blocks by at least...