Results 41 to 50 of about 120,399 (317)
Submergence and uplift associated with the giant 1833 Sumatran subduction earthquake: Evidence from coral microatolls [PDF]
, 1999 The giant Sumatran subduction earthquake of 1833 appears as a large emergence event in fossil coral microatolls on the reefs of Sumatra's outer-arc ridge.
Edwards, R. Lawrence +4 more
core +1 more source
Wet subduction versus cold subduction
Geophysical Research Letters, 2005 In situ X‐ray diffraction study of post‐spinel transformation in hydrous peridotite (2 wt.% H2O) indicates that the phase boundary is shifted to higher pressures by 0.6 GPa relative to anhydrous peridotite at 1473 K, whereas, it shows no obvious shift at high temperature around 1873 K. A linear equation for the boundary is P (GPa) = −0.002 T (K) + 26.3,
Konstantin D. Litasov +4 more
openaire +1 more source
Introduction to subduction zones [PDF]
pure and applied geophysics, 1988 Subduction zones present many facades to those that observe them. From obvious features to obscure yet important processes, there are many aspects of subduction zones to observe and explain. Notable examples of obvious features are volcanoes, earthquakes, mountain belts, and deep sea trenches; while on the other hand, the unseen process of sediment ...
Ruff, Larry J., Kanamori, Hiroo
openaire +4 more sources
Plate tectonics: When ancient continents collide [PDF]
, 2017 The geological record preserves scant evidence for early plate tectonics. Analysis of eclogites — metamorphic rocks formed in subduction zones — in the Trans-Hudson mountain belt suggests modern-style subduction may have operated 1,800 million years ...
Clare Warren +4 more
core +1 more source
TerraceM-2: A Matlab® Interface for Mapping and Modeling Marine and Lacustrine Terraces
Frontiers in Earth Science, 2019 The morphology of marine and lacustrine terraces has been largely used to measure past sea- and lake-level positions and estimate vertical deformation in a wealth of studies focused on climate and tectonic processes.
Julius Jara-Muñoz +5 more
doaj +1 more source
What Controls Maximum Magnitudes of Giant Subduction Earthquakes?
Geochemistry, Geophysics, Geosystems, 2020 Giant earthquakes with magnitudes above 8.5 occur only in subduction zones. Despite the developments made in observing large subduction zone earthquakes with geophysical instruments, the factors controlling the maximum size of these earthquakes are still
Iskander A. Muldashev +1 more
doaj +1 more source
Water, oceanic fracture zones and the lubrication of subducting plate boundaries - insights from seismicity [PDF]
, 2015 We investigate the relationship between subduction processes and related seismicity for the Lesser Antilles Arc using the Gutenberg-Richter law. This power lawdescribes the earthquakemagnitude distribution, with the gradient of the cumulative magnitude ...
Baptie, B +8 more
core +1 more source
Inevitability of Plate Tectonics on Super-Earths [PDF]
, 2007 The recent discovery of super-Earths (masses less or equal to 10 earth-masses) has initiated a discussion about conditions for habitable worlds. Among these is the mode of convection, which influences a planet's thermal evolution and surface conditions ...
O'Connell, Richard J. +2 more
core +1 more source
Mesozoic-Cenozoic mafic magmatism in Sanandaj-Sirjan Zone, Zagros Orogen (Western Iran): geochemical and isotopic inferences from Middle Jurassic and Late Eocene gabbros [PDF]
, 2017 One of the consequences of Neo-Tethys ocean subduction beneath the Central Iranian Micro-continent (CIMC) is the development of rare gabbroic intrusions in the Malayer-Boroujerd Plutonic Complex (MBPC) located in the Sanandaj-Sirjan Zone (SaSZ) of the ...
Deevsalar, Reza +8 more
core +1 more source
Kinematics of subduction and subduction‐induced flow in the upper mantle [PDF]
Journal of Geophysical Research: Solid Earth, 2004 Results of fluid dynamical experiments are presented to model the kinematics of lithospheric subduction in the upper mantle. The experiments model a dense high‐viscosity plate (subducting lithosphere) overlying a less dense low‐viscosity layer (upper mantle). The overriding lithosphere is not incorporated.
openaire +2 more sources