Results 81 to 90 of about 1,464 (199)

Chromian spinel geochemistry as a petrogenetic indicator in the chromitites and peridotites of the Bajgan Complex, Western Makran [PDF]

open access: yesپترولوژی
IntroductionEconomic chromite deposits are very common in ophiolite belts. These deposits usually occur in the uppermost horizons of the ophiolite mantle sequence or within the ultramafic cumulitic rocks at the base of the crustal sequence (González ...
Leila Vahedi   +2 more
doaj   +1 more source

Morphotectonics of the central Muertos thrust belt and Muertos Trough (northeastern Caribbean) [PDF]

open access: yes, 2009
Multibeam bathymetry data acquired during the 2005 Spanish R/V Hespérides cruise and reprocessed multichannel seismic profiles provide the basis for the analysis of the morphology and deformation in the central Muertos Trough and Muertos thrust belt ...
A. Carbó-Gorosabel   +74 more
core   +1 more source

Crustal and Lithospheric Structures Beneath an Ophiolite Nappe, Southern New Caledonia, Southwest Pacific

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 5, May 2025.
Abstract To understand ophiolite emplacement mechanisms in New Caledonia, southwest Pacific, we image crustal and lithospheric structures beneath southern Grande Terre, using seismic waveform data from a network (ITOPNC) of permanent and temporary stations (October 2018–November 2019). Surface wave dispersion indicates a 1–2 km thick ophiolite nappe on
Shao‐Jinn Chin   +4 more
wiley   +1 more source

80 years of research on tsunamigenic earthquakes in the Makran subduction zone (1945–2025): a review- part B: tsunamis in the MSZ

open access: yesFrontiers in Earth Science
The Makran Subduction Zone (MSZ) is a tectonically active margin with a documented history of tsunamis that have repeatedly impacted coastal communities along the northern Arabian Sea.
Mouloud Hamidatou   +5 more
doaj   +1 more source

Reconstructing the total shortening history of the NW Himalaya. [PDF]

open access: yes, 2003
The onset of India-Asia contact can be dated with both biostratigraphic analysis of syn-collisional sedimentary successions deposited on each side of the Indus Suture zone, and by radiometric dating of Indian crustal rocks which have undergone subduction
Baratoux, David   +5 more
core   +3 more sources

Geophysical Investigations of the Fujairah Basin, East Coast of United Arab Emirates: Insights Into Tectonic Evolution

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract The Fujairah basin in the Gulf of Oman experienced a complex tectonic evolution related to Late Cretaceous ophiolite obduction and Oligocene‐Miocene Zagros continental collision. The structure of the foreland basin in Oman‐UAE is well‐known, but the structure and evolution of the hinterland basin behind the obducted ophiolite and underlying ...
M. Y. Ali   +5 more
wiley   +1 more source

Cenozoic evolution of Neotethys and implications for the causes of plate motions [PDF]

open access: yes, 2003
Africa-North America-Eurasia plate circuit rotations, combined with Red Sea rotations and new estimates of crustal shortening in Iran define the Cenozoic history of the Neotethyan ocean between Arabia and Eurasia. The new constraints indicate that Arabia-
McQuarrie, N.   +3 more
core   +2 more sources

Sumatra Seismogenic Zone - The role of input materials in shallow seismogenic slip and forearc plateau development [PDF]

open access: yes, 2017
Drilling the input materials of the north Sumatran subduction zone, part of the 5000 km long Sunda subduction zone system and the origin of the Mw ~9.2 earthquake and tsunami that devastated coastal communities around the Indian Ocean in 2004, was ...
Dugan, Brandon   +3 more
core   +1 more source

Lithospheric Thinning of the Northeastern Arabian Margin Revealed by Matrix‐Free Teleseismic Traveltime Tomography

open access: yesGeophysical Research Letters, Volume 52, Issue 3, 16 February 2025.
Abstract The obduction of the Tethys oceanic lithosphere is documented by the Semail ophiolite along the northeastern Arabian continental margin. Although the ophiolite is continuous and of similar age across the region, the eastern and western segments display distinct geological contrasts.
Gaoshan Guo   +4 more
wiley   +1 more source

Subduction Zone Obliquity Dictates Global Trench‐Parallel Inner Forearc Deformation

open access: yesAGU Advances, Volume 6, Issue 1, February 2025.
Abstract Although subduction zones are characterized by convergence, the upper plates of subduction zones exhibit a diverse range of deformation styles that are often inconsistent with regional convergence. While several theories have been proposed to explain these variations, the underlying factors driving these differences are still not fully ...
Kristin D. Morell   +3 more
wiley   +1 more source

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