Results 31 to 40 of about 1,920 (208)

Exhumation of (ultra-)high-pressure terranes: concepts and mechanisms [PDF]

open access: yesSolid Earth, 2013
The formation and exhumation of high and ultra-high-pressure, (U)HP, rocks of crustal origin appears to be ubiquitous during Phanerozoic plate subduction and continental collision events.
C. J. Warren
doaj   +1 more source

Spatial Variations of Tectonic Uplift - Subducting Plate Effects on the Guerrero Forearc, Mexico

open access: yesFrontiers in Earth Science, 2021
Uplift is the predominant factor controlling fluvial systems in tectonically deforming regions. Mountains along subduction zones force incision, aggradation, or sinuosity modifications, showing differential uplift and variations in erosion rates, in ...
María Teresa Ramírez-Herrera   +2 more
doaj   +1 more source

Insights from elastic thermobarometry into exhumation of high-pressure metamorphic rocks from Syros, Greece [PDF]

open access: yesSolid Earth, 2021
Retrograde metamorphic rocks provide key insights into the pressure–temperature (P–T) evolution of exhumed material, and resultant P–T constraints have direct implications for the mechanical and thermal conditions of subduction interfaces.
M. Cisneros   +8 more
doaj   +1 more source

Subduction‐Induced Back‐Arc Extension Versus Far‐Field Stretching: Contrasting Modes for Continental Marginal Break‐Up

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Continental break‐up is an ingredient of plate tectonics and the Wilson cycle. During the evolution of the Tethyan Realm since the Paleozoic, a series of ribbon‐like (micro‐)continents are split from the Gondwana and drifted northwards to the Eurasian ...
Shuting Yang   +4 more
doaj   +1 more source

Fate of Carbonates in the Earth’s Mantle (10-136 GPa)

open access: yesFrontiers in Earth Science, 2022
Earth carbon cycle shapes the evolution of our planet and our habitats. As a key region of carbon cycle, subduction zone acts as a sole channel transporting supracrustal carbonate rocks down to the mantle, balancing carbon budget between the Earth’s ...
Jing Gao, Xiang Wu, Xueyin Yuan, Wen Su
doaj   +1 more source

A hypothesis of the obliquely subducted Gagua Ridge below Nanao Basin based on uplifted structures in Ryukyu forearc

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2023
At the southernmost part of the Ryukyu subduction zone, six long-offset multi-channel seismic profiles were collected across three forearc basins and the southern Ryukyu accretionary prism during the TAIGER experiment in 2009 and the TAICRUST project in ...
Jia-Ming Deng   +4 more
doaj   +1 more source

Metamorphic evolution and $P$–$T$ path of the Posada Valley amphibolites: new insights on the Variscan high pressure metamorphism in NE Sardinia, Italy

open access: yesComptes Rendus. Géoscience, 2021
The Posada Valley amphibolites in the inner zone of Variscan Sardinia are characterized by garnet porphyroblasts containing epidote, titanite, quartz, clinopyroxene, amphibole, and plagioclase concentrated in the garnet core.
Scodina, Massimo   +2 more
doaj   +1 more source

Numerical modelling of seismic wave propagation along the plate contact of the Hellenic Subduction Zone���the influence of a deep subduction channel [PDF]

open access: yesGeophysical Journal International, 2009
SUMMARY We model seismic wave propagation from intermediate depth earthquakes in a subduction zone using a 2-D Chebyshev pseudospectral method. Particular attention is directed to the influence of a deep, low-viscosity subduction channel on top of the plate contact where metamorphic rocks may be exhumed by forced return flow.
Essen, K.   +4 more
openaire   +3 more sources

Spatial Variation of Subduction Zone Fluids during Progressive Subduction: Insights from Serpentinite Mud Volcanoes

open access: yes, 2022
Geological processes at subduction zones control seismicity, plutonism and volcanism, and geochemical cycling between the oceans, crust, and mantle. The down-going plate experiences metamorphism, and the associated dehydration and fluid flow alters the ...
Ryan, Jeffrey   +5 more
core   +2 more sources

Integrated thermodynamic and thermomechanical numerical modeling: A useful method for studying deep Earth water and carbon cycling

open access: yesGeosystems and Geoenvironment, 2022
The plate tectonic evolution controls the mass and energy circulation between the Earth's surface and interior, during which the volatiles (e.g., water and carbon) could also accompany the tectonic up- and down-wellings.
Zhong-Hai Li
doaj   +1 more source

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