Results 61 to 70 of about 1,920 (208)

Ductile Extrusion Triggered by Continental Collision in NE Brazil

open access: yesTerra Nova, EarlyView.
ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser   +6 more
wiley   +1 more source

Exhumation of high‐pressure metamorphic rocks in a subduction channel: A numerical simulation [PDF]

open access: yesTectonics, 2002
High‐pressure metamorphic rocks provide evidence that in subduction zones material can return from depths of more than 100 km to the surface. The pressure‐temperature paths recorded by these rocks are variable, mostly revealing cooling during decompression, while the time constraints are generally narrow and indicate that the exhumation rates can be on
Taras V. Gerya   +2 more
openaire   +1 more source

Serpentinites and serpentinites within a fossil subduction channel : La Corea mélange, eastern Cuba

open access: yes, 2021
A variety of metaultramafic (serpentinite) rocks in La Corea mélange, Sierra de Cristal, eastern Cuba, show differences in chemical, textural and mineralogical characteristics demonstrating a variety of protoliths.
García-Casco, A.   +4 more
core  

Inferring the Paleo‐Location of Proto‐Arc Magmas During Subduction Infancy in the Izu‐Bonin‐Mariana

open access: yesGeochemistry, Geophysics, Geosystems
Subduction zones are one of the principal drivers of the modern‐day plate tectonics, but the processes that develop as incipient subduction zones mature are yet to be understood.
Julia M. Ribeiro, Taras Gerya
doaj   +1 more source

Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment

open access: yesTerra Nova, EarlyView.
ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley   +1 more source

Seismoturbidite record as preserved at core sites at the Cascadia and Sumatra–Andaman subduction zones [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2013
Turbidite deposition along slope and trench settings is evaluated for the Cascadia and Sumatra–Andaman subduction zones. Source proximity, basin effects, turbidity current flow path, temporal and spatial earthquake rupture, hydrodynamics, and topography ...
J. R. Patton   +6 more
doaj   +1 more source

Orphaning Regimes: The Missing Link Between Flattened and Penetrating Slab Morphologies

open access: yesFrontiers in Earth Science, 2020
Slab orphaning is a newly discovered phenomenological behavior, where the slab tip breaks off at the top of the lower mantle (~660 km depth) and is abandoned by its parent slab.
Antoniette Greta Grima   +2 more
doaj   +1 more source

Seismic visibility of a deep subduction channel – insights from numerical simulation of high-frequency seismic waves emitted from intermediate depth earthquakes [PDF]

open access: yesSolid Earth, 2014
Return flow in a deep subduction channel (DSC) has been proposed to explain rapid exhumation of high pressure–low temperature metamorphic rocks, entirely based on the fossil rock record.
W. Friederich   +4 more
doaj   +1 more source

Seismological structure of the Carpathian-Pannonian region of central Europe [PDF]

open access: yes, 2010
The extensional Pannonian Basin is set within the convergent arc of the Alpine-Carpathian mountain system in central Europe. Various models have been proposed as mechanisms to drive extension within this collisional setting.
Dando, Benjamin David Edward
core  

How far does a subduction wedge follow lubrication dynamics?

open access: yes, 2021
Applications of the lubrication dynamics in subduction zones generally assume very small wedge taper angles (α 
Mandal, Nibir, Maiti, Giridas
core   +1 more source

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