Results 141 to 150 of about 1,254,333 (184)

Davie Ridge: Cretaceous Incipient Subduction Zone in the Mozambique Channel

81st EAGE Conference and Exhibition 2019, 2019
Summary The main objective of this study is to understand the origin of crustal features and geodynamic of the David Ridge and Angoche Basin in the Mozambique Channel as it is a crucial step in plate reconstruction as well as enabling an assessment of petroleum potential.
A. Intawong, K. Rodriguez, P. Hargreaves, N. Hodgson   +3 more
openaire   +1 more source

How serpentine peridotites can leak through subduction channels

2020
<p>Serpentinized peridotites are weaker than other mantle rocks, with an internal friction coefficient μ<sub>i</sub>~0.3 vs. ~0.6. Therefore they often promote strain localization. Serpentinite is also considerably lower in density (r=2.5-2.6 g/cm<sup>3</sup&gt ...
Paola Vannucchi, Jason Morgan, Alina Polonia, Giancarlo Molli   +3 more
openaire   +1 more source

Seismic tomography reveals contrasting styles of subduction-channel and mantle-wedge exhumation controlled by upper plate divergent motion

Gondwana Research
International audienceIn fossil subduction zones associated with massive exhumation of (ultra)high-pressure ((U)HP) rocks such as the Western Alps, the geometry and behavior of subduction-channel and mantle-wedge rocks during exhumation are still poorly ...
Elena Eva, Marco Giovanni Malusa, Silvia Pondrelli   +2 more
exaly   +2 more sources

Timing of subduction and exhumation in a subduction channel: Evidence from slab melts from La Corea Mélange (eastern Cuba)

Lithos, 2011
article i nfo High pressure igneous rocks (tonalites), generated by partial melting of subducted basaltic rocks accreted to the mantle wedge, are present in the La Corea serpentinite-matrix melange (eastern Cuba) as centimeter- to meter-sized blocks and as concordant to crosscutting veins within high-pressure parent amphibolite blocks.
I.F. Blanco-Quintero, Y. Rojas-Agramonte, A. García-Casco, A. Kröner, D.F. Mertz, C. Lázaro, J. Blanco-Moreno, P.R. Renne   +7 more
openaire   +1 more source

Double décollement zone bordering the subduction channel in an ancient erosive subduction complex: implications for seismogenesis

2007
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Vannucchi P., REMITTI, Francesca
openaire   +1 more source

Supply rate of continental materials to the deep mantle through subduction channels

Tectonophysics, 2013
Abstract Geological studies have revealed that continental materials subduct from the Earth's surface via the following three mechanisms: tectonic erosion, sediment subduction, and direct subduction of immature oceanic arcs. Then, the continental materials are transported through subduction channels that are located between subducting slabs and ...
Hiroki Ichikawa, Kenji Kawai, Shinji Yamamoto, Masanori Kameyama   +3 more
openaire   +1 more source

Internal structure of an ancient analogue of an erosive subduction channel

2007
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REMITTI, Francesca, Vannucchi P., BETTELLI, Giuseppe, FANTONI, Laura   +3 more
openaire   +1 more source

An Ancient Subduction Channel in the Depth Range of Seismogenig Coupling

2007
Active subduction channels cannot be directly investigated due to their inaccessibility for drilling or surface examinations. Only geophysical methods, numerical modeling or sandbox simulations throw light on the shallow parts of currently active subduction channels.
Bachmann, R., Oncken, O. ; https://orcid.org/0000-0002-2894-480X, Glodny, J. ; https://orcid.org/0000-0002-7812-5933, Seifert, W.   +3 more
openaire   +1 more source

Channelization and reactive fluid flow in subducting slabs

Geochimica et Cosmochimica Acta, 2006
Thomas Zack, Timm John
openaire   +1 more source

Record of fluid-rock interaction in a long-lived subduction channel

Goldschmidt2022 abstracts, 2022
Flores, Kennet E., Gazel, Esteban, Bonnet, Guillaume, Martin, Céline, Cai, Yue, Hemming, Sidney R., Brueckner, Hannes K., Harlow, George E.   +7 more
openaire   +2 more sources