Results 101 to 110 of about 74,121 (304)

Metallogeny of subduction zones

open access: yesVestnik MGTU, 2017
The paper deals with the multistage mechanism of the Earth's crust enrichment in ore elements in underthrust zones. The processes of metamorphism and the formation of hydrothermal solutions at pulling of the watered oceanic lithospheric plate into the subduction zone have been described.
Sorokhtin N. O.   +2 more
openaire   +2 more sources

Seismicity relocation and fault structure near the Leech River Fault Zone, southern Vancouver Island [PDF]

open access: yes, 2018
Relatively low rates of seismicity and fault loading have made it challenging to correlate microseismicity to mapped surface faults on the forearc of southern Vancouver Island.
Li, Ge   +3 more
core   +1 more source

Targeting deeply-sourced seeps along the Central Volcanic Zone [version 1; peer review: 2 approved, 1 approved with reservations]

open access: yesOpen Research Europe
At convergent margins, plates collide producing a subduction process. When an oceanic plate collides with a continental plate, the denser (i.e., oceanic) plate subducts beneath the less dense (continental) plate.
Deborah Bastoni   +26 more
doaj   +1 more source

Response of the mantle to flat slab evolution: Insights from local splitting beneath Peru [PDF]

open access: yes, 2014
The dynamics of flat subduction, particularly the interaction between a flat slab and the overriding plate, are poorly understood. Here we study the (seismically) anisotropic properties and deformational regime of the mantle directly above the Peruvian ...
Barazangi   +52 more
core   +2 more sources

Subduction Zone Magmas

open access: yes, 2013
The importance of subduction zones, which are major sites of earthquakes, mountain building, and basalt–andesite–rhyolite volcanism, was nicely presented by Stern (Rev Geophys 40:1012, 2002): “Subduction zones are also our planet’s largest recycling system.
openaire   +1 more source

Earthquake Relocation Using Double Difference Method for 2D Modelling of Subducting Slab and Back Arc Thrust in West Nusa Tenggara

open access: yesJurnal Penelitian Fisika dan Aplikasinya, 2018
West Nusa Tenggara is classified into earthquake prone zone as it is located between subduction and back arc thrust earthquake sources. Accurate hypocenter determination in this area is necessary for strong motion calculation and earthquake source zone ...
Rian Mahendra Taruna   +1 more
doaj   +1 more source

Subduction zone geochemistry

open access: yesGeoscience Frontiers, 2019
Abstract Crustal recycling at convergent plate boundaries is essential to mantle heterogeneity. However, crustal signatures in the mantle source of basaltic rocks above subduction zones were primarily incorporated in the form of liquid rather than solid phases. The physicochemical property of liquid phases is determined by the dehydration behavior of
openaire   +1 more source

Rigorous statistical detection and characterization of a deviation from the Gutenberg-Richter distribution above magnitude 8 in subduction zones

open access: yes, 2002
We present a quantitative statistical test for the presence of a crossover c0 in the Gutenberg-Richter distribution of earthquake seismic moments, separating the usual power law regime for seismic moments less than c0 from another faster decaying regime ...
Pisarenko, V. F., Sornette, D.
core   +1 more source

Evolving Subduction Zone Thermal Structure Drives Extensive Forearc Mantle Wedge Hydration

open access: yesAGU Advances
Hydration of the subduction zone forearc mantle wedge influences the downdip distribution of seismicity, the availability of fluids for arc magmatism, and Earth's long term water cycle.
G. S. Epstein   +4 more
doaj   +1 more source

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