Results 121 to 130 of about 29,724 (300)

Comment on “A preserved early Ediacaran magmatic arc at the northernmost part of the transversal zone - central domain of the Borborema Province, Northeast of South America”, by B. B. de Brito Neves et al. (2016)

open access: yesBrazilian Journal of Geology
: The recent proposition for a long-lived (635-580 Ma) magmatic arc in the central portion of the Borborema Province is critically evaluated. Evidence favoring subduction include: low-T, high-P metamorphism; local occurrence of retroeclogites; and the ...
Sérgio Pacheco Neves
doaj   +1 more source

U-Pb zircon geochronology, Sr-Nd isotope geochemistry, and petrogenesis of oxidant granitoids at Keybarkuh, southwest of Khaf

open access: yesJournal of Economic Geology, 2012
Keybarkuh area is located 70 km southwest of Khaf, Khorasan Razavi province. The study area is situated in northeastern Lut block. The rock units in the area are Paleozoic metamorphic rocks and Cretaceous to Tertiary subvolcanic intrusions intruded as ...
Ehsan Salati   +5 more
doaj  

Petrology of blueschist and meta-greywacke along the Turkmeni-Ordib fault (Turkmeni area, SE of Anarak)

open access: yesJournal of Economic Geology, 2015
Introduction The occurrence of blueschist metamorphic facies is believed to mark the existence of former subduction zones. This facies is represented in the main constituents of subduction-accretion complexes, where it occurs in separate tectonic ...
Fereshteh Bayat, Ghodrat Torabi
doaj  

A systematic search for tectonic tremor and low-frequency earthquakes in the Atacama segment of the Chilean subduction zone (24$^\circ$S-31$^\circ$S) turns up empty [PDF]

open access: yesarXiv
Subduction megathrusts release stress not only seismically through earthquakes, but also through creep and transient slow deformation, called slow slip events (SSEs). Understanding the interplay between fast and slow slip is essential for illuminating the deformation processes on the subduction interface. The Chilean subduction margin, while one of the
arxiv  

Editorial: Seeing convergent margin processes through metamorphism

open access: yesFrontiers in Earth Science, 2022
Yi Chen   +6 more
doaj   +1 more source

Earthquake source processes and subduction regime in the Santa Cruz Islands region [PDF]

open access: green, 1990
Fumiko Tajima   +4 more
openalex   +1 more source

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