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Christina H. Maschmeyer, Scott M. White, Brian M. Dreyer and David A. Clague
The oceanic crust consists mostly of basalt, but more evolved compositions may be far more common than previously thought. To aid in distinguishing rhyolite from basaltic lava and help guide sampling and understand spatial distribution, we constructed a ...
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Valentina Magni, John Naliboff, Manel Prada and Carmen Gaina
Back-arc basins in continental settings can develop into oceanic basins, when extension lasts long enough to break up the continental lithosphere and allow mantle melting that generates new oceanic crust. Often, the basement of these basins is not only c...
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Denisse de la Fuente,Óscar Figueroa,Daniel Demaiffe,Mauricio Mella,Paul Duhart,David Quiroz,Jorge Muñoz,Verónica Oliveros
Pág. 24 - 53
Upper Cretaceous intrusives of limited extent crop out in the Coastal Cordillera near of Valdivia (39º48? S), 100 km west of the main topographic divide of the Andean Cordillera. Given that plutonic rocks of the same age crop out at the same latitudes in...
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Vittorio Scribano and Serafina Carbone
Geochemical characteristics of middle ocean ridge basalts (MORBs) testify partial melting of spinel-peridotite mixed with a few amounts of garnet-pyroxenite. The latter can be considered either autochthonous products of the crystallization of partial mel...
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Lucía Villar-Muñoz, Iván Vargas-Cordero, Joaquim P. Bento, Umberta Tinivella, Francisco Fernandoy, Michela Giustiniani, Jan H. Behrmann and Sergio Calderón-Díaz
Large amounts of gas hydrate are present in marine sediments offshore Taitao Peninsula, near the Chile Triple Junction. Here, marine sediments on the forearc contain carbon that is converted to methane in a regime of very high heat flow and intense rock ...
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Lucía Villar-Muñoz, Iván Vargas-Cordero, Joaquim P. Bento, Umberta Tinivella, Francisco Fernandoy, Michela Giustiniani, Jan H. Behrmann and Sergio Calderón-Díaz
Large amounts of gas hydrate are present in marine sediments offshore Taitao Peninsula, near the Chile Triple Junction. Here, marine sediments on the forearc contain carbon that is converted to methane in a regime of very high heat flow and intense rock ...
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Encarnación Puga, Antonio Díaz de Federico, Mark Fanning, José Miguel Nieto, José Ángel Rodríguez Martínez-Conde, Miguel Ángel Díaz Puga, José Antonio Lozano, Gianluca Bianchini, Claudio Natali and Luigi Beccaluva
The Betic Ophiolites consist of numerous tectonic slices, metric to kilometric in size, of eclogitized mafic and ultramafic rocks associated to oceanic metasediments, deriving from the Betic oceanic domain. The outcrop of these ophiolites is aligned alon...
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