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Federico Ignacio Isla,Marcela Espinosa
Pág. 94 - 109
The area involved by the triple junction between the South American, Nazca and Antarctic plates activity was affected by Quaternary glaciations. Before 12,800 yrs BP an extended ice field occupied the top of the Patagonian Andes, irradiating glaciers tow...
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Alejandro Sánchez Valenzuela,Michel de Saint-Blanquat,Francisco Hervé,Mireille Polvé,Diego Morata,Phillipe de Parseval,Mathieu Benoit
Pág. 359 - 402
In this work, we present the results of a petrographic and geochemical study that involves seven Cenozoic plutons located in a NS trending belt in western Patagonia, south of the present Chile Triple-Junction and to the east of the present magmatic arc. ...
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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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Eugenio E. Veloso,Ryo Anma,Atsushi Yamaji
Pág. 3 - 16
The repeated north and southward migration of the Chile Triple junction, offshore the Peninsula de Taitao, is expected to have imposed contrasting stress fields in the forearc for the last 6 Ma because of changes in convergence direction and rate of sub...
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Akihisa Motoki,Yuji Orihashi,Jose A. Naranjo,Daiji Hirata,Pedro Skvarca,Ryo Anma
Pág. 177 - 187
Lautaro is the volcano closest to the Chile Triple Junction in the Andean Austral Volcanic Zone. The volcanic edifice of 3,607 m a.s.l. stands out on the north-western part of the plateau of the South Patagonian Ice Field. The volcano basement is compose...
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Jose A. Naranjo,Charles R. Stern
Pág. 225 - 240
Tephra deposits exposed in road-cuts in both Chile and Argentina between approximately 42°30' to 45°S preserve evidence of four small (VEI <3 and volume <0.15 km3) and seven medium size (VEI = 3-5 and volume between 0.15 to 1 km3), or possibly larg...
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Ruth E. Murdie,Peter Styles,David J. Prior,Andrew J. Daniel
Pág. 49 - 63
New onshore gravity data have been collected in Southern Chile in the region onshore of the Chile Margin Triple Junction. The aim of the project was to investigate the effects of ridge subduction on the continental margin. The resultant Bouguer anomaly m...
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