Calc-alkaline and alkaline miocene and calc-alkaline recent volcanism in the Southernmost Patagonian Cordillera, Chile

A. Puig, M. Herve, M. Suarez, A. D. Saunders

Resultado de la investigación: Article

32 Citas (Scopus)

Resumen

In the southernmost Patagonian Cordillera (south of Lat. 54°45′) previously unrecorded calc-alkaline dacites and andesites, and adjacent alkali-basalts, were dated at 21 and 18 Ma (K-Ar), respectively. In the same area post-glacial low-K calc-alkaline andesites, identified at Isla Cook, represent the southernmost Recent volcanism recorded so far in South America, about 400 km south of Monte Burney, previously known as the southernmost Recent volcano. The association of contemporaneous calc-alkaline and alkali volcanics suggests a subduction-related environment for the Miocene volcanism, and the Recent calc-alkaline volcanics indicate that currently there is a small component of subduction of the Antarctic Plate beneath the South American part of the Scotia Plate.

Idioma originalEnglish
Páginas (desde-hasta)149-163
Número de páginas15
PublicaciónJournal of Volcanology and Geothermal Research
Volumen21
N.º1-2
DOI
EstadoPublished - 1984

Huella dactilar

andesite
Chile
Alkalies
cordillera
volcanology
volcanism
alkalies
subduction
Miocene
Volcanoes
alkali basalt
dacite
Postglacial
basalt
volcanoes
volcano
South America

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

Citar esto

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abstract = "In the southernmost Patagonian Cordillera (south of Lat. 54°45′) previously unrecorded calc-alkaline dacites and andesites, and adjacent alkali-basalts, were dated at 21 and 18 Ma (K-Ar), respectively. In the same area post-glacial low-K calc-alkaline andesites, identified at Isla Cook, represent the southernmost Recent volcanism recorded so far in South America, about 400 km south of Monte Burney, previously known as the southernmost Recent volcano. The association of contemporaneous calc-alkaline and alkali volcanics suggests a subduction-related environment for the Miocene volcanism, and the Recent calc-alkaline volcanics indicate that currently there is a small component of subduction of the Antarctic Plate beneath the South American part of the Scotia Plate.",
author = "A. Puig and M. Herve and M. Suarez and Saunders, {A. D.}",
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Calc-alkaline and alkaline miocene and calc-alkaline recent volcanism in the Southernmost Patagonian Cordillera, Chile. / Puig, A.; Herve, M.; Suarez, M.; Saunders, A. D.

En: Journal of Volcanology and Geothermal Research, Vol. 21, N.º 1-2, 1984, p. 149-163.

Resultado de la investigación: Article

TY - JOUR

T1 - Calc-alkaline and alkaline miocene and calc-alkaline recent volcanism in the Southernmost Patagonian Cordillera, Chile

AU - Puig, A.

AU - Herve, M.

AU - Suarez, M.

AU - Saunders, A. D.

PY - 1984

Y1 - 1984

N2 - In the southernmost Patagonian Cordillera (south of Lat. 54°45′) previously unrecorded calc-alkaline dacites and andesites, and adjacent alkali-basalts, were dated at 21 and 18 Ma (K-Ar), respectively. In the same area post-glacial low-K calc-alkaline andesites, identified at Isla Cook, represent the southernmost Recent volcanism recorded so far in South America, about 400 km south of Monte Burney, previously known as the southernmost Recent volcano. The association of contemporaneous calc-alkaline and alkali volcanics suggests a subduction-related environment for the Miocene volcanism, and the Recent calc-alkaline volcanics indicate that currently there is a small component of subduction of the Antarctic Plate beneath the South American part of the Scotia Plate.

AB - In the southernmost Patagonian Cordillera (south of Lat. 54°45′) previously unrecorded calc-alkaline dacites and andesites, and adjacent alkali-basalts, were dated at 21 and 18 Ma (K-Ar), respectively. In the same area post-glacial low-K calc-alkaline andesites, identified at Isla Cook, represent the southernmost Recent volcanism recorded so far in South America, about 400 km south of Monte Burney, previously known as the southernmost Recent volcano. The association of contemporaneous calc-alkaline and alkali volcanics suggests a subduction-related environment for the Miocene volcanism, and the Recent calc-alkaline volcanics indicate that currently there is a small component of subduction of the Antarctic Plate beneath the South American part of the Scotia Plate.

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U2 - 10.1016/0377-0273(84)90020-9

DO - 10.1016/0377-0273(84)90020-9

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JO - Journal of Volcanology and Geothermal Research

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