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Argentina · Campo volcánico

Crater Basalt Volcanic Field

Tipo
Campo volcánico
Altitud
1344 m
Última erupción
Desconocido
The Crater Basalt Volcanic Field in Argentina covers around 700 km2, with a portion of the field shown in this July 2019 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 33 km across). There are at least nine scoria cones across the field as well as the mostly pahoehoe lava flows reaching out to 5 km.
The Crater Basalt Volcanic Field in Argentina covers around 700 km2, with a portion of the field shown in this July 2019 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 33 km across). There are at least nine scoria cones across the field as well as the mostly pahoehoe lava flows reaching out to 5 km. · Foto: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/).
Tipo
Campo volcánico
País
Argentina
Región
América del Sur / Southern Andean Volcanic Arc
Altitud
1344 m
Coordenadas
-42.018, -70.194
Última erupción
Desconocido
Contexto tectónico
Intraplaca / Corteza continental (> 25 km)
Forma volcánica
Grupo volcánico
Roca principal
Traquibasalto / Tefrita basanita
Resumen geológico

The Crater Basalt volcanic field in the northern Patagonia region of Argentina covers an area of about 700 km2. The field lies about 400 km E of the Peru-Chile trench along the broad regional Gastre fault system. Nine cinder cones and spatter cones produced blocky lava flows of alkali basaltic, basanitic, and trachybasaltic composition. One of the largest features is Cerro Fermín, a cinder cone that produced multiple lava flows. The highest cone, Cerro Negro, fed lava flows that traveled to the W, E, and then NE, where its distal margin is cut by a provincial road. Some of the lava flows, such as those from Cerro Ventana and Cerro Contreras, cover Holocene shorelines of playa lakes.

Historial de erupciones

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Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.