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Guayaques

Kubah lava · Chile-Bolivia · 5598 m

The irregular 10-km-long N-S-trending chain just left of the center of this Landsat image is Cerros de Guayaques. These rhyodacitic lava domes straddle the Chile-Bolivia border. The 10-km-long chain is located immediately east of the Purico pyroclastic shield, part of which is visible on the left side of the image. A well-defined summit crater was the source of the largest lava flows, which form the lobate flows that extend 3 km to the SW. There are no records of historical activity from Guayaques volcano.
The irregular 10-km-long N-S-trending chain just left of the center of this Landsat image is Cerros de Guayaques. These rhyodacitic lava domes straddle the Chile-Bolivia border. The 10-km-long chain is located immediately east of the Purico pyroclastic shield, part of which is visible on the left side of the image. A well-defined summit crater was the source of the largest lava flows, which form the lobate flows that extend 3 km to the SW. There are no records of historical activity from Guayaques volcano. · Foto: NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology). · Wikimedia Commons
Tipe
Kubah lava
Negara
Chile-Bolivia
Wilayah
South America Volcanic Regions / Central Andean Volcanic Arc
Ketinggian
5598 m
Koordinat
-22.895, -67.566
Letusan terakhir
Tidak diketahui
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Minor
Batuan utama
Dacite
Ringkasan geologi

The Cerros de Guayaques group of N-S-trending rhyodacitic lava domes straddles the Chile-Bolivia border. The 10-km-long chain is located immediately E of the Purico pyroclastic shield. There is some evidence for Holocene activity, and the youngest domes appear to be N of the summit crater of the dome complex (de Silva and Francis, 1991). A well-defined summit crater was the source of the largest lava flows, which traveled 3 km to the SW. There are no records of historical activity.

Ringkasan Wikipedia

Ringkasan Inggris

The 10-km-long Guayaques chain of N-S-trending rhyodacitic lava domes runs across the Chile-Bolivia border about 10 km. east of the Cerro Toco - Purico Complex.

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