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Risco Plateado volcano

stratovolcano 4999 m / 16,401 ft
Central Chile and Argentina, South America, -34.93°S / -70°W
Current status: dormant (1 out of 5)
Risco Plateado volcano books
Typical eruption style: explosive
Risco Plateado volcano eruptions: unknown, probably in the past 10,000 years No recent earthquakes
TimeMag. / DepthDistanceLocation
Risco Plateado is a volcanic complex about 10 km south of the Caldera del Atuel and consists of a stratovolcano cut by a 4-km-wide caldera. The age of the last eruption is known but thought to be Holocene (within the past 11,000 years). There are youthful-looking basalt lava flows from the SW rim crater that extend NE to the Rio del Atuel.

Background:

2 eruptive centers are located on the SW and NE caldera rims along a NE trending fault zone, extending to a parasitic cone on the lower NE flank 8 km from the caldera.
The earlier products of Risco Plateado volcano were dacitic in composition, while younger lavas are mostly basaltic-andesite lava flows.
Lava flows from the SW-rim center extend westward beyond the flanks of the complex and those from the NE-rim center flow into the caldera and down its NE flank.
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Source: GVP


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