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edit translation [exit edit]Move your mouse over text: the text highlights and you click and edit it directly. Aliso volcanostratovolcano 4267 m / 13,999 ft
Ecuador, -0.53°S / -78°W Current status: dormant (1 out of 5) [hide map] [enlarge map]
Typical eruption style: explosive, effusive (lava domes)
Aliso volcano eruptions: 2000 years ago (?), 2450 BC (?) Last earthquakes nearby:
Background:from Smithsonian / GVP Aliso volcano information:The largely unexplored complex contains a curved summit ridge on the west with older andesitic lava flows and tundra-like vegetation, and rhyolitic and dacitic lava domes in a wet cloud-forest environment on the lower eastern flanks. The Pumayacu center on the SE flank contains several lava domes along a NNE axis parallel to the Andean Thrust Fault System (TFZ). Morphologically young andesitic lava flows occur along the flat-topped ridge above Baeza town. The Pumayacu center erupted pyroclastic-flow deposits of late Pleistocene and Holocene age. One pyroclastic-flow deposit was dated at about 4400 years Before Present, and a pumice lapilli layer overlies a ceramic-rich cultural horizon thought to be about 2000 years old |
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