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Aliso VulkanSchichtvulkan 4267 m / 13,999 ft
Ecuador, -0.53°S / -78°W Aktueller Status: nicht aktiv (1 von 5)
Typische Aktivität: explosive, effusive (lava domes)
Ausbrüche des Aliso: 2000 years ago (?), 2450 BC (?) Letzte Erdbeben in der Nähe:
Beschreibung: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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