Английская Википедия:Cerro Chanka
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Coord Cerro Chanka (also known as Chanka or Pabellon) is a Pleistocene lava dome in the Andes. It is part of the Altiplano-Puna volcanic complex. Potassium-argon dating indicates that the dome last erupted 119.8±5.4 ka ago.[1] Another reported age is 1.5±0.1 mya.[2]
The dome is located on the northwestern side of Cerro del Azufre. It is constructed from three lobes with diameters of Шаблон:Convert. The flanks of the dome are steep and talus and lava blocks lie at its feet.[1]
Cerro Chanka has a SiO2 content of 66% and is of calc-alkaline origin. The lavas are potassium-rich dacitic and rhyolitic save for an andesitic mafic component, and rich in crystals.[1]
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