Nevado de Chachani
Location: 16°11' S, 71°31' W
Elevation: 6.075 m
Arequipa, March 1985
The andesitic-dacitic Nevado de Chachani volcanic complex, located 
immediately north of Arequipa, consists of a 320 sq km group of
Pleistocene lava domes, a stratovolcano complex, and a flank shield
volcano. The central, 6057-m-high Nevado Chachani complex contains
multiple vents along an arcuate line, including a well-defined summit
crater at the western end. Two early Pleistocene ignimbrites were erupted
from now-buried vents of older edifices. Thin lava flows from Chachani
volcano overlie glacial moraines. Pleistocene lava domes form the
northern end of the complex. The 8-km-wide, late Pleistocene to possibly
Holocene lava shield of Pampa de Palacio on the SW side produced a
well-preserved lava flow field that represents the youngest products of the
Nevado Chachani complex (Global Volcanism Program).
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immediately north of Arequipa, consists of a 320 sq km group of
Pleistocene lava domes, a stratovolcano complex, and a flank shield
volcano. The central, 6057-m-high Nevado Chachani complex contains
multiple vents along an arcuate line, including a well-defined summit
crater at the western end. Two early Pleistocene ignimbrites were erupted
from now-buried vents of older edifices. Thin lava flows from Chachani
volcano overlie glacial moraines. Pleistocene lava domes form the
northern end of the complex. The 8-km-wide, late Pleistocene to possibly
Holocene lava shield of Pampa de Palacio on the SW side produced a
well-preserved lava flow field that represents the youngest products of the
Nevado Chachani complex (Global Volcanism Program).
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