Perù · Campo vulcanico
Andagua volcanic field
Andahua-Orcopampa
- Tipo
- Campo vulcanico
- Altitudine
- 4713 m
- Ultima eruzione
- 1490
- Tipo
- Campo vulcanico
- Paese
- Perù
- Regione
- Sud America / Central Andean Volcanic Arc
- Altitudine
- 4713 m
- Coordinate
- -15.420, -72.330
- Ultima eruzione
- 1490
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Gruppo vulcanico
- Roccia principale
- Trachiandesite / Trachiandesite basaltica
Sintesi geologica
The Andahua-Orcopampa volcanic field in the Andahua (or Andagua) valley area, 20 km ENE of Nevados de Coropuna, is a large 60 x 60 km scoria cone and lava field. Known locally as the "Valley of the Volcanoes," the field lies in a series of deep NNW-SSE-trending, en-echelon valleys: Orcopampa, Andahua, and Ayo. The field contains youthful dominantly trachyandesitic cinder cones and lava flows that have destroyed buildings and may be only a few hundred years old. The area was reported to have been active during the time of the Incas and to have "become active again" in 1913. Lava flows have repeatedly dammed the Río Andagua valley, and an existing small lake was impounded by the youngest lavas.
Sintesi da Wikipedia
Riassunto in ingleseThe Andagua volcanic field is a volcanic field in southern Peru which includes a number of cinder cones, lava domes and lava flows which have filled the Andagua Valley. The volcanic field is part of a larger volcanic province that clusters around the Colca River and is mostly of Pleistocene age, although the Andagua sector also features volcanic cones with historical activity, with the last eruption about 370 years ago. Eruptions were mostly effusive, generating lava flows, cones and small eruption columns. Future eruptions are possible, and there is ongoing fumarolic activity. Volcanic activity in the field has flooded the Andahua valley with lava flows, damming local watersheds in the Laguna de Chachas, Laguna Mamacocha and Laguna Pumajallo lakes and burying the course of the Andagua River. The Andahua valley segment of the larger volcanic province was declared a geopark in 2015.
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Storia delle eruzioni
4 registrateGlossarioCronologia dettagliata
- 1913VEI ?Metodo non indicato1913-03-06 – fine sconosciuta
- 1490 (±40 anni)VEI ?Stima geologica1490 – fine sconosciutaChilcayoc Grande
- 940 a.C. (±100 anni)VEI ?Stima geologica940 a.C. – fine sconosciutaCerro Maurus I
- 2110 a.C. (±50 anni)VEI ?Stima geologica2110 a.C. – fine sconosciutaCerro Tichsó
Vulcani nelle vicinanze
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.