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Andagua volcanic field
The Andagua volcanic field (also known as Andahua) is a volcanic field in southern Peru. Located between the Coropuna and Sabancaya volcanoes, it is formed from a number of lava domes and scoria cones that have generated lava flows. Activity ranges from the early Pleistocene until historical times.
==Geography==
The field is located in the Orcopampa, Andahua and Ayo valleys, between the Coropuna and Sabancaya volcanoes.〔 In the Andagua valley it runs from Orcopampa to the intersection with the Colca valley.〔 The volcanic field has dimensions of 〔 and is located northeast of Coropuna volcano, north of the Colca River.〔 More than 15 centres cluster in an area of .〔 The field is subdivided into seven subfields, Antapuna, Colca Valley, Huambo-Cabanaconde, Laguna Parihuana, Molloco Valley, Pampa Jarán and Valley of the Volcanoes. The Valley of the Volcanoes is long and is a graben with numerous fault zones.〔
Coropuna, Sabancaya and El Misti are volcanoes adjacent to this group. Coropuna rises above the surrounding terrain. The latter two have been active in historical times and belong to the Barroso Group of stratovolcanoes.〔 The field is located at the northern end of the Central Volcanic Zone where it ends into the Peruvian flat-slab subduction area, where no recent volcanism is present.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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