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Apacheta-Aguilucho volcanic complex
Apacheta-Aguilucho ( and , respectively)〔 is a group of volcanoes located in the northern Altiplano-Puna volcanic complex which has produced lava flows in the Plio-Pleistocene. The volcanoes were constructed in five stages over local ignimbrites from andesites and dacites, as well as a basement made from Tertiary epiclastic material. A geothermal system is located in the local Incaliri graben. The graben is filled with breccias, tuffs and lavas, and is buried by thick ashfalls. Hydrothermal alteration has occurred on many flanks of the volcanoes and on the eastern flank a debris avalanche deposit has been identified, likely formed by the collapse of hydrothermally altered and destabilized material.〔〔
Apacheta's western side and the northeastern parts of the Chac-Inca dome have moraines from to the last glacial stage.〔 The complex is located northwest of El Tatio and northeast of Calama, Chile.〔
==Geology==
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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