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・ Cerro do Inhacurutum
・ Cerro Dominador Solar Thermal Plant
・ Cerro Doña Ana
・ Cerro Doña Inés
・ Cerro Doña Juana
・ Cerro al Volturno
・ Cerro Alconcha
・ Cerro Alto
・ Cerro Alto (San Luis Obispo County, California)
・ Cerro Alto Limestone
・ Cerro Alto Mountain
・ Cerro Amaculla
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・ Cerro Aracamuni
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Cerro Archibarca
・ Cerro Arenal Natural Reserve
・ Cerro Arenales
・ Cerro Arenas
・ Cerro Armazones
・ Cerro Armazones Observatory
・ Cerro Ascotan
・ Cerro Autana
・ Cerro Avispa
・ Cerro Azul
・ Cerro Azul (Chile volcano)
・ Cerro Azul (Ecuador volcano)
・ Cerro Azul (municipality)
・ Cerro Azul de Copán National Park
・ Cerro Azul District


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Cerro Archibarca : ウィキペディア英語版
Cerro Archibarca

Cerro Archibarca is a volcano in the Andes. It covers a surface area of . Lava flows descend from a conical edifice.〔 It was active 11 million years ago.〔 The youngest deposits are eroded andesites on the northern side.〔
A major volcaniclastic unit is associated with Archibarca, named the La Torre formation after the valley where its lower brigth red unit reaches a thickness of . The red unit is formed from unconsolidated pyroclastics with spherical clasts ( up to ). Granite and pumice are materials also present in this unit. The upper white unit is a thick pyroclastic flow from Archibarca. A thick rhyolitic flow with banding structures is also present as well as an associated lava dome that intruded the La Torre formation on the volcano's southern side.〔
Andesites from this volcano are partly derived from crustal assimilation, with the crustal component constituting 40% of total rock.〔 The Caballo Muerto and Archibarca ignimbrites may be derived from this volcano.〔
== References ==



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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