文章基本信息

标题：Geology and structure of the Malpaso caldera and El Ocote ignimbrite, Aguascalientes, Mexico
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作者：Jorge Nieto-Obregón ; Gerardo Aguirre-Díaz
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2008
卷号：3
出版社：IOP Publishing
摘要：A new caldera, named Malpaso, is reported west of the city of Aguascalientes, Mexico. The Malpaso caldera is a volcano-tectonic depression, highly fractured and faulted, and was filled by voluminous pyroclastic products related to the caldera collapse. Due to these characteristics it as a graben caldera. It is truncated by younger normal faults of the Calvillo and Aguascalientes grabens. In this work we present a summary of the geologic and structural observations on this caldera, as well as a description of the main caldera product, the high-grade El Ocote ignimbrite.
关键词：caldera, ignimbrite, faults, graben