Transition zone between the upper diatreme and lower diatreme: origin and significance at Round Butte, Hopi Buttes volcanic field, Navajo Nation, Arizona
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DOI: 10.1007/s00445-019-1285-x
Abstract: Round Butte is a small but complex Miocene diatreme that crops out ~ 190 m below the pre-eruptive surface, in the southeastern part of the Hopi Buttes volcanic field. Erosional remnants consist of a diatreme 170–190 m in… read more here.
Keywords: hopi buttes; field; buttes volcanic; diatreme ... See more keywords