The Geology and Petrology of Enigmatic Rhyolites at Graveyard and Gordon Buttes, Mount Hood Quadrangle, Oregon
type: CreativeWork
author: Westby, Elizabeth G.
keywords: Rhyolite -- Oregon -- Wasco County -- Analysis, Volcanic ash tuff etc -- Oregon -- Wasco County -- Analysis, Petrology -- Oregon -- Wasco County, Volcanology
date modified: 2026-07-27T20:33:01Z
provider: Portland State University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Portland State University