Silent Canyon volcanic center, Nye County, Nevada.
Noble, Donald C; Sargent, K A; Mehnert, H H; Ekren, E B; Byers-F-M Jr. (1968) Silent Canyon volcanic center, Nye County, Nevada. Memoir - Geological Society of America. Pages 65-75. 1968.
| Authors | Noble, Donald C; Sargent, K A; Mehnert, H H; Ekren, E B; Byers-F-M Jr. |
|---|---|
| Year | 1968 |
| Title | Silent Canyon volcanic center, Nye County, Nevada. |
| Source | Memoir - Geological Society of America. Pages 65-75. 1968. |
| Publisher | Geological Society of America GSA. Boulder, CO, United States. 1968. |
| Document type | Serial |
| ISSN | 0072-1069 |
| GeoRef | 1968-059422 |
| Keywords | Belted-Range-Tuff; Cenozoic-; igneous-rocks; Miocene-; Neogene-; Nevada-; Nye-County-Nevada; petrology-; Silent-Canyon-caldera; Silent-Canyon-volcanic-center; Tertiary-; United-States; volcanic-rocks |
| Notes | 110 |
Abstract
Rocks of this late Miocene volcanic center, on eastern Pahute Mesa, consist chiefly of comendites with subordinate trachyte soda rhyolite and trachyte. Distinct and unusual mineralogy and trace- and major-element chemistry indicate close genetic relationship. First emplaced were numerous lava flows, domes and dikes over a 450 sq mi area, with most eruptions in the area of later caldera collapse. Two compound ash-flow sheets then erupted--the Tub Spring and Grouse Canyon members of the Belted Range Tuff; the latter covered 3,000 sq mi. Only the eastern third of Silent Canyon caldera is now exposed or reflected in overlying tuffs. This source of the Belted Range Tuff is indicated by variations in underlying tuffs, one Grouse Canyon unit and thick later tuffs and lavas only near the caldera, and a concentric arc of small welded tuff vents outside it.