U.S. Department of EnergyOffice of Scientific and Technical Information
Volcano-tectonic history of Crater Flat, southwestern Nevada, as suggested by new evidence from drill hole USW-VH-1 and vicinity
Abstract
New evidence for a possible resurgent dome in the caldera related to eruption of the Bullfrog Member of the Crater Flat Tuff has been provided by recent drilling of a 762-meter (2501-foot) hole in central Crater Flat. Although no volcanic units were penetrated by the drill hole (USW-VH-1), the positive aeromagnetic anomaly in the vicinity of the drill hole appears to result in part from the unusually thick, densely welded tuff of the Bullfrog. Major units penetrated include alluvium, basalt of Crater Flat, Tiva Canyon and Topopah Spring Members of the Paintbrush Tuff, and Prow Pass and Bullfrog Members of the Crater Flat Tuff. In addition, the drill hole provided the first subsurface hydrologic information for the area. The water table in the hole is at about 180 meters (600 feet), and the temperature gradient appears slightly higher than normal for the region.
- Authors:
- Publication Date:
- Research Org.:
- US Geological Survey, Denver, CO (United States)
- OSTI Identifier:
- 59637
- Report Number(s):
- USGS-OFR-82-457
ON: DE82016957
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 1982
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; 05 NUCLEAR FUELS; NEVADA TEST SITE; TECTONICS; VOLCANISM; TUFF; RADIOACTIVE WASTE FACILITIES; SITE SELECTION; RADIOACTIVE WASTE STORAGE; UNDERGROUND STORAGE; BOREHOLES; GEOLOGIC DEPOSITS; Yucca Mountain Project
Citation Formats
Carr, W J. Volcano-tectonic history of Crater Flat, southwestern Nevada, as suggested by new evidence from drill hole USW-VH-1 and vicinity. United States: N. p., 1982.
Web.
Carr, W J. Volcano-tectonic history of Crater Flat, southwestern Nevada, as suggested by new evidence from drill hole USW-VH-1 and vicinity. United States.
Carr, W J. 1982.
"Volcano-tectonic history of Crater Flat, southwestern Nevada, as suggested by new evidence from drill hole USW-VH-1 and vicinity". United States.
@article{osti_59637,
title = {Volcano-tectonic history of Crater Flat, southwestern Nevada, as suggested by new evidence from drill hole USW-VH-1 and vicinity},
author = {Carr, W J},
abstractNote = {New evidence for a possible resurgent dome in the caldera related to eruption of the Bullfrog Member of the Crater Flat Tuff has been provided by recent drilling of a 762-meter (2501-foot) hole in central Crater Flat. Although no volcanic units were penetrated by the drill hole (USW-VH-1), the positive aeromagnetic anomaly in the vicinity of the drill hole appears to result in part from the unusually thick, densely welded tuff of the Bullfrog. Major units penetrated include alluvium, basalt of Crater Flat, Tiva Canyon and Topopah Spring Members of the Paintbrush Tuff, and Prow Pass and Bullfrog Members of the Crater Flat Tuff. In addition, the drill hole provided the first subsurface hydrologic information for the area. The water table in the hole is at about 180 meters (600 feet), and the temperature gradient appears slightly higher than normal for the region.},
doi = {},
url = {https://www.osti.gov/biblio/59637},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Dec 31 00:00:00 EST 1982},
month = {Fri Dec 31 00:00:00 EST 1982}
}