Geology of the Yucca Mountain site area, southwestern Nevada
January 1, 2007
Yucca Mountain in southwestern Nevada is a prominent, irregularly shaped upland formed by a thick apron of Miocene pyroclastic-flow and fallout tephra deposits, with minor lava flows, that was segmented by through-going, large-displacement normal faults into a series of north-trending, eastwardly tilted structural blocks. The principal volcanic-rock units are the Tiva Canyon and Topopah Spring Tuffs of the Paintbrush Group, which consist of volumetrically large eruptive sequences derived from compositionally distinct magma bodies in the nearby southwestern Nevada volcanic field, and are classic examples of a magmatic zonation characterized by an upper crystal-rich (>10% crystal fragments) member, a more voluminous lower crystal-poor (
Citation Information
| Publication Year | 2007 |
|---|---|
| Title | Geology of the Yucca Mountain site area, southwestern Nevada |
| DOI | 10.1130/2007.1199(03) |
| Authors | W. Keefer, J.W. Whitney, D.C. Buesch |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Memoir of the Geological Society of America |
| Index ID | 70035635 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Geology, Minerals, Energy, and Geophysics Science Center |