A strip in Taos County, New Mexico, eight miles long and three miles wide along New Mexico Highway 3 from U.S. Hill to Talpa, Fort Burgwin Ridge, has outcrops of Precambrian metaquartzite (1800 my bp) and cataclastic granite (1760 my bp) overlain by Mississippian limestone and Pennsylvanian fan delta sediments of the western Taos Trough. Twelve cross sections are used to demonstrate (1) Pennsylvanian syndepositional vertical movements, (2) Laramide thrusting that folded the Mississippian and Pennsylvanian rocks along splay faults to the east of the Pecos-Picuris Fault (see Fig. 40), and (3) Late Miocene to present-day normal and strike slip faulting, which is related to Rio Grande Graben rifting and appears to have reactivated earlier fault zones. The north-trending structures appear to be subsidiary to the Pecos-Picuris Fault, a major geofracture that parallels the map area to the west. / text
| Identifer | oai:union.ndltd.org:UTEXAS/oai:repositories.lib.utexas.edu:2152/11232 |
| Date | 12 May 2011 |
| Creators | Chapin, Thomas Scott |
| Source Sets | University of Texas |
| Language | English |
| Detected Language | English |
| Format | electronic |
| Rights | Copyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works. |
Page generated in 0.0019 seconds