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Geophysical and geochronological constraints on the extent and age of mafic intrusions in the basement of west Texas and eastern New Mexico
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1989
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GeophysicsGeological EngineeringMafic IntrusionsEngineeringStructural GeologyGeomorphologyEastern New MexicoGeographyRegional GeologyExploration GeologyGeologyEarth SciencesGeological DataGeochronologyEarth ScienceWest TexasGeochronological ConstraintsTectonics
Research Article| November 01, 1989 Geophysical and geochronological constraints on the extent and age of mafic intrusions in the basement of west Texas and eastern New Mexico G. Randy Keller; G. Randy Keller 1Department of Geological Sciences, University of Texas, El Paso, Texas 79968-0555 Search for other works by this author on: GSW Google Scholar John M. Hills; John M. Hills 1Department of Geological Sciences, University of Texas, El Paso, Texas 79968-0555 Search for other works by this author on: GSW Google Scholar Mark R. Baker; Mark R. Baker 1Department of Geological Sciences, University of Texas, El Paso, Texas 79968-0555 Search for other works by this author on: GSW Google Scholar E. Timothy Wallin E. Timothy Wallin 2Department of Geology, University of Kansas, Lawrence, Kansas 66045-2124 Search for other works by this author on: GSW Google Scholar Author and Article Information G. Randy Keller 1Department of Geological Sciences, University of Texas, El Paso, Texas 79968-0555 John M. Hills 1Department of Geological Sciences, University of Texas, El Paso, Texas 79968-0555 Mark R. Baker 1Department of Geological Sciences, University of Texas, El Paso, Texas 79968-0555 E. Timothy Wallin 2Department of Geology, University of Kansas, Lawrence, Kansas 66045-2124 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1989) 17 (11): 1049–1052. https://doi.org/10.1130/0091-7613(1989)017<1049:GAGCOT>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation G. Randy Keller, John M. Hills, Mark R. Baker, E. Timothy Wallin; Geophysical and geochronological constraints on the extent and age of mafic intrusions in the basement of west Texas and eastern New Mexico. Geology 1989;; 17 (11): 1049–1052. doi: https://doi.org/10.1130/0091-7613(1989)017<1049:GAGCOT>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract A deep drill hole recently completed on the Central basin platform of west Texas provides a rare look at almost 5 km of basement rocks. Most of the crystalline rocks encountered were basic and ultrabasic in composition. A variety of geophysical data is available from the bore hole and vicinity. The petrographic and geophysical data suggest that a large, layered, basic intrusion was penetrated by the well. Geochronologic (U-Pb) data indicate an age of about 1.1 Ga for this intrusion. This date has significant tectonic implications because it indicates that commonly accepted analogies with the southern Oklahoma aulacogen (550 Ma rifting) are not valid. However, it is interesting to note that this feature formed during another widespread period of rifting (Keweenawan). This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.