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Ignimbrites, trachytes, and sedimentary rocks of the Precambrian Thunderbird Group, Franklin Mountains, El Paso, Texas

1981; Geological Society of America; Volume: 92; Issue: 2 Linguagem: Inglês

10.1130/0016-7606(1981)92 2.0.co;2

1943-2674

William F. Thomann,

Mineralogy and Gemology Studies

Research Article| February 01, 1981 Ignimbrites, trachytes, and sedimentary rocks of the Precambrian Thunderbird Group, Franklin Mountains, El Paso, Texas WILLIAM F. THOMANN WILLIAM F. THOMANN 1Department of Geological Sciences, University of Texas at El Paso, El Paso, Texas 79968 Search for other works by this author on: GSW Google Scholar GSA Bulletin (1981) 92 (2): 94–100. https://doi.org/10.1130/0016-7606(1981)92 2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation WILLIAM F. THOMANN; Ignimbrites, trachytes, and sedimentary rocks of the Precambrian Thunderbird Group, Franklin Mountains, El Paso, Texas. GSA Bulletin 1981;; 92 (2): 94–100. doi: https://doi.org/10.1130/0016-7606(1981)92 2.0.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 SocietyGSA Bulletin Search Advanced Search Abstract Metamorphosed trachytes, ignimbrites of rhyolitic composition, and volcaniclastic rocks are recognized in the Precambrian Thunderbird Group, Franklin Mountains, near El Paso, Texas. Chemically, both the trachytes and pyroclastic rocks are alkalic. Contact metamorphism due to intrusion of the Red Bluff Granite recrystallized the Thunderbird Group to the albite-epidote hornfels facies. However, primary igneous and sedimentary structures are well preserved, as seen both in outcrops and thin sections, throughout most of the Thunderbird Group. 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.