Stratigraphic Relations of Members of the Needles Range Formation at Type Localities in Southwestern Utah

Research Article| October 01, 1973 Stratigraphic Relations of Members of the Needles Range Formation at Type Localities in Southwestern Utah M. G. BEST; M. G. BEST 1Geology Department, Brigham Young University, Provo, Utah 84601 Search for other works by this author on: GSW Google Scholar R. T. SHUEY; R. T. SHUEY 2Department of Geological and Geophysical Sciences, University of Utah, Salt Lake City, Utah 84112 Search for other works by this author on: GSW Google Scholar C. F. CASKEY; C. F. CASKEY 2Department of Geological and Geophysical Sciences, University of Utah, Salt Lake City, Utah 84112 Search for other works by this author on: GSW Google Scholar S. K. GRANT S. K. GRANT 3Department of Geology and Geophysics, University of Missouri at Rolla, Rolla, Missouri 65401 Search for other works by this author on: GSW Google Scholar GSA Bulletin (1973) 84 (10): 3269–3278. https://doi.org/10.1130/0016-7606(1973)84<3269:SROMOT>2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation M. G. BEST, R. T. SHUEY, C. F. CASKEY, S. K. GRANT; Stratigraphic Relations of Members of the Needles Range Formation at Type Localities in Southwestern Utah. GSA Bulletin 1973;; 84 (10): 3269–3278. doi: https://doi.org/10.1130/0016-7606(1973)84<3269:SROMOT>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 The Needles Range Formation is one of the most extensive of the middle Tertiary ash-flow sheets in the Great Basin of Nevada and western Utah. The original definition of the formation by Mackin (1960) named two members and mentioned three type localities. Our recent studies have shown that this published information now requires revision. To provide a firm basis for stratigraphic studies of the Needles Range Formation, this paper presents geologic maps, measured sections, and paleomagnetic data for three type localities in southwestern Utah. These include the northern Needles Range and Wah Wah Springs localities previously mentioned by Mackin, plus a new locality, northwest of Lund, Utah. The sequence of members at these localities, from oldest to youngest, is: Cottonwood Wash Tuff (new name), Wah Wah Springs Turf, Lund Tuff (new name), and Wallaces Peak Tuff (new name). We recommend abandonment of the name “Minersville Tuff.” 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.