Carbonate-Rich Dikes in Ignimbrites of Southeastern Nevada

Abstract

Research Article| May 01, 1971 Carbonate-Rich Dikes in Ignimbrites of Southeastern Nevada THOMAS T TIEH; THOMAS T TIEH Department of Geology, Texas A & M University, College Station, Texas 77843 Search for other works by this author on: GSW Google Scholar EARL COOK EARL COOK Department of Geology, Texas A & M University, College Station, Texas 77843 Search for other works by this author on: GSW Google Scholar Author and Article Information THOMAS T TIEH Department of Geology, Texas A & M University, College Station, Texas 77843 EARL COOK Department of Geology, Texas A & M University, College Station, Texas 77843 Publisher: Geological Society of America Received: 17 Jul 1970 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1971, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1971) 82 (5): 1293–1304. https://doi.org/10.1130/0016-7606(1971)82[1293:CDIIOS]2.0.CO;2 Article history Received: 17 Jul 1970 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation THOMAS T TIEH, EARL COOK; Carbonate-Rich Dikes in Ignimbrites of Southeastern Nevada. GSA Bulletin 1971;; 82 (5): 1293–1304. doi: https://doi.org/10.1130/0016-7606(1971)82[1293:CDIIOS]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 In southern Lincoln County, Nevada, carbonate-rich dikes ranging in width from a few inches to about 40 ft intrude rhyolitic ignimbrites of the late Tertiary Kane Wash Formation. In the cryptocrystalline calcite matrix that forms 40 to 55 percent of the rock are embedded xenoliths of rhyolitic tuff and abundant crystals and crystal fragments of quartz and sanidine. Minor constituents are iron-oxide granules, andradite crystals, basalt fragments, and small glass particles, many of which are tubular. This intrusive rock lacks the trace-element composition and petrologic associations of accepted carbonatites. Carbon, oxygen, and strontium isotope ratios are not diagnostic. The chemical composition, the texture of the calcite, the forms of the glass particles, and the occurrence in ignimbrites that contain primary calcite indicate that the intrusive melt was formed by mixing of a silicate magma and melted limestone. 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.