SPILITIC INTRUSION NEAR LADRON PEAK, SOCORRO COUNTY, NEW MEXICO

Abstract

Research Article| September 01, 1955 SPILITIC INTRUSION NEAR LADRON PEAK, SOCORRO COUNTY, NEW MEXICO ROBERT W DUSCHATKO; ROBERT W DUSCHATKO DEPARTMENT OF GEOLOGY, COLUMBIA UNIVERSITY, N. Y. 27, N. Y. Search for other works by this author on: GSW Google Scholar ARIE POLDERVAART ARIE POLDERVAART DEPARTMENT OF GEOLOGY, COLUMBIA UNIVERSITY, N. Y. 27, N. Y. Search for other works by this author on: GSW Google Scholar Author and Article Information ROBERT W DUSCHATKO DEPARTMENT OF GEOLOGY, COLUMBIA UNIVERSITY, N. Y. 27, N. Y. ARIE POLDERVAART DEPARTMENT OF GEOLOGY, COLUMBIA UNIVERSITY, N. Y. 27, N. Y. Publisher: Geological Society of America Received: 10 May 1954 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1955, 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 (1955) 66 (9): 1097–1108. https://doi.org/10.1130/0016-7606(1955)66[1097:SINLPS]2.0.CO;2 Article history Received: 10 May 1954 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 ROBERT W DUSCHATKO, ARIE POLDERVAART; SPILITIC INTRUSION NEAR LADRON PEAK, SOCORRO COUNTY, NEW MEXICO. GSA Bulletin 1955;; 66 (9): 1097–1108. doi: https://doi.org/10.1130/0016-7606(1955)66[1097:SINLPS]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 A suite of highly altered spilitic rocks from an intrusion 100–150 feet thick in the Yeso formation is described. There are many similar intrusions throughout the region. The alteration process is traced in detail. With falling temperatures each metallic element tends to form its own mineral or minerals with Si and Al as the only other cations. Deuteric alteration probably has been accentuated by distillation of hyperfusibles, especially sulphate radicles, from the country rocks which include much gypsum. Fine-to medium-grained albitites are the end products of differentiation, and zircon studies indicate that these rocks are partly of magmatic, partly of metasomatic origin. Five chemical analyses and results of 10 spectrographic analyses are given. 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.