HYDRATION OF NATURAL GLASS AND FORMATION OF PERLITE

Abstract

Research Article| March 01, 1966 HYDRATION OF NATURAL GLASS AND FORMATION OF PERLITE IRVING FRIEDMAN; IRVING FRIEDMAN U. S. GEOLOGICAL SURVEY, FEDERAL CENTER, DENVER, COLORADO Search for other works by this author on: GSW Google Scholar ROBERT L SMITH; ROBERT L SMITH U. S. GEOLOGICAL SURVEY, FEDERAL CENTER, DENVER, COLORADO Search for other works by this author on: GSW Google Scholar WILLIAM D LONG WILLIAM D LONG U. S. GEOLOGICAL SURVEY, FEDERAL CENTER, DENVER, COLORADO Search for other works by this author on: GSW Google Scholar Author and Article Information IRVING FRIEDMAN U. S. GEOLOGICAL SURVEY, FEDERAL CENTER, DENVER, COLORADO ROBERT L SMITH U. S. GEOLOGICAL SURVEY, FEDERAL CENTER, DENVER, COLORADO WILLIAM D LONG U. S. GEOLOGICAL SURVEY, FEDERAL CENTER, DENVER, COLORADO Publisher: Geological Society of America Received: 12 Aug 1965 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1966, 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 (1966) 77 (3): 323–328. https://doi.org/10.1130/0016-7606(1966)77[323:HONGAF]2.0.CO;2 Article history Received: 12 Aug 1965 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation IRVING FRIEDMAN, ROBERT L SMITH, WILLIAM D LONG; HYDRATION OF NATURAL GLASS AND FORMATION OF PERLITE. GSA Bulletin 1966;; 77 (3): 323–328. doi: https://doi.org/10.1130/0016-7606(1966)77[323:HONGAF]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 hydration rate of rhyolitic glass has been determined at temperatures ranging from 5° C to 100° C. The relationship between the depth of hydration, x, and time, t is x2 = kt; k varies from 0.4 μ2/103 years at 5° C to 104 μ2/103 years at 100° C; k is independent of the water pressure from a few hundredths of a centimeter to 1 atm. water pressure. The activation energy of hydration is about 20 kcal/mole.The determined hydration rates are consistent with the observation that perlite commonly forms by the hydration of shattered rhyolitic glass, either during the late cooling of a deposit or after the deposit has cooled to a surficial temperature. 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.