Alteration of Clay Minerals by Weathering in Wisconsin Tills

Research Article| July 01, 1956 ALTERATION OF CLAY MINERALS BY WEATHERING IN WISCONSIN TILLS JOHN B DROSTE JOHN B DROSTE UNIVERSITY OF ILLINOIS, URBANA, ILLINOIS Search for other works by this author on: GSW Google Scholar Author and Article Information JOHN B DROSTE UNIVERSITY OF ILLINOIS, URBANA, ILLINOIS Publisher: Geological Society of America Received: 06 Jun 1955 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1956, 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 (1956) 67 (7): 911–918. https://doi.org/10.1130/0016-7606(1956)67[911:AOCMBW]2.0.CO;2 Article history Received: 06 Jun 1955 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 JOHN B DROSTE; ALTERATION OF CLAY MINERALS BY WEATHERING IN WISCONSIN TILLS. GSA Bulletin 1956;; 67 (7): 911–918. doi: https://doi.org/10.1130/0016-7606(1956)67[911:AOCMBW]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 Alteration of clay minerals by weathering in Tazewell, early Cary, and late Cary tills of the Northwest Allegheny Plateau was determined by X-ray technique. In each locality 10 samples closely spaced through the entire profile from fresh unweathered till to the A soil zone were studied. Each zone in the weathering profile of till is characterized by a specific clay-mineral assemblage. The well-crystallized illite in the fresh unweathered till is changed by hydration of the intermica sheets, and in the A soil zone illite-montmorillonite mixed layers are abundant. The well-organized chlorite of the fresh unweathered till is altered by hydration of the brucite sheets culminating in the development of vermiculite in the A soil zone. 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.