Abstract
Research Article| February 01, 1957 PALEOZOIC EVOLUTION OF THE GEOSYNCLINAL MARGIN NORTH OF THE SNAKE RIVER PLAIN, IDAHO-MONTANA ROBERT SCHOLTEN ROBERT SCHOLTEN DEPARTMENT OF GEOLOGY, THE PENNSYLVANIA STATE UNIVERSITY, UNIVERSITY PARK, PA. Search for other works by this author on: GSW Google Scholar GSA Bulletin (1957) 68 (2): 151–170. https://doi.org/10.1130/0016-7606(1957)68[151:PEOTGM]2.0.CO;2 Article history received: 28 Feb 1956 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 SCHOLTEN; PALEOZOIC EVOLUTION OF THE GEOSYNCLINAL MARGIN NORTH OF THE SNAKE RIVER PLAIN, IDAHO-MONTANA. GSA Bulletin 1957;; 68 (2): 151–170. doi: https://doi.org/10.1130/0016-7606(1957)68[151:PEOTGM]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 hinge belt between the Paleozoic Rocky Mountain geosyncline of central Idaho and the cratonic shelf of southwestern Montana is a critical zone with respect to stratigraphic changes. Structural data and isopach patterns indicate that this zone was recurrently uplifted during the Paleozoic. The Skull Canyon Disturbance during the Cambrian or Early Ordovician gave rise to a sharp angular unconformity truncating Upper Precambrian (Belt) rocks. Additional isolated uplifts were produced in Devonian and Early or Middle Mississippian times.The hinge is thought to be a zone of weakness in the crust which was especially responsive to early stresses in the geosyncline. This same zone became the site of the greatest deformation during the Laramide orogeny, yielding along a prominent belt of major overthrusts. 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.
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