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Whole-Rock Rb-Sr Age of Metasedimentary Rocks Below the Stillwater Complex, Montana

1969; Geological Society of America; Volume: 80; Issue: 8 Linguagem: Inglês

10.1130/0016-7606(1969)80[1605

1943-2674

James L. Powell, W. R. Skinner, David Walker,

Geological and Geochemical Analysis

Research Article| August 01, 1969 Whole-Rock Rb-Sr Age of Metasedimentary Rocks Below the Stillwater Complex, Montana J. L POWELL; J. L POWELL Department of Geology, Oberlin College, Oberlin, Ohio Search for other works by this author on: GSW Google Scholar W. R SKINNER; W. R SKINNER Department of Geology, Oberlin College, Oberlin, Ohio Search for other works by this author on: GSW Google Scholar DAVID WALKER DAVID WALKER Department of Geology, Oberlin College, Oberlin, Ohio PRESENT ADDRESS: HARVARD UNIVERSITY, CAMBRIDGE, MASSACHUSETTS (WALKER) Search for other works by this author on: GSW Google Scholar Author and Article Information J. L POWELL Department of Geology, Oberlin College, Oberlin, Ohio W. R SKINNER Department of Geology, Oberlin College, Oberlin, Ohio DAVID WALKER PRESENT ADDRESS: HARVARD UNIVERSITY, CAMBRIDGE, MASSACHUSETTS (WALKER) Department of Geology, Oberlin College, Oberlin, Ohio Publisher: Geological Society of America Received: 09 Dec 1968 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1969, 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 (1969) 80 (8): 1605–1612. https://doi.org/10.1130/0016-7606(1969)80[1605:WRAOMR]2.0.CO;2 Article history Received: 09 Dec 1968 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation J. L POWELL, W. R SKINNER, DAVID WALKER; Whole-Rock Rb-Sr Age of Metasedimentary Rocks Below the Stillwater Complex, Montana. GSA Bulletin 1969;; 80 (8): 1605–1612. doi: https://doi.org/10.1130/0016-7606(1969)80[1605:WRAOMR]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 Eight metasedimentary rocks selected from a suite collected below the Stillwater Complex in the Beartooth Mountains, Montana, yield a whole-rock Rb-Sr age of 2730 ± 150 m.y. (λ = 1.39 × 10−11/yr). The samples represent rocks located 0.4 to 6 miles from the lower contact of the Complex, and the nearer samples are definitely within the contact metamorphic aureole of the Complex. The age may be the time of sedimentation, or the time of isotopic homogenization resulting from the intrusion of the Stillwater Complex. 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.