Rb-Sr Whole-Rock Age of the Siloam Granite, Georgia: A Permian Intrusive in the Southern Appalachians

Research Article| November 01, 1973 Rb-Sr Whole-Rock Age of the Siloam Granite, Georgia: A Permian Intrusive in the Southern Appalachians LOIS M. JONES; LOIS M. JONES 1Department of Geology, University of Georgia, Athens, Georgia 30602 Search for other works by this author on: GSW Google Scholar RAYMOND L. WALKER RAYMOND L. WALKER 2Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 Search for other works by this author on: GSW Google Scholar Author and Article Information LOIS M. JONES 1Department of Geology, University of Georgia, Athens, Georgia 30602 RAYMOND L. WALKER 2Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1973) 84 (11): 3653–3658. https://doi.org/10.1130/0016-7606(1973)84<3653:RWAOTS>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation LOIS M. JONES, RAYMOND L. WALKER; Rb-Sr Whole-Rock Age of the Siloam Granite, Georgia: A Permian Intrusive in the Southern Appalachians. GSA Bulletin 1973;; 84 (11): 3653–3658. doi: https://doi.org/10.1130/0016-7606(1973)84<3653:RWAOTS>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 Siloam granite crops out in the southern half of Greene County, Georgia, within the Outer Piedmont. The granite is similar to the coarsely porphyritic postmetamorphic granites of the Charlotte Belt of North Carolina and South Carolina. The Rb-Sr whole-rock date of the Siloam granite is 269 ± 3 m.y., making this intrusive the youngest of the southern Appalachian region. Its low initial 87Sr/86Sr ratio of 0.7052 ± 0.0001 suggests an upper mantle affinity with no appreciable crustal contamination during emplacement. 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.