Petrochemical and geochronological studies of plutonic rocks in the southern Appalachians: III. Leucocratic adamellites of the Charlotte belt near Salisbury, North Carolina

Abstract

Research Article| March 01, 1978 Petrochemical and geochronological studies of plutonic rocks in the southern Appalachians: III. Leucocratic adamellites of the Charlotte belt near Salisbury, North Carolina J. ROBERT BUTLER; J. ROBERT BUTLER 1Department of Geology, University of North Carolina, Chapel Hill, North Carolina 27514 Search for other works by this author on: GSW Google Scholar PAUL D. FULLAGAR PAUL D. FULLAGAR 1Department of Geology, University of North Carolina, Chapel Hill, North Carolina 27514 Search for other works by this author on: GSW Google Scholar Author and Article Information J. ROBERT BUTLER 1Department of Geology, University of North Carolina, Chapel Hill, North Carolina 27514 PAUL D. FULLAGAR 1Department of Geology, University of North Carolina, Chapel Hill, North Carolina 27514 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1978) 89 (3): 460–466. https://doi.org/10.1130/0016-7606(1978)89<460:PAGSOP>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 MailTo Tools Icon Tools Get Permissions Search Site Citation J. ROBERT BUTLER, PAUL D. FULLAGAR; Petrochemical and geochronological studies of plutonic rocks in the southern Appalachians: III. Leucocratic adamellites of the Charlotte belt near Salisbury, North Carolina. GSA Bulletin 1978;; 89 (3): 460–466. doi: https://doi.org/10.1130/0016-7606(1978)89<460:PAGSOP>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 Salisbury, Yadkin, Southmont, Gold Hill, and Kannapolis plutons and related smaller bodies in the Charlotte belt of central North Carolina are leucocratic albite adamellite. The Rb-Sr whole-rock ages for these plutons are 413 to 386 m.y., and the Salisbury-group granites generally have low initial Sr87/Sr86 ratios near 0.703. A mica date of 368 m.y. is an upper bracket for metamorphism. The Gold Hill fault truncates the Gold Hill pluton; major movement probably occurred between about 400 and 368 m.y. ago. Gold mineralization apparently is younger than major deformation. The gold deposits are strongly localized in shear zones, although some gold-bearing veins cut the Gold Hill and Salisbury plutons. Acadian deformation in this part of the southern Appalachians is mainly restricted to shear zones trending about 25° east of north and was accompanied or followed by lower–greenschist-facies metamorphism that overprinted an earlier greenschist- to amphibolite-facies metamorphism. 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.