Arc rifting of the Carolina terrane in northwestern South Carolina

Abstract

Research Article| March 01, 1991 Arc rifting of the Carolina terrane in northwestern South Carolina Allen J. Dennis; Allen J. Dennis 1Department of Physical Sciences, University of South Carolina, Aiken, South Carolina 29801 Search for other works by this author on: GSW Google Scholar John W. Shervais John W. Shervais 2Department of Geological Sciences, University of South Carolina, Columbia, South Carolina 29208 Search for other works by this author on: GSW Google Scholar Author and Article Information Allen J. Dennis 1Department of Physical Sciences, University of South Carolina, Aiken, South Carolina 29801 John W. Shervais 2Department of Geological Sciences, University of South Carolina, Columbia, South Carolina 29208 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1991) 19 (3): 226–229. https://doi.org/10.1130/0091-7613(1991)019<0226:AROTCT>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Allen J. Dennis, John W. Shervais; Arc rifting of the Carolina terrane in northwestern South Carolina. Geology 1991;; 19 (3): 226–229. doi: https://doi.org/10.1130/0091-7613(1991)019<0226:AROTCT>2.3.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 SocietyGeology Search Advanced Search Abstract Recent mapping and whole-rock geochemistry studies demonstrate that mafic metavolcanic rocks found along the boundary between the exotic Carolina terrane and the Inner Piedmont formed in a subduction-related volcanic are and do not represent the Iapetan suture. Mafic metavolcanic rocks are spatially and genetically related to zoned mafic-ultramafic intrusive complexes. These rocks are similar to those found in other ancient and modern volcanic island arcs where ankaramites and picrites are well known, and they are locally associated with zoned complexes, e.g., Sierra Foothills-Klamath Mountains of the western U.S. Cordillera. We propose that prior to accretion to Laurentia in the early to middle Paleozoic, the Carolina arc terrane underwent an episode of intea-arc rifting which allowed primitive arc magmas to ascend and erupt without significant crystal fractionation or lithospheric assimilation. This interpretation may help resolve some stratigraphie problems in the eastern part of the Carolina terrane (Carolina slate belt). 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.