Crustal diapirism in Bransfield Strait, West Antarctica: Evidence for distributed extension in marginal-basin formation

Research Article| July 01, 1994 Crustal diapirism in Bransfield Strait, West Antarctica: Evidence for distributed extension in marginal-basin formation D. H. N. Barker; D. H. N. Barker 1Department of Geological Sciences and Institute for Geophysics, University of Texas, 8701 North MoPac Expressway, Austin, Texas 78759 Search for other works by this author on: GSW Google Scholar J. A. Austin, Jr. J. A. Austin, Jr. 2Institute for Geophysics, University of Texas, 8701 North MoPac Expressway, Austin, Texas 78759 Search for other works by this author on: GSW Google Scholar Author and Article Information D. H. N. Barker 1Department of Geological Sciences and Institute for Geophysics, University of Texas, 8701 North MoPac Expressway, Austin, Texas 78759 J. A. Austin, Jr. 2Institute for Geophysics, University of Texas, 8701 North MoPac Expressway, Austin, Texas 78759 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1994) 22 (7): 657–660. https://doi.org/10.1130/0091-7613(1994)022<0657:CDIBSW>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 D. H. N. Barker, J. A. Austin; Crustal diapirism in Bransfield Strait, West Antarctica: Evidence for distributed extension in marginal-basin formation. Geology 1994;; 22 (7): 657–660. doi: https://doi.org/10.1130/0091-7613(1994)022<0657:CDIBSW>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 New multichannel seismic data from Bransfield Strait, West Antarctica, image complex fan-shaped faulting patterns along the Antarctic Peninsula margin. Although a neovolcanic zone running along the strait's axis has been presumed to be a nascent spreading center and the primary focus for extension, the fan- shaped faulting pattern can be interpreted instead as evidence for intracrustal diapirism, suggesting separate, diffuse zones of extension. Further-more, the diapiric trend ∼5° divergent from that of the neovolcanic zone supports temporal and spatial evolution of stress, perhaps in response to complex plate interactions to the northeast. 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.