Long decollements and mud volcanoes: Evidence from the Barbados Ridge Complex for the role of high pore-fluid pressure in the development of an accretionary complex

Abstract

Research Article| May 01, 1983 Long decollements and mud volcanoes: Evidence from the Barbados Ridge Complex for the role of high pore-fluid pressure in the development of an accretionary complex G. K. Westbrook; G. K. Westbrook 1Department of Geological Sciences, University of Durham, Durham DH1 3LE, England Search for other works by this author on: GSW Google Scholar M. J. Smith M. J. Smith 1Department of Geological Sciences, University of Durham, Durham DH1 3LE, England Search for other works by this author on: GSW Google Scholar Geology (1983) 11 (5): 279–283. https://doi.org/10.1130/0091-7613(1983)11<279:LDAMVE>2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation G. K. Westbrook, M. J. Smith; Long decollements and mud volcanoes: Evidence from the Barbados Ridge Complex for the role of high pore-fluid pressure in the development of an accretionary complex. Geology 1983;; 11 (5): 279–283. doi: https://doi.org/10.1130/0091-7613(1983)11<279:LDAMVE>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 SocietyGeology Search Advanced Search Abstract Mud volcanoes in front of the Barbados Ridge accretionary complex, discovered in multichannel seismic reflection profiles, provide evidence of very high pore-fluid pressures in the sedimentary cover on the oceanic lithosphere that is being subducted beneath the Lesser Antilles island arc. These high pore-fluid pressures can be attributed to the load imposed on the sedimentary cover by the weight of the advancing accretionary wedge. They offer a mechanical explanation for the very wide decollement that separates the Barbados Ridge Complex accretionary wedge from undeformed sediments on the oceanic lithosphere beneath it. Changes in level of this decollement may be induced by local variations in pore-fluid pressure. 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.