Supercritical and subcritical turbidity currents and their deposits--A synthesis

Abstract

Research Article| November 01, 2014 Supercritical and subcritical turbidity currents and their deposits—A synthesis George Postma; George Postma 1Faculty of Geosciences, Utrecht University, PO Box 80.021, 3508TA Utrecht, Netherlands Search for other works by this author on: GSW Google Scholar Matthieu J.B. Cartigny Matthieu J.B. Cartigny 2National Oceanography Centre, University of Southampton Waterfront Campus, Southampton SO14 3ZH, UK Search for other works by this author on: GSW Google Scholar Geology (2014) 42 (11): 987–990. https://doi.org/10.1130/G35957.1 Article history received: 04 Jun 2014 rev-recd: 16 Aug 2014 accepted: 18 Aug 2014 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation George Postma, Matthieu J.B. Cartigny; Supercritical and subcritical turbidity currents and their deposits—A synthesis. Geology 2014;; 42 (11): 987–990. doi: https://doi.org/10.1130/G35957.1 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 Common facies models of turbidite deposits are based on idealized sequences of turbidite units, which are assumed to reflect the depositional processes of a decelerating turbidity current. We show how suites of turbidite units, i.e., distinct turbidite facies associations that are easily described from core and outcrop, may characterize the entire range of large-scale dynamics of turbidity currents, enabling estimates of their densimetric Froude number (Fr; subcritical versus supercritical) and suspension fall-out rate (stratified versus nonstratified flows). The linking of facies associations with large-scale flow dynamics resolves process-facies links that were hitherto unresolved by the common turbidite facies models. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.