Bedload transport of mud by floccule ripples—Direct observation of ripple migration processes and their implications

Abstract

Research Article| June 01, 2009 Bedload transport of mud by floccule ripples—Direct observation of ripple migration processes and their implications Juergen Schieber; Juergen Schieber 1Department of Geological Sciences, Indiana University, Bloomington, Indiana 47405, USA Search for other works by this author on: GSW Google Scholar John B. Southard John B. Southard 2Department of Earth and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Geology (2009) 37 (6): 483–486. https://doi.org/10.1130/G25319A.1 Article history received: 08 Jul 2008 rev-recd: 03 Jan 2009 accepted: 15 Jan 2009 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Juergen Schieber, John B. Southard; Bedload transport of mud by floccule ripples—Direct observation of ripple migration processes and their implications. Geology 2009;; 37 (6): 483–486. doi: https://doi.org/10.1130/G25319A.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 Flume experiments have shown that muds can be transported in bedload as floccule ripples and deposited at current velocities that would suffice to transport and deposit sand. A new set of experiments provides firsthand observations of the processes that shape and propagate mud ripples. Sediment is transported over the stoss side in the form of diverging boundary-layer streaks, the carriers of the bulk of the bedload floccule freight. At the brinkline these streaks become point sources of sediment that feeds avalanches of floccule-rich sediment lobes. These propagate down the slip face like classic mudflows on a hillside. Geometries of ripples are very similar to those produced in sandy sediments, even though the floccule ripples contain as much as 90 vol% water. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.