Characteristics of a sandy depositional lobe on the outer Mississippi fan from SeaMARC IA sidescan sonar images

Research Article| August 01, 1992 Characteristics of a sandy depositional lobe on the outer Mississippi fan from SeaMARC IA sidescan sonar images David C. Twichell; David C. Twichell 1U.S. Geological Survey, Woods Hole, Massachusetts 02543 Search for other works by this author on: GSW Google Scholar William C. Schwab; William C. Schwab 1U.S. Geological Survey, Woods Hole, Massachusetts 02543 Search for other works by this author on: GSW Google Scholar C. Hans Nelson; C. Hans Nelson 1U.S. Geological Survey, Woods Hole, Massachusetts 02543 Search for other works by this author on: GSW Google Scholar Neil H. Kenyon; Neil H. Kenyon 3Institute of Oceanographic Sciences, Wormley, Surrey GU8 5UB, England Search for other works by this author on: GSW Google Scholar Homa J. Lee Homa J. Lee 2U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar Geology (1992) 20 (8): 689–692. https://doi.org/10.1130/0091-7613(1992)020<0689:COASDL>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation David C. Twichell, William C. Schwab, C. Hans Nelson, Neil H. Kenyon, Homa J. Lee; Characteristics of a sandy depositional lobe on the outer Mississippi fan from SeaMARC IA sidescan sonar images. Geology 1992;; 20 (8): 689–692. doi: https://doi.org/10.1130/0091-7613(1992)020<0689:COASDL>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 SeaMARC IA sidescan sonar images of the distal reaches of a depositional lobe on the Mississippi Fan show that channelized rather than unconfined transport was the dominant transport mechanism for coarse-grained sediment during the formation of this part of the deep-sea fan. Overbank sheet flow of sands was not an important process in the transport and deposition of the sandy and silty sediment found on this fan. The dendritic distributary pattern and the high order of splaying of the channels, only one of which appears to have been active at a time, suggest that coarse-grained deposits on this fan are laterally discontinuous. 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.