Migration direction of sand-wave structures in pyroclastic-surge deposits: Implications for depositional processes

Research Article| November 01, 1991 Migration direction of sand-wave structures in pyroclastic-surge deposits: Implications for depositional processes P. D. Cole P. D. Cole 1School of Geological and Environmental Science, Luton College of Higher Education, Park Square Luton, Bedfordshire LU1 3JU, England Search for other works by this author on: GSW Google Scholar Geology (1991) 19 (11): 1108–1111. https://doi.org/10.1130/0091-7613(1991)019<1108:MDOSWS>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 MailTo Tools Icon Tools Get Permissions Search Site Citation P. D. Cole; Migration direction of sand-wave structures in pyroclastic-surge deposits: Implications for depositional processes. Geology 1991;; 19 (11): 1108–1111. doi: https://doi.org/10.1130/0091-7613(1991)019<1108:MDOSWS>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 Sand-wave structures of both progressive (downstream migrating) and regressive (upstream migrating) types occur within the same pyroclastic-surge deposit at both Roccamonfina volcano (southern Italy) and Sugarloaf Mountain (Arizona, United States). Both "wet" and "dry" surge deposits are described that contain examples of regressive and progressive sandwave structures. At Sugarloaf Mountain progressive and regressive sand waves occur within metres of each other within the same bedset, indicating that penecontemporaneous deposition of the two different sand-wave structures occurred in close proximity. On the basis of this evidence it is suggested that the migration direction of sand waves in these pyroclastic-surge deposits is controlled by the flow regime of the surge cloud rather than the temperature and/or moisture content. 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.