Thick turbidite successions from supply-dominated shelves during sea-level highstand

Abstract

Research Article| August 01, 2006 Thick turbidite successions from supply-dominated shelves during sea-level highstand Cristian R. Carvajal; Cristian R. Carvajal 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA Search for other works by this author on: GSW Google Scholar Ron J. Steel Ron J. Steel 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Cristian R. Carvajal 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA Ron J. Steel 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA Publisher: Geological Society of America Received: 06 Dec 2005 Revision Received: 19 Mar 2006 Accepted: 20 Mar 2006 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2006) 34 (8): 665–668. https://doi.org/10.1130/G22505.1 Article history Received: 06 Dec 2005 Revision Received: 19 Mar 2006 Accepted: 20 Mar 2006 First Online: 09 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 Cristian R. Carvajal, Ron J. Steel; Thick turbidite successions from supply-dominated shelves during sea-level highstand. Geology 2006;; 34 (8): 665–668. doi: https://doi.org/10.1130/G22505.1 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 Emphasis on the association between relative sea-level lowstand and the formation of sandy deep-water fans has tended to downplay the significance of high sediment supply and its potential to create deep-water fans, even during sea-level highstands. The Lance– Fox Hills–Lewis shelf margin in southern Wyoming suggests that high supply was critical in causing the accretion of this moderately wide Maastrichtian shelf margin, at a minimum rate of 47.8 km/m.y., and the generation of large, sand-rich fans during every shoreline regression across the shelf. It is surprising that fans developed from shelf-margin clinoforms that show systematically rising shelf-edge trajectories (proxy for rising relative sea level) as well as from those that show flat trajectories (stable to falling relative sea level). However, the latter, producing more sediment bypass, resulted in bigger and thicker fans, whereas the former produced somewhat smaller and thinner fans. We term the former highstand fans and suggest caution in using the lowstand model for high-supply systems. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.