Pliocene-Pleistocene growth of the Rio Ebro margin, northeast Spain: A prograding-slope model

Abstract

Research Article| June 01, 1990 Pliocene-Pleistocene growth of the Rio Ebro margin, northeast Spain: A prograding-slope model MICHAEL E. FIELD; MICHAEL E. FIELD 1U.S. Geological Survey, 345 Middlefield Road, M.S. 999, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar JAMES V. GARDNER JAMES V. GARDNER 1U.S. Geological Survey, 345 Middlefield Road, M.S. 999, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar Author and Article Information MICHAEL E. FIELD 1U.S. Geological Survey, 345 Middlefield Road, M.S. 999, Menlo Park, California 94025 JAMES V. GARDNER 1U.S. Geological Survey, 345 Middlefield Road, M.S. 999, Menlo Park, California 94025 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1990) 102 (6): 721–733. https://doi.org/10.1130/0016-7606(1990)102<0721:PPGOTR>2.3.CO;2 Article history First Online: 01 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 MICHAEL E. FIELD, JAMES V. GARDNER; Pliocene-Pleistocene growth of the Rio Ebro margin, northeast Spain: A prograding-slope model. GSA Bulletin 1990;; 102 (6): 721–733. doi: https://doi.org/10.1130/0016-7606(1990)102<0721:PPGOTR>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 SocietyGSA Bulletin Search Advanced Search Abstract Pliocene-Pleistocene marine deposits overlying Messinian evaporites off northeast Spain are composed of five distinct seismic facies. These facies are interpreted to represent deposition in five adjacent settings: distal (isolated) basin, basin plain, base of slope,slope, and shelf. Contrary to previous studies, a submarine-fan style of deposition is not evident. Distal-basin deposits are characterized by thin, wavy, parallel beds draping the sea floor. Basin-plain deposits are similar but also have flat-lying beds and some low-relief channels. Base-of-slope deposits are dominated by stacked, overlapping, elongate channel/levee deposits that have concave-upward bases and convex-upward tops. Slope sequences are thick accumulations of overbank deposits laterally interrupted by large upward-climbing canyon fill. The shelf component is composed of overlapping and stacked delta lobes.The composite sediment body is a prograded, upward-shallowing, offlap sequence initiated and controlled by the influx of terrigenous sediment from the Rio Ebro during the Pleistocene. This style of deposition is common in the rock record, and our model may be more appropriate as a modern analogue for some rocks than are conventional shelf-canyon-fan models of margin sedimentation. 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.