Deep-sea erosional unconformity in the southeastern Gulf of Mexico

Abstract

Research Article| April 01, 1983 Deep-sea erosional unconformity in the southeastern Gulf of Mexico D. M. Angstadt; D. M. Angstadt 1University of Texas Institute for Geophysics 4900 North, IH 35, Austin, Texas 78751 Search for other works by this author on: GSW Google Scholar J. A. Austin, Jr.; J. A. Austin, Jr. 1University of Texas Institute for Geophysics 4900 North, IH 35, Austin, Texas 78751 Search for other works by this author on: GSW Google Scholar R. T. Buffler R. T. Buffler 1University of Texas Institute for Geophysics 4900 North, IH 35, Austin, Texas 78751 Search for other works by this author on: GSW Google Scholar Author and Article Information D. M. Angstadt 1University of Texas Institute for Geophysics 4900 North, IH 35, Austin, Texas 78751 J. A. Austin, Jr. 1University of Texas Institute for Geophysics 4900 North, IH 35, Austin, Texas 78751 R. T. Buffler 1University of Texas Institute for Geophysics 4900 North, IH 35, Austin, Texas 78751 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1983) 11 (4): 215–218. https://doi.org/10.1130/0091-7613(1983)11<215:DEUITS>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation D. M. Angstadt, J. A. Austin, R. T. Buffler; Deep-sea erosional unconformity in the southeastern Gulf of Mexico. Geology 1983;; 11 (4): 215–218. doi: https://doi.org/10.1130/0091-7613(1983)11<215:DEUITS>2.0.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 Multichannel seismic data and Deep Sea Drilling Project (DSDP) well information reveal a prominent erosional unconformity in the deep southeastern Gulf of Mexico. Corresponding to a 44 to 38.5 m.y. B.P. hiatus (middle to late Eocene) at DSDP site 540 (Leg 77), the unconformity was apparently produced by the bottom effects of wind-driven surface currents (paleo-Florida Current) and gravitational mass movements capable of scouring the slope. Intensification of these sedimentary processes may have been related to global cooling and a reported drop in sea level in the late Eocene, but it may also have been part of a complex global response to a postulated Paleogene meteorite impact. 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.