Sediment accumulation rates in time and space: Paleogene genetic stratigraphic sequences of the northwestern Gulf of Mexico basin

Research Article| October 01, 1991 Sediment accumulation rates in time and space: Paleogene genetic stratigraphic sequences of the northwestern Gulf of Mexico basin William E. Galloway; William E. Galloway 1Department of Geological Sciences, University of Texas, Austin, Texas 78713-7909 Search for other works by this author on: GSW Google Scholar Thomas A. Williams Thomas A. Williams 1Department of Geological Sciences, University of Texas, Austin, Texas 78713-7909 Search for other works by this author on: GSW Google Scholar Author and Article Information William E. Galloway 1Department of Geological Sciences, University of Texas, Austin, Texas 78713-7909 Thomas A. Williams 1Department of Geological Sciences, University of Texas, Austin, Texas 78713-7909 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1991) 19 (10): 986–989. https://doi.org/10.1130/0091-7613(1991)019<0986:SARITA>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 Email Permissions Search Site Citation William E. Galloway, Thomas A. Williams; Sediment accumulation rates in time and space: Paleogene genetic stratigraphic sequences of the northwestern Gulf of Mexico basin. Geology 1991;; 19 (10): 986–989. doi: https://doi.org/10.1130/0091-7613(1991)019<0986:SARITA>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 The Paleogene fill of the northwestern Gulf of Mexico basin consists of eight genetic stratigraphic, sequences bounded by regional marine flooding surfaces. Calculation of sediment accumulation rates along dip profiles through four subbasins shows that regional changes in accumulation rate—and by inference, rate of sediment supply—of fivefold to tenfold repeatedly occurred over time spans of 1 to 3 m.y. Major sequences record episodes of high supply and accommodation-limited accumulation. Periods of declining and low supply were characterized by short-term over-accommodation and consequent transgressive flooding of the basin margin. Within sequences, depositional rates varied with position relative to the contemporaneous shelf margin, with type of depositional system, and between subbasins. Normal patterns of load-induced basin-margin subsidence and creation of accommodation space were modified by perturbation of the crustal stress regime. 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.