Evolution of a terminal Neoproterozoic carbonate ramp system (Buah Formation, Sultanate of Oman): Effects of basement paleotopography

Research Article| November 01, 2004 Evolution of a terminal Neoproterozoic carbonate ramp system (Buah Formation, Sultanate of Oman): Effects of basement paleotopography Andrea Cozzi; Andrea Cozzi 1Institute of Geology, Department of Earth Sciences, ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar John P. Grotzinger; John P. Grotzinger 2Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Philip A. Allen Philip A. Allen 3Institute of Geology, Department of Earth Sciences, ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar Author and Article Information Andrea Cozzi 1Institute of Geology, Department of Earth Sciences, ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland John P. Grotzinger 2Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Philip A. Allen 3Institute of Geology, Department of Earth Sciences, ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland Publisher: Geological Society of America Received: 20 Apr 2003 Revision Received: 09 Feb 2004 Accepted: 15 Feb 2004 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (2004) 116 (11-12): 1367–1384. https://doi.org/10.1130/B25387.1 Article history Received: 20 Apr 2003 Revision Received: 09 Feb 2004 Accepted: 15 Feb 2004 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Andrea Cozzi, John P. Grotzinger, Philip A. Allen; Evolution of a terminal Neoproterozoic carbonate ramp system (Buah Formation, Sultanate of Oman): Effects of basement paleotopography. GSA Bulletin 2004;; 116 (11-12): 1367–1384. doi: https://doi.org/10.1130/B25387.1 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 SocietyGSA Bulletin Search Advanced Search Abstract The Buah Formation is a carbonate unit of late Neoproterozoic age, exposed in the Jabal Akhdar of northern Oman and the Huqf region of central Oman. The Buah Formation is interpreted as a distally steepened storm-dominated ramp, containing inner ramp tidally influenced oolitic shoal and back-shoal lagoon facies and storm-dominated mid ramp facies. A slope break separates mid-ramp facies from outer ramp facies characterized by accumulation of redeposited carbonates on gently inclined slopes (1–2 degrees). Combined facies stacking patterns and outcrop correlation via δ13C profiles suggest that Buah carbonates formed as a highstand systems tract characterized by a general upward shallowing of facies and strong lateral progradation. On a regional scale, Buah facies distributions across Oman were controlled by the presence of basement highs defining areas of reduced subsidence, which promoted lateral progradation of the Buah carbonate ramp for tens of kilometers, while the faster-subsiding areas became sites of deep-water deposition. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.