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Emplacement of the Oman ophiolite: A mechanism related to subduction and collision

1977; Geological Society of America; Volume: 88; Issue: 8 Linguagem: Inglês

10.1130/0016-7606(1977)88 2.0.co;2

1943-2674

Michael Welland, A. H. G. Mitchell,

Geochemistry and Geologic Mapping

Research Article| August 01, 1977 Emplacement of the Oman ophiolite: A mechanism related to subduction and collision MICHAEL J. P. WELLAND; MICHAEL J. P. WELLAND 1Department of Geology, Wayne State University, Detroit, Michigan 48202 Search for other works by this author on: GSW Google Scholar A.H.G. MITCHELL A.H.G. MITCHELL 2Department of Geology and Mineralogy, Parks Road, Oxford, OX1 3 PR, England Search for other works by this author on: GSW Google Scholar Author and Article Information MICHAEL J. P. WELLAND 1Department of Geology, Wayne State University, Detroit, Michigan 48202 A.H.G. MITCHELL 2Department of Geology and Mineralogy, Parks Road, Oxford, OX1 3 PR, England Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1977) 88 (8): 1081–1088. https://doi.org/10.1130/0016-7606(1977)88 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 MICHAEL J. P. WELLAND, A.H.G. MITCHELL; Emplacement of the Oman ophiolite: A mechanism related to subduction and collision. GSA Bulletin 1977;; 88 (8): 1081–1088. doi: https://doi.org/10.1130/0016-7606(1977)88 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 SocietyGSA Bulletin Search Advanced Search Abstract The tectonic succession of the Oman Mountains, including the Semail ophiolite complex, resembles that underlying the Zagros thrust zone of Iran. Palinspastic reconstruction of the Oman sequence indicates a Triassic continental-margin–ocean-basin regime that underwent subduction on its northeastern margin during much of Cretaceous time. The sequence resulted from tectonic incorporation of ocean-basin and margin lithologies into a lower trench slope accretionary prism. Emplacement of large ophiolite (oceanic lithosphere) slices within the accretionary prism may have resulted from attempted subduction of a topographic irregularity such as a recently inactive oceanic rise. Collision, or partial collision, of continental margins resulted in tectonic emplacement of the accretionary prism onto the previously stable platform sequence. This model includes implications concerning the regional tectonic development of the Zagros thrust zone and central Iran and may account for differing characteristics of regions to the northeast and southwest of the Zagros thrust. 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.