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Semail Nappe

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Journal Article
Published: 01 August 1980
Journal of the Geological Society (1980) 137 (4): 403–422.
...A. J. Fleet; A. H. F. Robertson Abstract The lavas of the Semail ophiolitic nappe of Oman, which formed at and very near a late Cretaceous oceanic spreading axis, are intercalated with, and overlain by a range of metalliferous sediments including cupriferous sulphides, ferruginous ochres and ferro...
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1973
AAPG Bulletin (1973) 57 (1): 5–27.
.... In the northern mountains the Hawasina tectonically overlies Permian to Cenomanian sequences of reefal limestones, slump conglomerates, turbidites, and calcareous mudstone of the Sumeini Group. The Hawasina is overlain by the Semail nappe, an enormous mass of ophiolites. Minor amounts of pelagic sediment dated...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1973
AAPG Bulletin (1973) 57 (1): 5–27.
.... In the northern mountains the Hawasina tectonically overlies Permian to Cenomanian sequences of reefal limestones, slump conglomerates, turbidites, and calcareous mudstone of the Sumeini Group. The Hawasina is overlain by the Semail nappe, an enormous mass of ophiolites. Minor amounts of pelagic sediment dated...
FIGURES | View All (9)
Journal Article
Published: 01 August 1982
Canadian Journal of Earth Sciences (1982) 19 (8): 1635–1656.
... of these upper Batinah Complex sequences were emplaced onto the upper surface of the Semail ophiolite in Late Cretaceous time, during or soon after the advance of the Semail Nappe onto the Arabian margin. Emplacement was along subhorizontal fault zones, with sheets of distal facies followed by successively more...
Journal Article
Journal: GSA Bulletin
Published: 01 November 1987
GSA Bulletin (1987) 99 (5): 633–653.
... shed from submarine fault scarps. Successive foreland basins were overridden by the advancing nappes. During the later stages of thrusting onto the continent, Mesozoic sediment décollement nappes were bulldozed ahead of the Semail nappe, ploughing into the existing foreland basin. In conjunction...
Journal Article
Published: 01 March 1989
Bulletin de la Société Géologique de France (1989) V (2): 189–204.
... rocks magmatism Oman ophiolite plutonic rocks segmentation Semail Ophiolite Tethys ultramafics Wadi Haymiliyah wehrlite ...
Journal Article
Published: 01 March 1989
Bulletin de la Société Géologique de France (1989) V (2): 205–219.
... basins chemical composition Cretaceous decoupling diabase dikes fore-arc basins geochemistry igneous rocks intrusions lithogeochemistry Mesozoic nappes Oman ophiolite plutonic rocks Semail Ophiolite subduction zones ultramafics Upper Cretaceous volcanic rocks ...
Journal Article
Published: 01 September 1980
Journal of the Geological Society (1980) 137 (5): 589–604.
...M. P. Searle; S. J. Lippard; J. D. Smewing; D. C. Rex Abstract Volcanic rocks, locally up to 700 m thick, occur within a complex imbricate zone beneath the Upper Cretaceous Semail Ophiolite nappe in the northern Oman mountains. Although the rocks were considerably disrupted during late Cretaceous...
Journal Article
Published: 01 July 2008
Bulletin de la Société Géologique de France (2008) 179 (4): 411–425.
... the central (Dinarides, Hellenides) and eastern Mediterranean (Antalya, Troodos, Baër Bassit) to the Semail nappes (Oman), they occur either associated to the tectonic sole of the ophiolitic nappes or as a distinct tectonic pile intercalated between the ophiolites and other underthrust units. In the Dinaro...
FIGURES | View All (9)
Series: SEPM Special Publication, SEPM Special Publication
Published: 01 January 2000
DOI: 10.2110/pec.00.69.0009
EISBN: 9781565761919
... its sense of motion. The ensuing buildup of horizontal compressional stresses led to an eastward-dipping subduction zone within the Oman sector of Neo-Tethys 2, leading to obduction of the Late Permian to mid-Cretaceous Hawasina Series (deposited in Neo-Tethys 1) and the Semail Nappe, which...
Journal Article
Published: 01 August 1981
Canadian Journal of Earth Sciences (1981) 18 (8): 1290–1302.
... of ocean-floor geothermal systems that contained convectively circulating sea water.Lead isotope ratios of 18 samples associated with Upper Cretaceous ophiolitic rocks of the Troodos massif, Cyprus (6 samples), the Baër-Bassit area, Syria (6), and the Semail nappe in the Sultanate of Oman (6), indicate...
Journal Article
Journal: Economic Geology
Published: 01 September 2014
Economic Geology (2014) 109 (6): 1585–1610.
...Samuel A. Gilgen; Larryn W. Diamond; Ivan Mercolli; Khalid Al-Tobi; David W. Maidment; Robert Close; Ahmed Al-Towaya Abstract The Semail ophiolite in Oman is capped by up to 2 km of basaltic-andesitic lavas that host copper-dominant, Cyprus-type, volcanogenic massive sulfide (VMS) deposits...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP392.7
EISBN: 9781862396685
... following emplacement of the Hawasina nappes and the Semail Ophiolite then controlled broad-scale down-to-the-north fracturing of the ophiolite and the exposure of higher stratigraphical levels of the ophiolite to the north of the Hatta Zone. The Suneinah (Aruma) foreland basin is mostly concealed...
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Journal Article
Journal: Geology
Published: 09 December 2019
Geology (2020) 48 (3): 258–262.
...Alvar Braathen; Per Terje Osmundsen Abstract Significant post-orogenic extension of the renowned Semail Ophiolite and substrata in Oman resulted in the formation of metamorphic core complexes juxtaposed with an array of Maastrichtian-Paleogene extensional basins. During this evolution, basins...
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Journal Article
Journal: Geology
Published: 01 October 2003
Geology (2003) 31 (10): 889–892.
...Clare J. Warren; Randall R. Parrish; Michael P. Searle; David J. Waters Abstract The presence of high-pressure ( P ) eclogites along the northeast margin of the Arabian continental plate beneath the Semail ophiolite demonstrates that subduction of thinned continental crust to pressures of 20 kbar...
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Journal Article
Published: 01 May 2002
Geological Magazine (2002) 139 (3): 241–255.
...MICHAEL P. SEARLE; JON COX Abstract The metamorphic sole along the base of the Semail ophiolite in Oman records the earliest thrust slice subducted and accreted to the base of the ophiolite mantle sequence. In the Bani Hamid area (United Arab Emirates) a c. 870 m thick thrust slice of granulite...
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Journal Article
Published: 01 November 2014
Mineralogical Magazine (2014) 78 (6): 1479–1490.
...J. Olsson; S. L. S. Stipp; S. R. Gislason Abstract Ultramafic rocks, such as the Semail Ophiolite in the Sultanate of Oman, are considered to be a potential storage site for CO 2 . This type of rock is rich in divalent cations that can react with dissolved CO 2 and form carbonate minerals, which...
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Journal Article
Published: 01 February 1983
Journal of the Geological Society (1983) 140 (1): 97–104.
...Stephen J. Lippard Abstract An occurrence of glaucophane-bearing schists is reported from near Muscat in NE Oman in rocks which underlie the Upper Cretaceous Semail ophiolite nappe. These blueschists formed by the metamorphism of quartz sandstones, shales and basic igneous rocks belong to a pre...
Journal Article
Journal: GeoArabia
Publisher: Gulf Petrolink
Published: 01 July 2010
GeoArabia (2010) 15 (3): 85–124.
.... (1) Late Cretaceous original (Hamrat Duru; Haybi) nappes that formed during intra-oceanic obduction underwent out-of-sequence thrusting beneath the Semail thrust. The repetitions of the nappe complexes are out-of-sequence because: (a) repetition of original nappe packages; (b) the presence of Haybi...
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Series: Geological Society, London, Memoirs
Published: 01 March 2021
DOI: 10.1144/M54.5
EISBN: 9781786205254
... during the early Jurassic by uplift and tilting of the Arabian Platform. The platform collapsed during the late Cretaceous, related to the arrival of the obducted allochthonous nappes including the Semail Ophiolite, transforming the passive margin to an active margin. The Semail Ophiolite formed most...
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