 | | Journal (article/letter/editorial) | | the origin of Late Triassic melange units in the Oman Mountains as a small ocean basin formed by continental...trench-margin collision the Semail ophiolite split into blocks allowing sub-ophiolite melange rocks to be expelled...upwards through corridors, creating the Batinah Melange. As the ophiolite nappe ploughed inboard over already...overturned and then slid backwards onto the ophiolite to form the Batinah Sheets. 1. Introduction Studies of...particular significance. For example, recent work on the Oman Mountains has advanced understanding of both oceanic |  | | Report (chapter) | | Colorado Boulder on April 12, 2017 Chapter 4 Ophiolite Detachment, Emplacement and Subsequent Deformation...I n t r o d u c t i o n In Chapter 3, the Semail ophiolite is described and the conclusion reached that...Arabian (Oman) continental margin. Here, we are concerned with (i) the detachment of the ophiolite from its...for the supra-subduction site and origin of the ophiolite, data relative to detachment processes are presented...on plagiogranites (Tilton et al. 1981) indicate that the Semail ophiolite was formed about 95 Ma ago. |  | Belgrano, Thomas M., Diamond, Larryn W., Vogt, Yves, Biedermann, Andrea R., Gilgen, Samuel A., Al-Tobi, Khalid (2019) A revised map of volcanic units in the Oman ophiolite: insights into the architecture of an oceanic proto-arc volcanic sequence. Solid Earth, 10 (4). 1181-1217 doi:10.5194/se-10-1181-2019 | Journal (article/letter/editorial) | | License. A revised map of volcanic units in the Oman ophiolite: insights into the architecture of an oceanic...R. Biedermann1,2 , Samuel A. Gilgen1 , and Khalid Al-Tobi3 1 Institute of Geological Sciences, University...Box 1242, PC 130 Athaibah, Muscat, Sultanate of Oman 2 Institute Correspondence: Thomas M. Belgrano...formed above nascent subduction zones. The Semail ophiolite (Oman–U.A.E.) in particular can be viewed as...3–5 km thick upper-crustal succession of the Semail ophiolite, which is exposed in an oblique cross section |  | | Report (chapter) | | and palaeogeography of the Central and Northern Oman Mountains S. C. N O L A N 1, P. W . S K E L T O...outcrop extensively around the periphery of the Oman Mountains. They form part of a geologically distinct...of strata deposited after obduction of the Semail ophiolite and thrusting of the Hawasina and Sumeini...northern Oman Mountains is revised and a number of new formations are erected. The proto-Oman Mountains...(Muthaymimah Formation) and NNE (Ruwaydah Formation) of the Oman Mountains. Elsewhere, shallow carbonate shelf facies |  | Gilgen, S. A., Diamond, L. W., Mercolli, I., Al-Tobi, K., Maidment, D. W., Close, R., Al-Towaya, A. (2014) Volcanostratigraphic Controls on the Occurrence of Massive Sulfide Deposits in the Semail Ophiolite, Oman. Economic Geology, 109 (6) 1585-1610 doi:10.2113/econgeo.109.6.1585 | Journal (article/letter/editorial) | | in the Semail Ophiolite, Oman Samuel A. Gilgen,1,† Larryn W. Diamond,1 Ivan Mercolli,1 Khalid Al-Tobi,2...2 David W. Maidment,3,* Robert Close,4 and Ahmed Al-Towaya5 1 Institute 2 Earth of Geological Sciences...Sultanate of Oman 3 Mawarid 4 Gentor Mining, P.O. Box 476, PC 321 Sohar, Sultanate of Oman Resources...Athaibah, Sultanate of Oman 5 Directorate General of Minerals, Muscat, Sultanate of Oman Abstract The Semail...Semail ophiolite in Oman is capped by up to 2 km of basaltic-andesitic lavas that host copper-dominant |  | | Book | | GeoGuide Mike Searle Geology of the Oman Mountains, Eastern Arabia GeoGuide Series Editors Wolfgang...springer.com/series/11638 Mike Searle Geology of the Oman Mountains, Eastern Arabia 123 Mike Searle Department...grateful thanks for the wonderful life we had in Oman in the early days. It is also dedicated to all those...this amazing and wonderful country. Foreword Oman and the UAE possess several geological wonders that...processes. Between the Oman Mountains in the north and the Dhofar Mountains in the south, many geological windows |  | | Report (chapter) | | margin transform lineament: the Hatta Zone, Northern Oman Mountains A . H . F. R O B E R T S O N 1, A . E...Northern Oman Mountains, is interpreted as a c. 50 km long left-lateral offset of the North Oman passive...+ 4, to 93 Ma • 4. During the Late Cretaceous ophiolite emplacement, abyssal plain and base of slope units...occured above an inferred footwall ramp. As the Semail ophiolite overrode a northfacing transform escarpment...the Semail ophiolite (Figs 1 & 2). Other windows, or corridors through the ophiolite further south (e |  | Grobe, Arne, von Hagke, Christoph, Littke, Ralf, Dunkl, István, Wübbeler, Franziska, Muchez, Philippe, Urai, Janos L. (2019) Tectono-thermal evolution of Oman's Mesozoic passive continental margin under the obducting Semail Ophiolite: a case study of Jebel Akhdar, Oman. Solid Earth, 10 (1). 149-175 doi:10.5194/se-10-149-2019 | Journal (article/letter/editorial) | | margin under the obducting Semail Ophiolite: a case study of Jebel Akhdar, Oman Arne Grobe1,2 , Christoph...Geoscience, German University of Technology in Oman GUtech, Muscat, Oman 6 Institute of Geology & Palaeontology...in the passive continental margin under the Oman Ophiolite using numerical basin models calibrated with...recent work on the tectonic evolution. Because the Oman mountains experienced only weak post-obduction overprint...evolution in the carbonate platform under the ophiolite depends on the burial depth and only weakly on |  | | Report (issue) | | DENVER MINERAL DEPOSITS AND GEOLOGY OF NORTHERN OMAN AS OF 1974 By R. G. Coleman and E. H. Bailey U....Minerals, Ministry of Development, Sultanate of Oman 1981 l...Minerals, Ministry of Development, Muscat, Sultanate of Oman. CONTENTS Page Summary •..•... Introduction. Staff...Arabian Shelf Carbonates. Ophiolite and related rocks (Allochthon) Semail ophiolite •...... Hawasina unit...metamorphics .. Sedimentary rocks lying on Semail ophiolite. Shallow-water marine limestone. Pliocene-Holocene |  | | Report (chapter) | | UK (e-mail: mikes@earth.ox.ac.uk) Abstract: The Oman Mountains contain a number of unique and very special...Heritage importance. Large-scale developments in Oman and UAE have already affected some of these sites...Scientific Interest (SSSI). Three geological sites in Oman are so unique and so special that they warrant World...status: the Semail Ophiolite, the world’s largest, best exposed and most complete ophiolite; Jebel al-Akhdar;...sites include the Sifah eclogites, the Oman Exotics, Majlis al-Jinn, sites of ‘Snowball Earth’ significance |  | | Report (chapter) | | on December 3, 2016 Chapter 2 Evolution of the Oman Tethys 2.1 Introduction Gondwanaland supercontinent...passivetype continental margin. The history of the Oman margin, as recorded by the sediments that overlie...the end of the Triassic in the present area of the Oman Mountains there was a broad continental shelf bordered...shallow-water limestones (now represented by the "Oman Exotics") which formed as carbonate platforms developed...nappes (Hawasina Assemblage and Haybi complex). The Semail Nappe represents a slice of oceanic lithosphere |  | | Report (chapter) | | on April 12, 2017 Chapter 3 T h e S e m a i l Ophiolite 3.1 I n t r o d u c t i o n southeast (Fig....and that the nappe extends beneath most of the Batinah coastal plain probably with its tapering trailing...present Gulf of Oman coastline. Marked structural thinning and imbrication of the ophiolite along the western...western or southern edges of The Semail Ophiolite, also referred to in the literature as the O m a n or...r t h e r n O m a n Ophiolite, forms a huge thrust sheet or n a p p e , the Semail Nappe, that is over |  | Nasir, Sobhi, Al Sayigh, Abdul Razak, Al Harthy, Abdulrahman, Al-Khirbash, Salah, Al-Jaaidi, Omar, Musllam, Abdullah, Al-Mishwat, Ali, Al-Bu'saidi, Salim (2007) Mineralogical and geochemical characterization of listwaenite from the Semail Ophiolite, Oman. Geochemistry, 67 (3) 213-228 doi:10.1016/j.chemer.2005.01.003 | Journal (article/letter/editorial) | | listwaenite from the Semail Ophiolite, Oman Sobhi Nasira,, Abdul Razak Al Sayigha, Abdulrahman Al Harthya, Salah...Salah Al-Khirbasha, Omar Al-Jaaidia, Abdullah Musllamb, Ali Al-Mishwatc, Salim Al-Bu’saidid a Department...Qaboos University, Al-Khod, Oman Department of Geology, United Arab Emirates University, Al-Ain, UAE c Department...General of Mineral, Ministry of Commerce and Industry, Oman b Received 12 March 2004; accepted 5 January 2005...alteration of serpentinized peridotite in the Semail ophiolite has formed two distinct types of listwaenite |  | | Journal (article/letter/editorial) | | Late Cretaceous Qahlah Formation in the western Oman Mountains, United Arab Emirates A.S. Alsharhan ...17777, Al Ain, United Arab Emirates b Department of Geology, U.A.E. University, P.O. Box 17551, Al Ain...related to the geotectonic evolution of the western Oman Mountains during the Late Cretaceous. Qahlah Formation...sedimentary deposit to onlap the abducted Semail ophiolite, which was subjected to extensive weathering...setting adjacent to a retreating cliff line of the ophiolite. A comparative analysis of the principal chemical |  | | Report (chapter) | | 2015 Metamorphism in the Oman Mountains in relation to the Semail ophiolite emplacement A . K. E L -...metamorphic rocks associated with the Semail ophiolite in the Oman Mountains represent two different facies...Amphibolites and greenshists at the base of the Semail ophiolite constitute a metamorphic sole formed in a...thickening) of the basement and shelf units of the Oman continental margin in response to a change in plate...Cretaceous emplacement of the ophiolite onto the continental margin of Oman resulted in the imbrication |  | | Journal (article/letter/editorial) | | during formation and emplacement of the Semail ophiolite in the Oman Mountains MICHAEL P. SEARLE* & JON COX...metamorphic sole along the base of the Semail ophiolite in Oman records the earliest thrust slice subducted...subducted and accreted to the base of the ophiolite mantle sequence. In the Bani Hamid area (United Arab...can be accounted for by the thickness of the ophiolite. 40 Ar/39Ar hornblende ages from the amphibolites...synchronous with formation of the plagiogranites in the ophiolite crustal sequence (95 Ma), eruption of the Lasail |  | | Journal (article/letter/editorial) | | constraints from the Masfut-Rawda Ridge, Northern Oman Mountains S. Nasir1, S. Hanna2 , and S. Hajari1...of Earth Sciences, Sultan Qaboos University, Al-Khod, Oman Received April 19, 2001; revised version accepted...underlying the Semail Ophiolite Complex at the southern part of the Rawda-Masfut ridge, Northern Oman Mountains...extension that preceded the genesis of the Semail Ophiolite. Introduction The association of carbonatite...carbonatite occurrences related 236 S. Nasir et al.: The petrogenetic association of carbonatite and |  | Mattern, Frank, Scharf, Andreas, Wang, Pu-Jun, Callegari, Ivan, Abbasi, Iftikhar, Al-Wahaibi, Saja, Pracejus, Bernhard, Scharf, Katharina (2020) Deformation of the Cambro-Ordovician Amdeh Formation (Members 1 and 2): Characteristics, Origins, and Stratigraphic Significance (Wadi Amdeh, Saih Hatat Dome, Oman Mountains) Geosciences, 10 (2) 48 doi:10.3390/geosciences10020048 | Journal (article/letter/editorial) | | Stratigraphic Significance (Wadi Amdeh, Saih Hatat Dome, Oman Mountains) Frank Mattern 1, *, Andreas Scharf 1...Wang 2 , Ivan Callegari 3 , Iftikhar Abbasi 1 , Saja Al-Wahaibi 1 , Bernhard Pracejus 1 and Katharina Scharf...Sciences, Sultan Qaboos University, Muscat 123, Oman; scharfa@squ.edu.om (A.S.); Iftikhar@squ.edu.om...German University of Technology in Oman, Halban PO Box 1816, Oman; ivan.callegari@gutech.edu.om (I.C...rock formations of the Jabal Akhdar Dome of the Oman Mountains. These rocks were folded and cleaved at |  | | Report (chapter) | | emplacement and culmination collapse in the Central Oman Mountains D. Q. C O F F I E L D A R C O International...USA Abstract: The Fanjah Saddle, in the Central Oman Mountains, forms a structural and topographic depression...post-middle Eocene Zagros orogeny. The bulk of the Oman Mountains consist of a nappe pile emplaced southwestward...platform margin during the late Cretaceous (Glennie et al. 1973, 1974; Gealey 1977) (Fig. 1). The allochthonous...facies rocks of the Hawasina complex (Glennie et al. 1973, 1974; Cooper 1987) and Sumeini Group (Watts |  | | Journal (article/letter/editorial) | | carbonate platform-foreland basin transition in the Oman Mountains A.H.F. R O B E R T S O N Department of...basin transition in the Oman Mountains. Sediment. Geol., 57: 1-15. In the Oman Mountains, ferruginous...carbonate platform successions in the Oman Mountains. In the Oman region the Arabian continent was rifted...continental margin bordering the Tethys ocean (Glennie et al., 1973, 1974). During the Late Cretaceous the margin...and continental margin units and a huge ophiolite, the Semail nappe, were emplaced onto the Arabian continental |  | | Journal (article/letter/editorial) | | deposits in the alkaline springs from the Oman Semail Ophiolite J. OLSSON1,2,*, S. L. S. STIPP1 1 2 AND...Ultramafic rocks, such as the Semail Ophiolite in the Sultanate of Oman, are considered to be a potential...geological periods of time. Dissolution of the ophiolite mobilizes heavy metals, which can threaten the...surfaces. Hyperalkaline spring waters issuing from the Semail Ophiolites can have pH as high as 12. This water...travertine samples from two alkaline springs of the Semail Ophiolite. Twenty seven elements were detected in the |  | | Journal (article/letter/editorial) | | the metamorphic sole of the Semail Ophiolite: implications for ophiolite cooling history Edwin Gnos and...rocks squeezed into the mantle sequence of the Semail Ophiolite. The hornblende ages of 99 + 0.5 and 102 •...high-grade rocks and into the base of the overlying ophiolite. Radiometric ages of hornblendes (92.3+_0.5 and...cooled below 500 ~ C later than the base of the ophiolite sequence. Metamorphism of the sole rocks occurred...contemporaneous with the main magmatism in the Semail Ophiolite. One of the dated muscovites yields an age |  | | Journal (article/letter/editorial) | | geochemistry of low grade Ni-lateritic soil (Oman Mountains, Oman) Salah A. Al-Khirbash Dept. of Earth Sciences,...Sultan Qaboos University, P.O. Box 36, Al-Khod 123, Muscat, Oman a r t i c l e i n f o Article history:...August 2016 Keywords: Nickel laterite Oman Mountains Ophiolite Weathering Soil a b s t r a c t The laterite...oceanic crust and upper mantle sequence (the Semail ophiolite) onto the East Arabian margin during the late...formed as a result of prolonged weathering of the ophiolite assemblage under tropical to subtropical conditions |  | Zihlmann, Barbara, Müller, Samuel, Coggon, Rosalind M., Koepke, Jürgen, Garbe-Schönberg, Dieter, Teagle, Damon A.H. (2018) Hydrothermal fault zones in the lower oceanic crust: An example from Wadi Gideah, Samail ophiolite, Oman. Lithos, 323. 103-124 doi:10.1016/j.lithos.2018.09.008 | Journal (article/letter/editorial) | | crust: An example from Wadi Gideah, Samail ophiolite, Oman Barbara Zihlmann, Samuel Müller, Rosalind...crust: An example from Wadi Gideah, Samail ophiolite, Oman. Lithos (2018), doi:10.1016/j.lithos.2018.09...crust: An example from Wadi Gideah, Samail ophiolite, Oman 1) 2) 1) 3) 2) Barbara Zihlmann , Samuel...crust, Samail ophiolite Oman. Mass balance calculations show significant losses of Si, Ca, Al, Rb, Sr and...significantly to the global hydrothermal budget of Si, Ti, Al, Fe, AC Mn, Mg, Ca, H2O, Cu, Zn, Sr and Cs. Key |  | | Journal (article/letter/editorial) | | OPHIOLITES AND THE GEOLOGICAL STRUCTURE OF EASTERN OMAN a b N. A. Bogdanov , N. L. Dobretsov & A. L. Knipper...OPHIOLITES AND THE GEOLOGICAL STRUCTURE OF EASTERN OMAN, International Geology Review, 33:9, 858-878, DOI:... OPHIOLITES AND THE GEOLOGICAL STRUCTURE OF EASTERN OMAN N. A. Bogdanov, N. L. Dobretsov, and A. L. Knipper..."Ofiolity i geologicheskoye stroyeniye Vostochnogo Oman," Izvestiya AN SSSR, Seriya geologicheskaya, 1991...Although the recent literature on the ophiolite section of Oman is vast*, this paper fills a need in offering |
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