 | | Report (article/chapter) | | from the
Semail peridotite, Oman
R. T.
Gregory
SUMMARY: Field mapping in the Semail ophiolite complex...complex, southeastern Oman Mountains reveals
a thick oceanic crustal section (on average >6 km thick) underlain...harzburgite-dunite zone overlain by a foliated harzburgite containing
concordant layers of dunite (cm-m scale)...are crosscut by discordant dunite bodies (cm-km scale) and by dykes of
dunite, websterite, olivine clinopyroxenite...products between ascending melts and host peridotite.
Dunite is the only volumetrically significant discordant |  | | Report (article/chapter) | | (Cyprus) and Semail Nappe (N
Oman) ophiolites
I. G. Gass
SUMMARY:The Troodos and Semail Nappe ophiolites...the Troodos massif, Cyprus,
and the Semail Nappe of northern Oman, both
of which were formed in Neotethys...Although there is no exposed base to the
Troodos ophiolite (Wilson 1959) and the massif
has been rotated...1963; Makris et
al. 1983) indicates that the ophiolite rests at a
depth of between 12 and 20 km on attenuated...the Troodos
ophiolite was thrust onto a continental margin
in a similar manner to the Semail Nappe. The |  | | Report (article/chapter) | | ridges - evidence from mantle fabric studies
of ophiolite complexes
I. D. B A R T H O L O M E W
O r y x...oceanic upper
mantle sections exposed within 3 ophiolite complexes have shown that in all of the ophiolites...studies have been conducted in
many well-preserved ophiolite sequences from
around the world (Antalya, Turkey...Prinzhoffer et
al. 1980; Cassard et al. 1981; Semail, Sultanate
of Oman - Boudier & Coleman 1981; Bartholomew...the ophiolites studied
by the author (Semail, Sultanate of Oman;
Troodos, Cyprus; and Unst, Shetland) |  | | 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 |  | | 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 |  | Goodenough, K. M., Thomas, R. J., Styles, M. T., Schofield, D. I., MacLeod, C. J. (2014) Records of Ocean Growth and Destruction in the Oman-UAE Ophiolite. Elements, 10 (2) 109-114 doi:10.2113/gselements.10.2.109 | Journal (article/letter/editorial) | | Records of Ocean Growth
and Destruction
in the Oman–UAE Ophiolite
Kathryn M. Goodenough1, Robert J. Thomas2...UAE ophiolite
(width of view
~50 cm)
DOI: 10.2113/gselements.10.2.109
T
he Oman–UAE ophiolite is the...mid-ocean ridge
and as a typical suprasubduction zone ophiolite. A resolution to this conundrum comes from the...most voluminous in the northern blocks
of the ophiolite. The first phase was formed at an oceanic spreading...formed above a subduction zone.
KEYWORDS : Oman–UAE ophiolite, suprasubduction zone, Moho Transition Zone |  | Cocomazzi, , Grieco, , Tartarotti, , Bussolesi, , Zaccarini, , Crispini, , Science Team, (2020) The Formation of Dunite Channels within Harzburgite in the Wadi Tayin Massif, Oman Ophiolite: Insights from Compositional Variability of Cr-Spinel and Olivine in Holes BA1B and BA3A, Oman Drilling Project. Minerals, 10 (2) 167 doi:10.3390/min10020167 | Journal (article/letter/editorial) | | Formation of Dunite Channels within
Harzburgite in the Wadi Tayin Massif, Oman
Ophiolite: Insights from...of
Cr-Spinel and Olivine in Holes BA1B and BA3A,
Oman Drilling Project
Giuseppe Cocomazzi 1 , Giovanni...1 ,
Federica Zaccarini 2 , Laura Crispini 3 and Oman Drilling Project Science Team †
1
2
3
*
†
Department...giovanni.grieco@unimi.it; Tel.: +39-02-5031-5629
Oman Drilling Project Science Team: https://www.omandrilling...into the Wadi Tayin Massif, southern ophiolite complex
of Oman, a fragment of the Tethyan oceanic lithosphere |  | | Report (article/chapter) | | of the mantle sequences observed
within many ophiolite complexes; in particular, those where a harzburgite...segregations are invariably contained within a
dunite envelope and show a wide variety of ore textures...from the spreading axis, the obduction of the ophiolite or postobduction regional deformation events....from chromite segregations within an individual
ophiolite can be related to the position of the segregation...peridotites, for the larger part,
evolved into ophiolite complexes. Not surprisingly, the ideas on the |  | | Report (article/chapter) | | template for
ophiolites in Albania, Cyprus, and Oman
YILDIRIM
DILEK 1 & MARTIN
F. J. F L O W E R
2...at Chicago,
Chicago, IL 60607, USA
Abstract: Ophiolite assemblages record structural, magmatic, and metamorphic...orogenic belts by continental plate collisions. Ophiolite genetic
models appealing to 'oceanic' or 'suprasubduction'...passive margins. In contrast, the proposal that ophiolite genesis is
exclusive to intra-oceanic forearc...retreating forearc. As a model for NeoTethyan ophiolite genesis, this is predicated on the notion that |  | Robinson, Paul T., Trumbull, Robert B., Schmitt, Axel, Yang, Jing-Sui, Li, Jian-Wei, Zhou, Mei-Fu, Erzinger, Jörg, Dare, Sarah, Xiong, Fahui (2015) The origin and significance of crustal minerals in ophiolitic chromitites and peridotites. Gondwana Research, 27 (2) 486-506 doi:10.1016/j.gr.2014.06.003 | Journal (article/letter/editorial) | | Dongqiao ophiolites in Tibet, the
Oman ophiolite and the Ray-Iz ophiolite in the Polar Urals, Russia. Chromitites...podiform chromitite, zircon, geochronology, SIMS, Oman, Tibet. Polar Urals
2
ACCEPTED MANUSCRIPT
PT...Luobusa and Dongqiao in Tibet, the Oman ophiolite and the Ray-Iz ophiolite of
SC
the Polar Urals, Russia...Zircons were previously reported from the
Luobusa ophiolite (e.g., Hu, 1999; Robinson et al., 2004) and some...some grains were found to be
much older than the ophiolite (Yamamoto et al., 2004: 2013; Robinson et al. |  | | Report (article/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....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...Tectonite peridotite = Mantle sequence
Semail thrust (Base of ophiolite nappe)
.7.1
,:,-i'
"..9i'
9,..'. |  | | Report (article/chapter) | | metamorphic sole to the Oman Ophiolite,
Sumeini Window and Wadi Tayyin: implications
for ophiolite obduction processes...where the inverted metamorphic sole of the Oman Ophiolite are best
exposed, Sumeini Window and Wadi Tayyin...profile is exposed beneath the Semail Thrust,
the base of the ophiolite, from garnet + clinopyroxene-bearing...can be accounted for by the thickness of the ophiolite (15– 20 km). Timing of
peak metamorphism was synchronous...synchronous with the formation of the ophiolite gabbroic– trondhjemite
crustal sequence and eruption |  | | Report (article/chapter) | | of the Semail ophiolite, Oman
J. S. Pallister
SUMMARY: The plutonic rocks of the Semail ophiolite in the...the southeastern Oman Mountains
formed in a spreading-ridge magma chamber that was repeatedly replenished...with most early-formed cumulus minerals
from the ophiolite and is very similar to primitive mid-ocean-ridge...melting at --<25km depth is favoured for the
ophiolite.
Constraints on S e m a i l parent
m a g m a...cumulus suite of
the SemaiI ophiolite in the Jabal Dimh area of the
southeastern Oman mountains is described |  | Trumbull, Robert B., Yang, Jing-Sui, Robinson, Paul T., Di Pierro, Simonpietro, Vennemann, Torsten, Wiedenbeck, Michael (2009) The carbon isotope composition of natural SiC (moissanite) from the Earth’s mantle: New discoveries from ophiolites. Lithos, 113 (3) 612-620 doi:10.1016/j.lithos.2009.06.033 | Journal (article/letter/editorial) | | Keywords:
Moissanite
SIMS
Ophiolites
Luobusa
Diamonds
Semail
a b s t r a c t
Moissanite (natural SiC) has been...recovered from podiform chromitites of several ophiolite complexes,
including the Luobusa and Donqiao ophiolites...Tibet, the Semail ophiolite in Oman and the United Arab
Emirates, and the Ray-Iz ophiolite of the Polar...least locally extremely low redox conditions.
The ophiolite moissanite grains are mostly fragments (20 to...crystals are common in chromitites from
the Luobusa ophiolite. The moissanite is rarely colorless, more commonly |  | | Book | | the
U.S. Geological Survey. During this period ophiolite, an obscure
European geological term, has attained...problems and is now producing a world map of ophiolite distribution.
Participation in many of these meetings...learn considerable geologic detail on numerous ophiolite occurrences. To those colleagues who have freely...ROBERT G. CoLEMAN
Contents
Part I. What is an Ophiolite?
. . . . . . . . . . . . . . ..
1
Part II.... . . . . . . .
17
1. General Discussion of Ophiolite Assemblages
2. Peridotites with Tectonic Fabric |  | | 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...understanding of
key Earth dynamic processes. Between the Oman Mountains in the north and the
Dhofar Mountains |  | | Report (article/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;...world-class sites include the Sifah eclogites, the Oman Exotics, Majlis al-Jinn,
sites of ‘Snowball Earth’ |  | Benham, A. J., Kováč, P., Petterson, M. G., Rojkovic, I., Styles, M. T., Gunn, A. G., McKervey, J. A., Wasy, A. (2009) Chromite and PGE in the Logar Ophiolite Complex, Afghanistan. Applied Earth Science, 118 (2) 45-58 doi:10.1179/174327509x434957 | Journal (article/letter/editorial) | | Chromite and PGE in the Logar Ophiolite
Complex, Afghanistan
A. J. Benham*1, P. Kováč2, M. G. Petterson1...Gunn1, J. A. McKervey1 and A. Wasy{4
The Logar Ophiolite Complex (LOC) is located 30 km south of Kabul...terrigenous-dominated sedimentary units. The
ophiolite represents an obducted remnant of intra-Tethyan...The second type is a high Cr, relatively
PGE-rich dunite and peridotite from a boninitic magma produced...average 12 ppb
and 26 ppb for PtzPdzRh for the dunite and peridotite. Chondrite-normalised PGE patterns |  | | Journal (article/letter/editorial) | | Izu-Bonin-Mariana Forearc
Crust as a Modern
Ophiolite Analogue
Bonin forearc sheeted
dykes encountered... These boninitic lavas,
suprasubduction zone ophiolite, boninite, geochronology
therefore, constitute...harzburgite with
dunite veins (Morishita et al. 2011a). Two different dunites
are present: dunite bearing spinels...e. chromium number, Cr#, greater than
0.8), and dunite containing spinels with medium Cr#
values (0.4–0...6) (Morishita et al. 2011a). These two types
of dunite were in equilibrium with two distinctive melts— |  | | Report (article/chapter) | | and consequences of upper mantle
decoupling and ophiolite displacement
J. G. Spray
Geological Society, London...and consequences of upper mantle decoupling
and ophiolite displacement
J. G. Spray
SUMMARY: The possible...several well-documented ophiolites reveal
that ophiolite igneous crystallization and basal metamorphism...formation
of sub-ophiolite metamorphic rocks are reviewed and the process of ophiolite inception is
reappraised...major part of the teconites, as in the
central ophiolite zone of Yugoslavia (e.g. Pamic
& Majer 1977; Karamata |  | | Report (article/chapter) | | Tectonics of the Masirah Fault Zone and eastern Oman
R . M. S H A C K L E T O N
1 & A . C. R I E S 2...the ophiolite forming Masirah Island define an upthrust linear zone now separated
from the Oman continental...The Melange, like the Semail Melange with which it is correlated,
contains ophiolite and Permian limestone...continuous with the deformation south of the Semai! Ophiolite, although now separated
by the Jebel Ja'alan Uplift...from the Oman continental coast, and during this motion, upthrust of the Masirah
Ophiolite. Then, later |  | | Journal (article/letter/editorial) | | extension
Boninites
Troodos ophiolite (Cyprus)
Oman ophiolite
Pindos ophiolite (Greece)
a b s t r a c t...region (i.e. Mirdita, Pindos, Troodos, Kizildag, Oman)
generally have Penrose-type oceanic crust and contain...component of the
Oman lavas indicates MORB affinity and the majority of the Kizildag and Oman data plot within...discriminant diagram. Furthermore, the Troodos
and Oman lavas do not show any particular Th-enrichment in...V. All rights reserved.
1. Introduction
The ophiolite concept has evolved significantly since the first |  | | Journal (article/letter/editorial) | | limestones: Insights from Wadi Fins, Sultanate of
Oman
Juan Carlos de Obeso, Peter B. Kelemen
PII:
DOI:...limestones: Insights from Wadi
Fins, Sultanate of Oman. Chemge (2018), doi:10.1016/j.chemgeo.2018.09.022...limestones: Insights from Wadi Fins, Sultanate of Oman
Department of Earth and Environmental Sciences...
In the southeastern Oman Mountains the mantle section of the Samail ophiolite is
unconformably capped...deposited in a shallow marine environment after ophiolite emplacement. In the
IP
vicinity of the town |  | | Report (article/chapter) | | and Phanerozoic
times. The upper Proterozoic ophiolite belts in Saudi Arabia and NE Africa indicate that...Precambrian evolution.
Recent studies on the Semail ophiolite in Oman reveal that it was emplaced onto the Arabian...Pan-African mobile belt
(Bakor et al. 1976). The Oman Mesozoic
ophiolites record the history of the Tethyan...cratonization (Fig. 1). The presence of the various
ophiolite belts along prominent sutures in Saudi
Arabia...suture has important tectonic implications. The
ophiolite material must mark a zone of imbrication that |  | | Journal (article/letter/editorial) | | mapping of mineral resources of the Sultanate of Oman
⁎
Sankaran Rajendrana, , Sobhi Nasirb
a
b
Department...Muscat, Oman
Earth Science Research Centre, Sultan Qaboos University, Al-khod, 123 Muscat, Oman
A R T...processing
Mineral resources
Arid region
Sultanate of Oman
Advanced Space borne Thermal Emission and Reflection...the economic mineral resources of the Sultanate of Oman using ASTER and simples image processing methods...and silica, and the rock types
of kimberlite, ophiolite sequence, metamorphic sole, carbonate platform |
|