Subduction and obduction: two stages in the Eo-Alpine tectonometamorphic evolution of the Oman Mountains

@article{LeMtour1990SubductionAO,
  title={Subduction and obduction: two stages in the Eo-Alpine tectonometamorphic evolution of the Oman Mountains},
  author={J. Le M{\'e}tour and D. Rabu and M. Tegyey and François B{\'e}chennec and M. Beurrier and Michel Villey},
  journal={Geological Society, London, Special Publications},
  year={1990},
  volume={49},
  pages={327 - 339}
}
Abstract The platform unit of the Oman Mountains is composed of shelf sedimentary and volcanic rocks, ranging in age from late Proterozoic to late Turonian-Coniacian, that were deformed mainly during the polyphase Eo-Alpine tectogenesis. In the late Turonian-Coniacian tangential shearing deformation with NE (oceanward) vergence occurred under HP/LT conditions of regional metamorphism. This tectonic phase was largely responsible for the structural and metamorphic zonation of the platform unit. A… 

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References

SHOWING 1-10 OF 48 REFERENCES
Tectonic setting for ophiolite obduction in Oman.
The Samail ophiolite is part of an elongate belt in the Middle East that forms an integral part of the Alpine mountain chains that make up the northern boundary of the Arabian-African plate. The
Cretaceous high pressure metamorphism in NE Oman and its relationship to subduction and ophiolite nappe emplacement
  • S. Lippard
  • Geology
    Journal of the Geological Society
  • 1983
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
Late Cretaceous Nappes in Oman Mountains and Their Geologic Evolution
The rocks of the central Oman Mountains can be divided into five main units. These comprise, from bottom to top: a pre-Permian basement that stratigraphically is overlain by mostly shallow-marine
Metamorphic zonations on presumably subducted lithospheric plates from Japan, California and the Alps
High-pressure blueschist-type mineral parageneses from the Sanbagawa belt of southwestern Japan, the Franciscan terrane of western California and the Sesia zone, Pennine and Helvetic realms of the
The Geology and Tectonics of Oman and of Parts of South-Eastern Arabia
  • G. M. Lees
  • Geology
    Quarterly Journal of the Geological Society of London
  • 1928
The raison d'être of the great mountain-range of Oman, projecting like a buttress across the entrance to the Persian Gulf, is an alluring problem for geologists and geographers alike. This rugged
Processes in magma chambers beneath spreading axes: evidence from magmatic associations in the Oman Ophiolite
Ophiolite complexes, where complete, consist of tectonized ultramafic rocks overlain by layered gabbros and peridotites, isotropic gabbros and plagiogranites, a sheeted dyke swarm and pillowed
...
1
2
3
4
5
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