Mineralized fault zone parallel to the Oman ophiolite spreading axis

During the formation of the Upper Cretaceous Oman ophiolite by sea-floor spreading, faulting parallel to the spreading axis produced a 250-m escarpment. This escarpment now forms the western margin of a 5-km-wide north-south-oriented valley in northern Oman floored by pillow lavas, flow breccias, la...

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Bibliographic Details
Published in:Geology (Boulder) 1977-09, Vol.5 (9), p.534-538
Main Authors: Smewing, J. D, Simonian, K. O, Elboushi, I. M, Gass, I. G
Format: Article
Language:English
Subjects:
allochthons
Arabian Peninsula
Asia
Cretaceous
emplacement
fault zones
genesis
Geophysics
igneous rocks
indicators
Mesozoic
mineralization
nappes
Oman
ophiolite
plate tectonics
plutonic rocks
sea-floor spreading
Sohar
solid Earth (tectonophysics)
spreading centers
tectonophysics
ultramafics
Upper Cretaceous
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Description
Summary:During the formation of the Upper Cretaceous Oman ophiolite by sea-floor spreading, faulting parallel to the spreading axis produced a 250-m escarpment. This escarpment now forms the western margin of a 5-km-wide north-south-oriented valley in northern Oman floored by pillow lavas, flow breccias, laminated mudstones, and mass-flow, ophiolite-derived sediments; sulfide mineralization is concentrated along the fault zone. The features described are closely comparable with those reported in the FAMOUS area and those in a paleo-transform fault zone in the Troodos massif, Cyprus, and are significant in delineating mineralized zones in ophiolites.
ISSN:0091-7613
1943-2682
DOI:10.1130/0091-7613(1977)5<534:MFZPTT>2.0.CO;2