FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W606714311> ?p ?o ?g. }

• W606714311 abstract "A reconnaissance survey of the 1000 Km(^2) of Masirah Island, Oman, has revealed a fully-developed ophiolite complex which is believed to represent a fragment of Cretaceous ocean crust and upper mantle generated at a constructive plate margin. The complex consists of mantle serpentinites, plutonic rocks ranging from dunite to trondhjemite, a sheeted dyke complex and pillow lava-sediment sequences, all of which have been chemically and petrographically analysed.Several belts of serpentinite occur within the ophiolite associated with major fault-lines. The serpentinites are clearly derived from depleted harzburgitic mantle and their field relations suggest that some were emplaced in the oceanic environment.The chemistry of the plutonic rocks suggests that they are products of dominantly open-system fractional crystallisation of tholeiitic liquid(s), possibly in several discrete magma chambers. Modelling of trace and RE elements suggests that moderate degrees of mantle peridotite melting were involved in production of the magma chamber parental liquid(s).At a higher crustal level sheeted dyke-massive gabbro relationships are interpreted in a model of roof underplating, which causes a decreasing frequency of dyke injection. Metamorphism of the sheeted dykes and lavas is interpreted as sub-sea floor in origin and its effect on whole-rock chemistry is assessed. The dykes and lavas have a chemistry largely typical of present-day ocean tholeiites and the relative contributions of the processes of partial melting and fractional crystallisation to that chemistry are evaluated.Two localised volcanic groups were identified, which appear to have enriched chemistries compatible with origin at off -axis oceanic islands.A major tectonic zone cross-cuts the ophiolite units and has features reminiscent of the modern oceanic transform faults. The importance of this structure, both in the oceanic environment and during the process of ophiolite emplacement, is assessed.Intrusive into the ophiolite is a granite whose trace and RE element chemistry is alien to the oceanic environment and suggests melting of continental crustFinally, a synthesized model of the former constructive margin is produced and an attempt is made to define the type of spreading centre represented. Comparison of the Masirah Ophiolite with the Semail Ophiolite of the Oman Mountains suggests that their former correlation may be ill founded. An assessment of late Mesozoic -early Tertiary plate motions indicates an origin during Cretaceous sea-floor spreading of an early Indian Ocean. Several features may indicate a slow-spreading, much-faulted, constructive margin." @default.
• W606714311 created "2016-06-24" @default.
• W606714311 creator A5022460749 @default.
• W606714311 date "1979-01-01" @default.
• W606714311 modified "2023-09-27" @default.
• W606714311 title "A field, petrological and geochemical study of the Masirah Ophiolite, Oman" @default.
• W606714311 hasPublicationYear "1979" @default.
• W606714311 type Work @default.
• W606714311 sameAs 606714311 @default.
• W606714311 citedByCount "0" @default.
• W606714311 crossrefType "dissertation" @default.
• W606714311 hasAuthorship W606714311A5022460749 @default.
• W606714311 hasConcept C113754120 @default.
• W606714311 hasConcept C118270999 @default.
• W606714311 hasConcept C11872896 @default.
• W606714311 hasConcept C120806208 @default.
• W606714311 hasConcept C127313418 @default.
• W606714311 hasConcept C151730666 @default.
• W606714311 hasConcept C154200439 @default.
• W606714311 hasConcept C16942324 @default.
• W606714311 hasConcept C17409809 @default.
• W606714311 hasConcept C183222429 @default.
• W606714311 hasConcept C193944797 @default.
• W606714311 hasConcept C23923706 @default.
• W606714311 hasConcept C42787717 @default.
• W606714311 hasConcept C58097730 @default.
• W606714311 hasConcept C5900021 @default.
• W606714311 hasConcept C67236022 @default.
• W606714311 hasConcept C77928131 @default.
• W606714311 hasConcept C79572550 @default.
• W606714311 hasConcept C79605941 @default.
• W606714311 hasConcept C84372278 @default.
• W606714311 hasConcept C9566828 @default.
• W606714311 hasConceptScore W606714311C113754120 @default.
• W606714311 hasConceptScore W606714311C118270999 @default.
• W606714311 hasConceptScore W606714311C11872896 @default.
• W606714311 hasConceptScore W606714311C120806208 @default.
• W606714311 hasConceptScore W606714311C127313418 @default.
• W606714311 hasConceptScore W606714311C151730666 @default.
• W606714311 hasConceptScore W606714311C154200439 @default.
• W606714311 hasConceptScore W606714311C16942324 @default.
• W606714311 hasConceptScore W606714311C17409809 @default.
• W606714311 hasConceptScore W606714311C183222429 @default.
• W606714311 hasConceptScore W606714311C193944797 @default.
• W606714311 hasConceptScore W606714311C23923706 @default.
• W606714311 hasConceptScore W606714311C42787717 @default.
• W606714311 hasConceptScore W606714311C58097730 @default.
• W606714311 hasConceptScore W606714311C5900021 @default.
• W606714311 hasConceptScore W606714311C67236022 @default.
• W606714311 hasConceptScore W606714311C77928131 @default.
• W606714311 hasConceptScore W606714311C79572550 @default.
• W606714311 hasConceptScore W606714311C79605941 @default.
• W606714311 hasConceptScore W606714311C84372278 @default.
• W606714311 hasConceptScore W606714311C9566828 @default.
• W606714311 hasLocation W6067143111 @default.
• W606714311 hasOpenAccess W606714311 @default.
• W606714311 hasPrimaryLocation W6067143111 @default.
• W606714311 hasRelatedWork W127044485 @default.
• W606714311 hasRelatedWork W1484329005 @default.
• W606714311 hasRelatedWork W1965954133 @default.
• W606714311 hasRelatedWork W1967293314 @default.
• W606714311 hasRelatedWork W1983307310 @default.
• W606714311 hasRelatedWork W1999214929 @default.
• W606714311 hasRelatedWork W2027777972 @default.
• W606714311 hasRelatedWork W2028858476 @default.
• W606714311 hasRelatedWork W2037248050 @default.
• W606714311 hasRelatedWork W2050092460 @default.
• W606714311 hasRelatedWork W2090302582 @default.
• W606714311 hasRelatedWork W2104976255 @default.
• W606714311 hasRelatedWork W2148298844 @default.
• W606714311 hasRelatedWork W2156728224 @default.
• W606714311 hasRelatedWork W2165094726 @default.
• W606714311 hasRelatedWork W2271373038 @default.
• W606714311 hasRelatedWork W2388473967 @default.
• W606714311 hasRelatedWork W2496744623 @default.
• W606714311 hasRelatedWork W2899380309 @default.
• W606714311 hasRelatedWork W3112491876 @default.
• W606714311 isParatext "false" @default.
• W606714311 isRetracted "false" @default.
• W606714311 magId "606714311" @default.
• W606714311 workType "dissertation" @default.