FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2018177817> ?p ?o ?g. }

• W2018177817 endingPage "181" @default.
• W2018177817 startingPage "163" @default.
• W2018177817 abstract "The Queyras ophiolite and its pelagic sedimentary cover originate from the Ligurian Tethys ocean, which opened in the Late Middle Jurassic and spread during Late Jurassic and Cretaceous times. Three superimposed sequences are distinguished in the obducted units. (A) Ultramafic sequence: its lower part (A1) is mainly made up of mantle-derived tectonite lherzolites which are intruded by a few gabbro bodies (dykes and small magma chambers); the partial melting and the intrusion of the gabbro magma seem to have occurred inside the subcontinental mantle during the continental, preoceanic rifting (− Lissic). Both the lherzolites and the gabbros are sealed up by a major discontinuity (d1) that marks the base of the sedimentary upper part (A2) of the sequence, which is made up of ultramafic breccias, namely the sedimentary ophicalcites OC2 (serpentinite pebbles in a carcareous matrix). (B) Basaltic sequence: thin (a few metres to a few tens of metres, exceptionally a few hundreds) and above all discontinuous theoleiitic pillow lavas. (C) Pelagic sedimentary sequence (Late Middle Jurassic to Late Cretaceous): radiolarian cherts, shales, limestones, calcschists, with numerous intercalations of ophiolitic arenites, breccias and olistoliths; these detrital intercalations which occur especially in the Upper Jurassic and Lower Cretaceous beds witness a repeated tectonic activity of the ocean floor during its spreading. Similar peculiarities are known from other ophiolites that derive from the Ligurian ocean, especially those of Corsica and of the Northern Apennines. Therefore, a significant part of this ocean was characterized by a thin and very discontinuous basaltic layer and by the lack both of a continuous gabbroic layer and of a sheeted dyke complex. Sediments (serpentinite breccias OC2 and pelagic deposits) and/or local, thin basaltic submarine lava-flows were emplaced above an already uncovered mantle-derived ocean floor. If the radiometric dating of the gabbros is accepted without any discussion, the two magmatic events (gabbros in sequence A and Basalts B) were separated by a rather long time span, possibly 30–40 my, which sets a problem. During this interval, however, a complex suite of tectonic, metamorphic (e.g. foliation and metamorphism of the gabbros) and sedimentary events occurred. Nevertheless, other ophiolite massifs of the Alps display different features; for instance, the Viso ophiolite comprises a continuous (40 km long) gabbroic layer overlain by a continuous basaltic layer; but without a sheeted dyke complex. A comparison with the axial part of the Central Atlantic ocean shows both similar features and variations: Queyras-type successions are known close to the mid-Atlantic ridge, and, conversely, the outcrops surveyed along the Vema escarpment exhibit a 3 km thick ocean crust with a gabbroic layer overlain by a 1–1.5 km-thick sheeted dyke complex. Such variations between two parts of the same ocean recall the differences known in the Ligurian vanished ocean, e.g. between the Queyras-Northern Appennines type ophiolite and the Viso-type ophiolite. Genetic models might account for such “patchwork” features." @default.
• W2018177817 created "2016-06-24" @default.
• W2018177817 creator A5052883373 @default.
• W2018177817 creator A5084300899 @default.
• W2018177817 date "1991-01-01" @default.
• W2018177817 modified "2023-10-03" @default.
• W2018177817 title "The Queyras ophiolite West of Monte Viso (Western Alps): Indicator of a pecular ocean floor in the mesozoic tethys" @default.
• W2018177817 cites W1965587197 @default.
• W2018177817 cites W1968553967 @default.
• W2018177817 cites W1971570059 @default.
• W2018177817 cites W1980341531 @default.
• W2018177817 cites W1991617292 @default.
• W2018177817 cites W1999916920 @default.
• W2018177817 cites W2010269787 @default.
• W2018177817 cites W2022966061 @default.
• W2018177817 cites W2025364748 @default.
• W2018177817 cites W2050363055 @default.
• W2018177817 cites W2061235729 @default.
• W2018177817 cites W2067431079 @default.
• W2018177817 cites W2095828434 @default.
• W2018177817 cites W2131688094 @default.
• W2018177817 cites W2317347529 @default.
• W2018177817 cites W2318082385 @default.
• W2018177817 cites W2601092302 @default.
• W2018177817 cites W642264229 @default.
• W2018177817 doi "https://doi.org/10.1016/0264-3707(91)90037-f" @default.
• W2018177817 hasPublicationYear "1991" @default.
• W2018177817 type Work @default.
• W2018177817 sameAs 2018177817 @default.
• W2018177817 citedByCount "33" @default.
• W2018177817 countsByYear W20181778172013 @default.
• W2018177817 countsByYear W20181778172014 @default.
• W2018177817 countsByYear W20181778172015 @default.
• W2018177817 countsByYear W20181778172017 @default.
• W2018177817 countsByYear W20181778172019 @default.
• W2018177817 countsByYear W20181778172020 @default.
• W2018177817 countsByYear W20181778172021 @default.
• W2018177817 countsByYear W20181778172022 @default.
• W2018177817 crossrefType "journal-article" @default.
• W2018177817 hasAuthorship W2018177817A5052883373 @default.
• W2018177817 hasAuthorship W2018177817A5084300899 @default.
• W2018177817 hasConcept C120806208 @default.
• W2018177817 hasConcept C12294951 @default.
• W2018177817 hasConcept C127313418 @default.
• W2018177817 hasConcept C151730666 @default.
• W2018177817 hasConcept C154200439 @default.
• W2018177817 hasConcept C161509811 @default.
• W2018177817 hasConcept C17409809 @default.
• W2018177817 hasConcept C192241223 @default.
• W2018177817 hasConcept C192717286 @default.
• W2018177817 hasConcept C193944797 @default.
• W2018177817 hasConcept C195081551 @default.
• W2018177817 hasConcept C23923706 @default.
• W2018177817 hasConcept C2777598122 @default.
• W2018177817 hasConcept C58097730 @default.
• W2018177817 hasConcept C62074269 @default.
• W2018177817 hasConcept C6494504 @default.
• W2018177817 hasConcept C77928131 @default.
• W2018177817 hasConcept C79605941 @default.
• W2018177817 hasConceptScore W2018177817C120806208 @default.
• W2018177817 hasConceptScore W2018177817C12294951 @default.
• W2018177817 hasConceptScore W2018177817C127313418 @default.
• W2018177817 hasConceptScore W2018177817C151730666 @default.
• W2018177817 hasConceptScore W2018177817C154200439 @default.
• W2018177817 hasConceptScore W2018177817C161509811 @default.
• W2018177817 hasConceptScore W2018177817C17409809 @default.
• W2018177817 hasConceptScore W2018177817C192241223 @default.
• W2018177817 hasConceptScore W2018177817C192717286 @default.
• W2018177817 hasConceptScore W2018177817C193944797 @default.
• W2018177817 hasConceptScore W2018177817C195081551 @default.
• W2018177817 hasConceptScore W2018177817C23923706 @default.
• W2018177817 hasConceptScore W2018177817C2777598122 @default.
• W2018177817 hasConceptScore W2018177817C58097730 @default.
• W2018177817 hasConceptScore W2018177817C62074269 @default.
• W2018177817 hasConceptScore W2018177817C6494504 @default.
• W2018177817 hasConceptScore W2018177817C77928131 @default.
• W2018177817 hasConceptScore W2018177817C79605941 @default.
• W2018177817 hasIssue "2-4" @default.
• W2018177817 hasLocation W20181778171 @default.
• W2018177817 hasOpenAccess W2018177817 @default.
• W2018177817 hasPrimaryLocation W20181778171 @default.
• W2018177817 hasRelatedWork W1969092926 @default.
• W2018177817 hasRelatedWork W1982107830 @default.
• W2018177817 hasRelatedWork W1998535695 @default.
• W2018177817 hasRelatedWork W2059524392 @default.
• W2018177817 hasRelatedWork W2060383077 @default.
• W2018177817 hasRelatedWork W2155052355 @default.
• W2018177817 hasRelatedWork W2160719201 @default.
• W2018177817 hasRelatedWork W2625515608 @default.
• W2018177817 hasRelatedWork W2753243649 @default.
• W2018177817 hasRelatedWork W4233161209 @default.
• W2018177817 hasVolume "13" @default.
• W2018177817 isParatext "false" @default.
• W2018177817 isRetracted "false" @default.
• W2018177817 magId "2018177817" @default.
• W2018177817 workType "article" @default.