FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2480477098> ?p ?o ?g. }

• W2480477098 endingPage "32" @default.
• W2480477098 startingPage "15" @default.
• W2480477098 abstract "Abstract This paper details petrological and geochemical studies of an ultramafic–mafic intrusion in the Southern Eastern Desert of Egypt. The Dahanib complex shows a concentric zonation, from dunites at the core, through chromitites, clinopyroxene-rich dunites, wehrlites, harzburgites, gabbronorites and layered gabbros, to hornblende gabbros/diorites at the rim, similar to other Alaskan-type complexes. These lithologies typically feature cumulate textures and layering. Their pyroxenes (Mg#s, 0.54–0.94) evidence Fe, Mn and Na enrichment, but Al, Cr, Mg and Ti are depleted with differentiation. Their chromian spinels have a wide range of Cr# (0.31–0.61), along with high Ti and Fe, as a result of their origin through crystal accumulation and reaction with interstitial liquids. The clinopyroxenes (Cpxs) in peridotites and gabbroic rocks, which are high in REE concentration (2–100 times chondrite), are depleted in LREE relative to HREE and are similar to Cpx crystallized from asthenospheric melts. The mineral inclusions in spinel, the chemistry of Cpx in peridotites (rich in Al, Cr, Na, Ti and ΣREE = 13.7), and the melts in equilibrium with Cpx suggest that the Neoproterozoic lithosphere were partially refertilized by trace asthenospheric melts. The early magmas were possibly enriched by Mg, Cr, Ni, Ti, V and Sr, while the evolved types were rich in Fe, Mn, Na, Li, Zr, Co and REE via crystal accumulation and the interaction with interstitial liquids. The Neoproterozoic sub-arc mantle in Egypt is chemically heterogeneous and generally low in Nb, Ta, Zr and K, due to the low solubility of HFSE in slab-derived fluids and no other external addition of these elements. The large variations in lithology and chemistry, as well as the occurrence of scattered chromitite clots in the Dahanib peridotites, are related to a continuous supply of primitive magmas and/or the reaction between interstitial liquids and early cumulus crystals during multistage fractional crystallization. The Dahanib Alaskan-type rocks were fractionally crystallized from the hydrous tholeiitic-basaltic melts associated with a continuous supply of primitive magmas at the mantle–crust boundary in a sub-arc setting. Their parental melts are a mixture of the sub-arc mantle-derived melts associated with trace asthenospheric melts from the mantle diapir. The changes in lithology type, mineral composition, and chemistry between the Dahanib intrusion and the nearest intrusions can perhaps be attributed to mantle heterogeneity by several mantle plumes and to slab-derived inputs. These two causes could explain the large variety of parental magmas for Alaskan-type intrusions. There is a genetic link between the origins of ophiolites and Alaskan-type complexes because both of them originated in the sub-arc setting and both exhibit extension characteristics and subduction-zone components." @default.
• W2480477098 created "2016-08-23" @default.
• W2480477098 creator A5010879667 @default.
• W2480477098 creator A5067442143 @default.
• W2480477098 date "2016-10-01" @default.
• W2480477098 modified "2023-09-25" @default.
• W2480477098 title "Petrology of a Neoproterozoic Alaskan-type complex from the Eastern Desert of Egypt: Implications for mantle heterogeneity" @default.
• W2480477098 cites W1493472940 @default.
• W2480477098 cites W1593136970 @default.
• W2480477098 cites W1964276243 @default.
• W2480477098 cites W1966685022 @default.
• W2480477098 cites W1967910599 @default.
• W2480477098 cites W1969859799 @default.
• W2480477098 cites W1971721859 @default.
• W2480477098 cites W1975999587 @default.
• W2480477098 cites W1977206949 @default.
• W2480477098 cites W1979066273 @default.
• W2480477098 cites W1981945638 @default.
• W2480477098 cites W1982185441 @default.
• W2480477098 cites W1983283614 @default.
• W2480477098 cites W1987768108 @default.
• W2480477098 cites W1988866287 @default.
• W2480477098 cites W1991383121 @default.
• W2480477098 cites W2003655297 @default.
• W2480477098 cites W2005770539 @default.
• W2480477098 cites W2006035399 @default.
• W2480477098 cites W2008791491 @default.
• W2480477098 cites W2008865898 @default.
• W2480477098 cites W2012819291 @default.
• W2480477098 cites W2019702436 @default.
• W2480477098 cites W2019943750 @default.
• W2480477098 cites W2023219297 @default.
• W2480477098 cites W2024659493 @default.
• W2480477098 cites W2031447434 @default.
• W2480477098 cites W2038407831 @default.
• W2480477098 cites W2040248478 @default.
• W2480477098 cites W2040489750 @default.
• W2480477098 cites W2042672520 @default.
• W2480477098 cites W2044371599 @default.
• W2480477098 cites W2045375366 @default.
• W2480477098 cites W2046141409 @default.
• W2480477098 cites W2051983192 @default.
• W2480477098 cites W2054620347 @default.
• W2480477098 cites W2056035061 @default.
• W2480477098 cites W2057248218 @default.
• W2480477098 cites W2058473905 @default.
• W2480477098 cites W2063480464 @default.
• W2480477098 cites W2063948740 @default.
• W2480477098 cites W2065550983 @default.
• W2480477098 cites W2071123829 @default.
• W2480477098 cites W2078424797 @default.
• W2480477098 cites W2079627733 @default.
• W2480477098 cites W2088644964 @default.
• W2480477098 cites W2090457820 @default.
• W2480477098 cites W2116535007 @default.
• W2480477098 cites W2122467685 @default.
• W2480477098 cites W2122723749 @default.
• W2480477098 cites W2129175073 @default.
• W2480477098 cites W2132136583 @default.
• W2480477098 cites W2133217483 @default.
• W2480477098 cites W2137939672 @default.
• W2480477098 cites W2137996573 @default.
• W2480477098 cites W2139717154 @default.
• W2480477098 cites W2143468767 @default.
• W2480477098 cites W2144280307 @default.
• W2480477098 cites W2161866809 @default.
• W2480477098 cites W2168193239 @default.
• W2480477098 cites W2169984600 @default.
• W2480477098 cites W2190631360 @default.
• W2480477098 cites W2221806587 @default.
• W2480477098 cites W2994315241 @default.
• W2480477098 doi "https://doi.org/10.1016/j.lithos.2016.07.016" @default.
• W2480477098 hasPublicationYear "2016" @default.
• W2480477098 type Work @default.
• W2480477098 sameAs 2480477098 @default.
• W2480477098 citedByCount "45" @default.
• W2480477098 countsByYear W24804770982016 @default.
• W2480477098 countsByYear W24804770982017 @default.
• W2480477098 countsByYear W24804770982018 @default.
• W2480477098 countsByYear W24804770982019 @default.
• W2480477098 countsByYear W24804770982020 @default.
• W2480477098 countsByYear W24804770982021 @default.
• W2480477098 countsByYear W24804770982022 @default.
• W2480477098 countsByYear W24804770982023 @default.
• W2480477098 crossrefType "journal-article" @default.
• W2480477098 hasAuthorship W2480477098A5010879667 @default.
• W2480477098 hasAuthorship W2480477098A5067442143 @default.
• W2480477098 hasConcept C111472728 @default.
• W2480477098 hasConcept C127313418 @default.
• W2480477098 hasConcept C138885662 @default.
• W2480477098 hasConcept C17409809 @default.
• W2480477098 hasConcept C1965285 @default.
• W2480477098 hasConcept C2776130869 @default.
• W2480477098 hasConcept C5900021 @default.
• W2480477098 hasConcept C67236022 @default.
• W2480477098 hasConceptScore W2480477098C111472728 @default.
• W2480477098 hasConceptScore W2480477098C127313418 @default.
• W2480477098 hasConceptScore W2480477098C138885662 @default.

• next