FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1970448306> ?p ?o ?g. }

• W1970448306 abstract "Abstract Noble gas elemental and isotopic compositions were determined for five CO 2 –CH 4 samples collected around Etna, Sicily, to investigate the geochemical features of the mantle beneath the volcano. The samples contain mantle-derived noble gases. The measured helium isotopic ratios ( 3 He/ 4 He) vary between 5.9 and 6.4 times atmospheric ratio ( R a =1.4×10 −6 ), which are comparable to the ratios of olivines (6.1–8.2 R a ) in the lavas of the same volcano [1]. Neon in the samples is enriched in both 20 Ne and 21 Ne ( 20 Ne/ 22 Ne 9.95–10.7, 21 Ne/ 22 Ne 0.030–0.037), indicating derivation from the mantle. The δ ( 20 Ne/ 22 Ne)/ δ ( 21 Ne/ 22 Ne) values are identical with that of mid-ocean ridge basalts (MORB), indicating a similarity in the time-integrated (U/Ne) ratio between the Etnean magma source and the depleted upper mantle (MORB source). Argon in the samples has 40 Ar/ 36 Ar ratios up to of 1800, which are higher than in atmosphere. These ratios are positively correlated with the 20 Ne/ 22 Ne ratios, indicating a mantle origin of the radiogenic argon. Compared with olivines from the Etnean lavas [1], the argon in our natural gas samples is less contaminated by atmospheric argon. Two samples from a CO 2 well show small but resolvable excess of 129 Xe and 134,136 Xe. The volcanic rocks of Etna, ranging from tholeiites to alkaline, are enriched in incompatible elements. Nd, Sr and Pb isotopes of the volcanic rocks indicate that the magma source is isotopically heterogeneous and contain a component with high Sr, Pb and low Nd isotopic ratios derived from a mantle region which has been enriched in incompatible elements for a few million years [2,3,4] relative to the depleted upper mantle. The helium isotopic ratios of the gas samples are lower than those of MORB and are consistent with geochemical signatures of the solid elements in the Etnean volcanic rocks. However, the observed MORB-type neon is on a MORB correlation array without accumulation of nucleogenic 21 Ne. This apparent decoupling may be explained by a recent mixing of the depleted upper mantle (MORB source) with fluid enriched in both incompatible elements and radiogenic 4 He. When the fluid was formed with a small degree of partial melting, fractionation of radiogenic 4 He from nucleogenic 21 Ne could have occurred because of smaller partition coefficient of He than Ne." @default.
• W1970448306 created "2016-06-24" @default.
• W1970448306 creator A5039336023 @default.
• W1970448306 creator A5044223850 @default.
• W1970448306 creator A5053452656 @default.
• W1970448306 creator A5054045136 @default.
• W1970448306 date "1997-12-01" @default.
• W1970448306 modified "2023-10-02" @default.
• W1970448306 title "MORB-type neon in an enriched mantle beneath Etna, Sicily" @default.
• W1970448306 cites W1680017751 @default.
• W1970448306 cites W1965923240 @default.
• W1970448306 cites W1967390329 @default.
• W1970448306 cites W1968302254 @default.
• W1970448306 cites W1971453987 @default.
• W1970448306 cites W1975469220 @default.
• W1970448306 cites W1977133718 @default.
• W1970448306 cites W1977436212 @default.
• W1970448306 cites W1980359220 @default.
• W1970448306 cites W1982978456 @default.
• W1970448306 cites W1985501963 @default.
• W1970448306 cites W1991174311 @default.
• W1970448306 cites W1992232371 @default.
• W1970448306 cites W2005087041 @default.
• W1970448306 cites W2005407153 @default.
• W1970448306 cites W2018975896 @default.
• W1970448306 cites W2033186998 @default.
• W1970448306 cites W2036918760 @default.
• W1970448306 cites W2039322458 @default.
• W1970448306 cites W2040117278 @default.
• W1970448306 cites W2041348481 @default.
• W1970448306 cites W2051785427 @default.
• W1970448306 cites W2057637207 @default.
• W1970448306 cites W2059257969 @default.
• W1970448306 cites W2064238983 @default.
• W1970448306 cites W2070629618 @default.
• W1970448306 cites W2074847469 @default.
• W1970448306 cites W2077673084 @default.
• W1970448306 cites W2082339235 @default.
• W1970448306 cites W2089539493 @default.
• W1970448306 cites W2094660244 @default.
• W1970448306 cites W2136662655 @default.
• W1970448306 cites W2145091985 @default.
• W1970448306 cites W2154940234 @default.
• W1970448306 cites W2165686932 @default.
• W1970448306 doi "https://doi.org/10.1016/s0012-821x(97)00161-1" @default.
• W1970448306 hasPublicationYear "1997" @default.
• W1970448306 type Work @default.
• W1970448306 sameAs 1970448306 @default.
• W1970448306 citedByCount "26" @default.
• W1970448306 countsByYear W19704483062012 @default.
• W1970448306 countsByYear W19704483062013 @default.
• W1970448306 countsByYear W19704483062014 @default.
• W1970448306 countsByYear W19704483062015 @default.
• W1970448306 countsByYear W19704483062016 @default.
• W1970448306 countsByYear W19704483062020 @default.
• W1970448306 crossrefType "journal-article" @default.
• W1970448306 hasAuthorship W1970448306A5039336023 @default.
• W1970448306 hasAuthorship W1970448306A5044223850 @default.
• W1970448306 hasAuthorship W1970448306A5053452656 @default.
• W1970448306 hasAuthorship W1970448306A5054045136 @default.
• W1970448306 hasConcept C106435967 @default.
• W1970448306 hasConcept C120806208 @default.
• W1970448306 hasConcept C127313418 @default.
• W1970448306 hasConcept C129956564 @default.
• W1970448306 hasConcept C161509811 @default.
• W1970448306 hasConcept C17409809 @default.
• W1970448306 hasConcept C178790620 @default.
• W1970448306 hasConcept C185592680 @default.
• W1970448306 hasConcept C199289684 @default.
• W1970448306 hasConcept C2780364934 @default.
• W1970448306 hasConcept C522602180 @default.
• W1970448306 hasConcept C547737533 @default.
• W1970448306 hasConcept C57016615 @default.
• W1970448306 hasConcept C67236022 @default.
• W1970448306 hasConceptScore W1970448306C106435967 @default.
• W1970448306 hasConceptScore W1970448306C120806208 @default.
• W1970448306 hasConceptScore W1970448306C127313418 @default.
• W1970448306 hasConceptScore W1970448306C129956564 @default.
• W1970448306 hasConceptScore W1970448306C161509811 @default.
• W1970448306 hasConceptScore W1970448306C17409809 @default.
• W1970448306 hasConceptScore W1970448306C178790620 @default.
• W1970448306 hasConceptScore W1970448306C185592680 @default.
• W1970448306 hasConceptScore W1970448306C199289684 @default.
• W1970448306 hasConceptScore W1970448306C2780364934 @default.
• W1970448306 hasConceptScore W1970448306C522602180 @default.
• W1970448306 hasConceptScore W1970448306C547737533 @default.
• W1970448306 hasConceptScore W1970448306C57016615 @default.
• W1970448306 hasConceptScore W1970448306C67236022 @default.
• W1970448306 hasLocation W19704483061 @default.
• W1970448306 hasOpenAccess W1970448306 @default.
• W1970448306 hasPrimaryLocation W19704483061 @default.
• W1970448306 hasRelatedWork W1544284413 @default.
• W1970448306 hasRelatedWork W1562510199 @default.
• W1970448306 hasRelatedWork W1652250154 @default.
• W1970448306 hasRelatedWork W1680017751 @default.
• W1970448306 hasRelatedWork W1813256278 @default.
• W1970448306 hasRelatedWork W1965923240 @default.
• W1970448306 hasRelatedWork W1976082613 @default.
• W1970448306 hasRelatedWork W1981838028 @default.
• W1970448306 hasRelatedWork W2004823750 @default.

• next