Matches in SemOpenAlex for { <https://semopenalex.org/work/W2005751570> ?p ?o ?g. }
- W2005751570 endingPage "1058" @default.
- W2005751570 startingPage "1043" @default.
- W2005751570 abstract "Abstract— Oxygen isotopes have been measured by ion microprobe in individual minerals (spinel, Al-Ti-diopside, melilite, and anorthite) within four relatively unaltered, fine-grained, spinel-rich Ca-Al-rich inclusions (CAIs) from the reduced CV chondrite Efremovka. Spinel is uniformly 16O-rich (Δ17O ≤ −20‰) in all four CAIs; Al-Ti-diopside is similarly 16O-rich in all but one CAI, where it has smaller 16O excesses (-15‰ ≤ Δ17O ≤ −10‰). Anorthite and melilite vary widely in composition from 16O-rich to 16O-poor (-22‰ ≤ Δ17O ≤ −5‰). Two of the CAIs are known to have group II volatility-fractionated rare-earth-element patterns, which is typical of this variety of CAI and which suggests formation by condensation. The association of such trace element patterns with 16O-enrichment in these CAIs suggests that they formed by gas-solid condensation from an 16O-rich gas. They subsequently experienced thermal processing in an 16O-poor reservoir, resulting in partial oxygen isotope exchange. Within each inclusion, oxygen isotope variations from mineral to mineral are consistent with solid-state oxygen self-diffusion at the grain-to-grain scale, but such a model is not consistent with isotopic variations at a larger scale in two of the CAIs. The spatial association of 16O depletions with both elevated Fe contents in spinel and the presence of nepheline suggests that late-stage iron-alkali metasomatism played some role in modifying the isotopic patterns in some CAIs. One of the CAIs is a compound object consisting of a coarse-grained, melilite-rich (type A) lithology joined to a fine-grained, spinel-rich one. Melilite and anorthite in the fine-grained portion are mainly 16O-rich, whereas melilite in the type A portion ranges from 16O-rich to 16O-poor, suggesting that oxygen isotope exchange predated the joining together of the two parts and that both 16O-rich and 16O-poor gaseous reservoirs existed simultaneously in the early solar nebula." @default.
- W2005751570 created "2016-06-24" @default.
- W2005751570 creator A5022861258 @default.
- W2005751570 creator A5044558554 @default.
- W2005751570 creator A5046734270 @default.
- W2005751570 creator A5050785915 @default.
- W2005751570 creator A5087305577 @default.
- W2005751570 date "2005-07-01" @default.
- W2005751570 modified "2023-09-30" @default.
- W2005751570 title "Fine-grained, spinel-rich inclusions from the reduced CV chondrite Efremovka: II. Oxygen isotopic compositions" @default.
- W2005751570 cites W1964725905 @default.
- W2005751570 cites W1966044040 @default.
- W2005751570 cites W1976754373 @default.
- W2005751570 cites W1981745675 @default.
- W2005751570 cites W1982250002 @default.
- W2005751570 cites W1986018454 @default.
- W2005751570 cites W1988967014 @default.
- W2005751570 cites W1989252877 @default.
- W2005751570 cites W1993575177 @default.
- W2005751570 cites W1996251441 @default.
- W2005751570 cites W1997496219 @default.
- W2005751570 cites W2000333722 @default.
- W2005751570 cites W2004350067 @default.
- W2005751570 cites W2017073685 @default.
- W2005751570 cites W2017100888 @default.
- W2005751570 cites W2021974702 @default.
- W2005751570 cites W2023871323 @default.
- W2005751570 cites W2029264305 @default.
- W2005751570 cites W2031624284 @default.
- W2005751570 cites W2038023260 @default.
- W2005751570 cites W2039775825 @default.
- W2005751570 cites W2044910526 @default.
- W2005751570 cites W2047821352 @default.
- W2005751570 cites W2049267060 @default.
- W2005751570 cites W2050499872 @default.
- W2005751570 cites W2056942192 @default.
- W2005751570 cites W2061330799 @default.
- W2005751570 cites W2068408071 @default.
- W2005751570 cites W2076867513 @default.
- W2005751570 cites W2082754633 @default.
- W2005751570 cites W2083938905 @default.
- W2005751570 cites W2084712411 @default.
- W2005751570 cites W2091037243 @default.
- W2005751570 cites W2093616403 @default.
- W2005751570 cites W2100701854 @default.
- W2005751570 cites W2117293997 @default.
- W2005751570 cites W2127222525 @default.
- W2005751570 cites W2143059502 @default.
- W2005751570 cites W2152164310 @default.
- W2005751570 cites W3044835684 @default.
- W2005751570 cites W4251182168 @default.
- W2005751570 cites W2158613958 @default.
- W2005751570 doi "https://doi.org/10.1111/j.1945-5100.2005.tb00172.x" @default.
- W2005751570 hasPublicationYear "2005" @default.
- W2005751570 type Work @default.
- W2005751570 sameAs 2005751570 @default.
- W2005751570 citedByCount "27" @default.
- W2005751570 countsByYear W20057515702012 @default.
- W2005751570 countsByYear W20057515702013 @default.
- W2005751570 countsByYear W20057515702014 @default.
- W2005751570 countsByYear W20057515702016 @default.
- W2005751570 countsByYear W20057515702017 @default.
- W2005751570 countsByYear W20057515702018 @default.
- W2005751570 countsByYear W20057515702019 @default.
- W2005751570 countsByYear W20057515702020 @default.
- W2005751570 countsByYear W20057515702021 @default.
- W2005751570 countsByYear W20057515702023 @default.
- W2005751570 crossrefType "journal-article" @default.
- W2005751570 hasAuthorship W2005751570A5022861258 @default.
- W2005751570 hasAuthorship W2005751570A5044558554 @default.
- W2005751570 hasAuthorship W2005751570A5046734270 @default.
- W2005751570 hasAuthorship W2005751570A5050785915 @default.
- W2005751570 hasAuthorship W2005751570A5087305577 @default.
- W2005751570 hasConcept C107872376 @default.
- W2005751570 hasConcept C113196181 @default.
- W2005751570 hasConcept C116862484 @default.
- W2005751570 hasConcept C121332964 @default.
- W2005751570 hasConcept C127313418 @default.
- W2005751570 hasConcept C130635790 @default.
- W2005751570 hasConcept C151730666 @default.
- W2005751570 hasConcept C17409809 @default.
- W2005751570 hasConcept C185592680 @default.
- W2005751570 hasConcept C199289684 @default.
- W2005751570 hasConcept C2776230739 @default.
- W2005751570 hasConcept C2777018398 @default.
- W2005751570 hasConcept C2778635928 @default.
- W2005751570 hasConcept C2778993962 @default.
- W2005751570 hasConcept C2779289598 @default.
- W2005751570 hasConcept C34682378 @default.
- W2005751570 hasConcept C71468253 @default.
- W2005751570 hasConcept C87355193 @default.
- W2005751570 hasConceptScore W2005751570C107872376 @default.
- W2005751570 hasConceptScore W2005751570C113196181 @default.
- W2005751570 hasConceptScore W2005751570C116862484 @default.
- W2005751570 hasConceptScore W2005751570C121332964 @default.
- W2005751570 hasConceptScore W2005751570C127313418 @default.
- W2005751570 hasConceptScore W2005751570C130635790 @default.
- W2005751570 hasConceptScore W2005751570C151730666 @default.