FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2040341787> ?p ?o ?g. }

• W2040341787 endingPage "477" @default.
• W2040341787 startingPage "467" @default.
• W2040341787 abstract "A method for selective annealing of cosmic-ray tracks has been developed, permitting determination of fission-track ages in the presence of a large background of cosmic-ray tracks. The mesosiderite Bondoc contains 41 fission tracks/cm2, of which about 75% are due to neutron-induced fission of U235 during cosmic-ray exposure. Its net fission-track age is 140 ± 40 Myr, nearly identical to its cosmic-ray exposure age of 150 Myr. The mesosiderite Mincy has a fission-track age of 1500 ± 400 Myr. Nakhla (nakhlite) contains an excess of apparent fission tracks, which may be either genuine fission tracks from Pu244 or etch pits mimicking fission tracks in length, thermal stability, random orientation, and other characteristics. On the assumption that they are fission tracks, the Pu244/U238 ratio at the onset of track retention in Nakhla was (3.1 ± 1.3) × 10−3, nearly an order of magnitude lower than the initial solar system ratio. This may reflect a chemical fractionation of Pu and U, or a late impact or magmatic event. Different minerals of the Washougal howardite have different Pu244/U238 ratios, from (24 ± 7) × 10−3 to (2.3 ± 0.7) × 10−3. This may imply a succession of impacts over a period of time. Additionally, Pu and U may have been chemically fractionated from each other in this meteorite. Shocked meteorites show no consistent pattern in the retentivity of fission tracks and of fissiogenic or radiogenic noble gases. Some meteorites, e.g. Bondoc, Serra de Magé, and Mincy, retain gases more completely than tracks; others, e.g. Nakhla and Allende, retain them less completely. Uranium was determined in feldspar and/or pyroxene from 19 Ca-rich achondrites and mesosiderites. For most, only upper limits of 0.01–0.03 ppb were obtained. Apparently the uranium in these meteorites resides almost exclusively in minor phases, as in terrestrial and lunar rocks." @default.
• W2040341787 created "2016-06-24" @default.
• W2040341787 creator A5050973162 @default.
• W2040341787 creator A5069521693 @default.
• W2040341787 date "1976-04-01" @default.
• W2040341787 modified "2023-09-27" @default.
• W2040341787 title "Fission-track ages of four meteorites" @default.
• W2040341787 cites W1553323294 @default.
• W2040341787 cites W1979285904 @default.
• W2040341787 cites W1980366663 @default.
• W2040341787 cites W1980644969 @default.
• W2040341787 cites W1980899453 @default.
• W2040341787 cites W1981756140 @default.
• W2040341787 cites W1988853464 @default.
• W2040341787 cites W1993357164 @default.
• W2040341787 cites W1997753568 @default.
• W2040341787 cites W2000672355 @default.
• W2040341787 cites W2006769488 @default.
• W2040341787 cites W2017159535 @default.
• W2040341787 cites W2017314416 @default.
• W2040341787 cites W2020275917 @default.
• W2040341787 cites W2021451545 @default.
• W2040341787 cites W2030670509 @default.
• W2040341787 cites W2035191326 @default.
• W2040341787 cites W2039401492 @default.
• W2040341787 cites W2039466369 @default.
• W2040341787 cites W2040328046 @default.
• W2040341787 cites W2040447742 @default.
• W2040341787 cites W2043614061 @default.
• W2040341787 cites W2046687244 @default.
• W2040341787 cites W2047046308 @default.
• W2040341787 cites W2048065666 @default.
• W2040341787 cites W2049408523 @default.
• W2040341787 cites W2050723970 @default.
• W2040341787 cites W2050965083 @default.
• W2040341787 cites W2052427580 @default.
• W2040341787 cites W2056211008 @default.
• W2040341787 cites W2061159379 @default.
• W2040341787 cites W2069331980 @default.
• W2040341787 cites W2070556763 @default.
• W2040341787 cites W2070668219 @default.
• W2040341787 cites W2075785150 @default.
• W2040341787 cites W2083522192 @default.
• W2040341787 cites W2094464692 @default.
• W2040341787 cites W2095503779 @default.
• W2040341787 cites W2128917559 @default.
• W2040341787 cites W2141984008 @default.
• W2040341787 cites W2155133204 @default.
• W2040341787 cites W2161150834 @default.
• W2040341787 cites W4246132118 @default.
• W2040341787 doi "https://doi.org/10.1016/0016-7037(76)90012-0" @default.
• W2040341787 hasPublicationYear "1976" @default.
• W2040341787 type Work @default.
• W2040341787 sameAs 2040341787 @default.
• W2040341787 citedByCount "17" @default.
• W2040341787 countsByYear W20403417872012 @default.
• W2040341787 crossrefType "journal-article" @default.
• W2040341787 hasAuthorship W2040341787A5050973162 @default.
• W2040341787 hasAuthorship W2040341787A5069521693 @default.
• W2040341787 hasConcept C111309251 @default.
• W2040341787 hasConcept C116862484 @default.
• W2040341787 hasConcept C121332964 @default.
• W2040341787 hasConcept C12294094 @default.
• W2040341787 hasConcept C127313418 @default.
• W2040341787 hasConcept C130635790 @default.
• W2040341787 hasConcept C152568617 @default.
• W2040341787 hasConcept C17409809 @default.
• W2040341787 hasConcept C185544564 @default.
• W2040341787 hasConcept C2777746296 @default.
• W2040341787 hasConcept C2780609349 @default.
• W2040341787 hasConcept C57016615 @default.
• W2040341787 hasConcept C67236022 @default.
• W2040341787 hasConcept C87355193 @default.
• W2040341787 hasConcept C92217149 @default.
• W2040341787 hasConceptScore W2040341787C111309251 @default.
• W2040341787 hasConceptScore W2040341787C116862484 @default.
• W2040341787 hasConceptScore W2040341787C121332964 @default.
• W2040341787 hasConceptScore W2040341787C12294094 @default.
• W2040341787 hasConceptScore W2040341787C127313418 @default.
• W2040341787 hasConceptScore W2040341787C130635790 @default.
• W2040341787 hasConceptScore W2040341787C152568617 @default.
• W2040341787 hasConceptScore W2040341787C17409809 @default.
• W2040341787 hasConceptScore W2040341787C185544564 @default.
• W2040341787 hasConceptScore W2040341787C2777746296 @default.
• W2040341787 hasConceptScore W2040341787C2780609349 @default.
• W2040341787 hasConceptScore W2040341787C57016615 @default.
• W2040341787 hasConceptScore W2040341787C67236022 @default.
• W2040341787 hasConceptScore W2040341787C87355193 @default.
• W2040341787 hasConceptScore W2040341787C92217149 @default.
• W2040341787 hasIssue "4" @default.
• W2040341787 hasLocation W20403417871 @default.
• W2040341787 hasOpenAccess W2040341787 @default.
• W2040341787 hasPrimaryLocation W20403417871 @default.
• W2040341787 hasRelatedWork W1997041959 @default.
• W2040341787 hasRelatedWork W2040341787 @default.
• W2040341787 hasRelatedWork W2123531734 @default.
• W2040341787 hasRelatedWork W2213347917 @default.
• W2040341787 hasRelatedWork W2285479602 @default.

• next