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Compositional comparisons of metamorphosed carbonaceous chondrites
https://nipr.repo.nii.ac.jp/records/2130
https://nipr.repo.nii.ac.jp/records/2130dce2eaf7-3c46-448a-ae0f-228db76d83af
名前 / ファイル | ライセンス | アクション |
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KJ00000012683.pdf (1.4 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1987-03-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Compositional comparisons of metamorphosed carbonaceous chondrites | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Kallemeyn, Gregory W.
× Kallemeyn, Gregory W. |
|||||
著者所属(英) | ||||||
en | ||||||
Institute of Geophysics and Planetary Physics, University of California | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Five carbonaceous chondrites (Allan Hills 82135,Coolidge, Karoonda, Pecora Escarpment 82500 and Yamato-693) thought to be metamorphosed chondrites of petrologic types 4 or 5 were analyzed by instrumental and radiochemical neutron activation analysis for 28 elements : Na, Mg, Al, K, Ca, Sc, V, Cr, Mn, Fe, Co, Ni, Zn, Ga, As, Se, Br, Ru, Cd, Sb, La, Sm, Eu, Yb, Lu, Os, Ir and Au. Coolidge and Y-693 are members of the CV clan based on refractory lithophile abundances. Coolidge has significantly depleted volatile element abundances relative to CV3 chondrites and is tentatively classified as CV4. Y-693 is compositionally indistinguishable from the oxidized subgroup CV3 chondrites, showing no significant depletion of volatile element abundances, in conflict with the petrographic data indicating type 5; the chondrite may be heterogeneous. Compositional and petrographic data for Karoonda and ALH82135 suggest they form a grouplet, part of a clan with refractory lithophile abundances intermediate between those of the CM-CO and CV clans. Compositional classification of the severely weathered PCA82500 is difficult because of the scatter of data. It is probably closely related to Karoonda and ALH82135. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00733561 | |||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 46, p. 151-161, 発行日 1987-03 |