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Acfer

Weber D, Zinner E, Bischoff A (1995) Trace element abundances and magnesium, calcium, and titanium isotopic compositions of grossite-containing inclusions from the carbonaceous chondrite Acfer 182. Geochim Cosmochim Acta 59 803-823... [Pg.288]

Grady MM, PiUinger CT (1993) Acfer 182 search for the location of N-emiched nitrogen. Earth Planet Sci Lett 116 165-180... [Pg.246]

Sugiura, N. and Krot, A.N. (2007) 26Al-26Mg systematics of Ca-Al-rich inclusions, amoeboid olivine aggregates and chondrules form the ungrouped carbonaceous chondrite Acfer 094. Meteoritics and Planetary Science, 42, 1183-1195. [Pg.352]

Grady, M. M. Pillinger, C. T. 1992 The continuing search for the location of 15N-enriched nitrogen in Acfer 182. Meteoritics 27, 226-227. [Pg.83]

Pedroni, A., Begemann, F. (1994) On unfractionated solar gases in the H3-6 meteorite Acfer 111. Meteoritics, 29, 632-42. [Pg.271]

Figure 2.5 Presolar grains from primitive meteorites. Left presolar SiC from the Murchison meteorite scale bar is 200 nm. Middle presolar graphite from Murchison scale bar is 1 pm. Right presolar silicate grain (within the white circle) in the matrix of the Acfer 094 meteorite scale bar is 500 nm. Photo credit Max Planck Institute for Chemistry. Figure 2.5 Presolar grains from primitive meteorites. Left presolar SiC from the Murchison meteorite scale bar is 200 nm. Middle presolar graphite from Murchison scale bar is 1 pm. Right presolar silicate grain (within the white circle) in the matrix of the Acfer 094 meteorite scale bar is 500 nm. Photo credit Max Planck Institute for Chemistry.
Acfer 0942 Unique Type 3 Si-Fe-Mg amorphous material, olivine, enstatite, pyrrhotite Mainly submicron olivines and pyroxenes embedded in groundmass of amorphous silicate... [Pg.213]

Messenger S. and Bernatowicz T. J. (2000) Search for presolar silicates in Acfer 094. Meteorit. Planet. Sci. 35, A109. [Pg.40]

Figure 9 Combined elemental maps of (a) the C03.1 carbonaceous chondrite Kainsaz and (b) ungrouped CO/CM-like carbonaceous chondrite Acfer 094. Kainsaz contains abundant small chondrules, CAIs, and AOAs. Acfer 094 is texturally and mineralogically similar to CO chondrites, but contains higher abundance of matrix. AOA = amoeboid ohvine aggregate BO = barred olivine chondrule PO(P)i n = type I (II) porphyritic olivine (pyroxene) chondrule. Figure 9 Combined elemental maps of (a) the C03.1 carbonaceous chondrite Kainsaz and (b) ungrouped CO/CM-like carbonaceous chondrite Acfer 094. Kainsaz contains abundant small chondrules, CAIs, and AOAs. Acfer 094 is texturally and mineralogically similar to CO chondrites, but contains higher abundance of matrix. AOA = amoeboid ohvine aggregate BO = barred olivine chondrule PO(P)i n = type I (II) porphyritic olivine (pyroxene) chondrule.
Bischoff A., Palme H., Schultz L., Weber D., Weber H., and Spettel B. (1993b) Acfer 182 and paired samples, an iron-rich carbonaceous chondrite similarities with ALH85085 and relationship to CR chondrites. Geochim. Cosmochim. Acta SI, 2631-2648. [Pg.122]

Greshake A. (1997) The primitive matrix components of the unique carbonaceous chondrite Acfer 094 a TEM study. Geochim. Cosmochim. Acta 61, 437-452. [Pg.123]

Newton J., Bischoff A., Arden J. W., Franchi I. A., Geiger T., Greshake A., and Pillinger C. T. (1995) Acfer 094, a uniquely primitive carbonaceous chondrite from the Sagara. Meteoritics 30, 47-56. [Pg.126]

Matrix of ungrouped C chondrites, Acfer 094, and Adelaide H-L-LL3 chondrite matrices KS chondrite matrix (Kakangari)... [Pg.145]

Figure 5 Backscattered electron images of refractory inclusions with clear condensation signatures (a) CAI in Adelaide (unique carbonaceous chondrite), (b) CAI in Efremovka (CV3), and (c) AOA in Acfer 094 (unique carbonaceous chondrite). Figure 5 Backscattered electron images of refractory inclusions with clear condensation signatures (a) CAI in Adelaide (unique carbonaceous chondrite), (b) CAI in Efremovka (CV3), and (c) AOA in Acfer 094 (unique carbonaceous chondrite).
Figure 11 Compositions of olivine in AO As from the reduced CV chondrites Vigarano (a), Leoville (b), Efremovka (c), oxidized CV chondrite Allende (d), CR chondrites (e), CH and CB chondrites (f), unique carbonaceous chondrites Adelaide (g), and Acfer 094 (h). Olivines in CRs, Adelaide, and Acfer 094 are magnesium-rich compared to olivines in CV AO As. Fayalite contents in olivines from CV AO As increase in the order Leoville and Vigarano, Efremovka, Allende this is correlated with the degree of secondary alteration and thermal metamorphism experienced by CV chondrites. Data for Allende AO As are from Hashimoto and Grossman (1987) and for Efremovka, Leoville, and Vigarano AOAs from Komatsu et al (2001). Figure 11 Compositions of olivine in AO As from the reduced CV chondrites Vigarano (a), Leoville (b), Efremovka (c), oxidized CV chondrite Allende (d), CR chondrites (e), CH and CB chondrites (f), unique carbonaceous chondrites Adelaide (g), and Acfer 094 (h). Olivines in CRs, Adelaide, and Acfer 094 are magnesium-rich compared to olivines in CV AO As. Fayalite contents in olivines from CV AO As increase in the order Leoville and Vigarano, Efremovka, Allende this is correlated with the degree of secondary alteration and thermal metamorphism experienced by CV chondrites. Data for Allende AO As are from Hashimoto and Grossman (1987) and for Efremovka, Leoville, and Vigarano AOAs from Komatsu et al (2001).
Figure 15 Oxygen-isotopic compositions of individual minerals in (a) aluminum-rich chondrules from ordinary chondrites (Russell et at, 2000) and (h) CR carhonaceous chondrites (Krot et ah, 2002h). (c) Oxygen-isotopic compositions of individual minerals in the CAI-hearing chondmle 17 from Acfer 094 (data from Krot et al, 2003a) (Ahhreviations chd, chondmle cpx, clinopyroxene gl, glass hih, hihonite nph, nepheline ol, olivine opx, orthopyroxene pi, plagioclase px, pyroxene sp, spinel). Figure 15 Oxygen-isotopic compositions of individual minerals in (a) aluminum-rich chondrules from ordinary chondrites (Russell et at, 2000) and (h) CR carhonaceous chondrites (Krot et ah, 2002h). (c) Oxygen-isotopic compositions of individual minerals in the CAI-hearing chondmle 17 from Acfer 094 (data from Krot et al, 2003a) (Ahhreviations chd, chondmle cpx, clinopyroxene gl, glass hih, hihonite nph, nepheline ol, olivine opx, orthopyroxene pi, plagioclase px, pyroxene sp, spinel).
Acfer 094 Amorphous silicate, forsterite, enstatite, pyrrhotite, ferrihydrite, traces of phyllosilicate 8... [Pg.179]

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See also in sourсe #XX -- [ Pg.94 , Pg.209 , Pg.214 , Pg.216 , Pg.281 ]



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