Kapoeta (Howardite)


Country: Sudan
State/District: Equatoria
Date of fall/find: Fell 1942, April 22 1900
Total known weight: 11.355 kg
Number of pieces: 1
Type: Achondrite, howardite, brecciated

Meteoritical Bulletin record: Click here


A stone of 11.355kg fell on the Kapoeta-Nathalani road, K.Fredriksson and K.Keil, GCA, 1963, 27, p.717, M.H.Hey, Cat. Met., 1966, p.230. Described and analyzed, 13.96% total Fe, B.Mason and H.B.Wiik, Am. Mus. Novit., 1967, (2273). Contains crystals evenly irradiated by solar flare particles, P.Pellas et al., Nature, 1969, 223, p.272. Distribution of He, Ne and Ar, G.H.Megrue, Meteorite Research, ed. P.M.Millman, D.Reidel, Dordrecht-Holland, 1969, p.922. Xe isotopic composition of dark material, M.W.Rowe, GCA, 1970, 34, p.1019. Fossil track studies, L.Wilkening et al., Earth Planet. Sci. Lett., 1970, 10, p.334. Volatile and siderophile trace element abundances, J.C.Laul et al., GCA, 1972, 36, p.329. Noble gas isotopic variations, D.C.Black, GCA, 1972, 36, p.347. Partial INAA, R.A.Schmitt et al., Meteoritics, 1972, 7, p.131. Contains carbonaceous chondrite xenoliths, L.L.Wilkening, GCA, 1973, 37, p.1985. Analysis of olivine, Fa11-35, C.Desnoyers and D.Y.Jérome, Meteoritics, 1973, 8, p.344 (abs.); see also, C.Desnoyers, GCA, 1982, 46, p.667. TEM study of track density gradients in mineral grains, R.S.Rajan, GCA, 1974, 38, p.777. Nitrogen content, B.K.Kothari and P.S.Goel, GCA, 1974, 38, p.1493. Mineralogy and petrography of isotopically dated basaltic clasts, R.F.Dymek et al., GCA, 1976, 40, p.1115. Thermal release profile of Zn, E.H.Cirlin and R.M.Housley, Meteoritics, 1978, 13, p.413 (abs.). Major, minor and trace element data, D.W.Mittlefehldt et al., GCA, 1979, 43, p.673. Ar-Ar chronology of basaltic clasts, R.S.Rajan et al., GCA, 1979, 43, p.957. Composition and origin of metal grains, R.H.Hewins, GCA, 1979, 43, p.1663. Composition of chondrule glass, A.F.Noonan et al., Meteoritics, 1980, 15, p.343 (abs.). Calculation of atmospheric ablation based on cosmic ray tracks and Ne isotopes, N.Bhandari et al., Nucl. Tracks, 1980, 4, p.213. Petrology, modal analysis and mineral chemistry, M.Fuhrman and J.J.Papike, LPSC, 1981, 12, p.309 (abs.). Major and trace element data of mafic clasts, M.R.Smith and R.A.Schmitt, J. Geophys. Res., 1982, 87 (suppl.), p.A331; see also, LPSC, 1981, 12, p.1008 (abs.). Major and REE abundances in bulk and mineral separates, A.Masuda et al., Papers 7th Symp. Ant. Met., NIPR Tokyo, 1982, p.49 (abs.). Composition of glassy clasts, J.S.Delaney, Meteoritics, 1982, 17, p.204 (abs.). Ne isotope data, M.W.Caffee et al., J. Geophys. Res., 1983, 88 (suppl.), p.B267; see also, LPSC, 1983, 14, p.86 (abs.). Modal composition, J.S.Delaney et al., J. Geophys. Res., 1984, 89 (suppl.), p.C251. Ne-21 abundance in mineral grains, M.W.Caffee et al., LPSC, 1986, 17, p.99 (abs.). Halogene concentrations, G.Dreibus et al., International Workshop on Antarctic Meteorites, LPI Tech. Rept., 1986 (No. 86-01), p.35. Rb-Sr systematics for pyroxenitic clast, K.Takahashi et al., Papers 12th Symp. Ant. Met., NIPR Tokyo, 1987, p.96 (abs.). Petrology of opx-ol porphyritic Mg-basalt clast, D.W.Mittlefehldt, LPSC, 1988, 19, p.786 (abs.). Study of solar flare tracks and neutron capture effects, R.S.Rajan and G.W.Lugmair, LPSC, 1988, 19, p.964 (abs.). Cosmogenic nitrogen, Ne and Ar data, S.V.S.Murty, LPSC, 1990, 21, p.829 (abs.). Ne and Ar isotope data and exposure ages for grain-sized mineral separates, M.N.Rao et al., LPSC, 1990, 21, p.995 (abs.); see also, LPSC, 1991, 22, p.993 (abs.). Study of chondrule-like objects, E.J.Olsen et al., Meteoritics, 1990, 25, p.187; see also, LPSC, 1988, 19, p.891 (abs.). Noble gas data, T.D.Swindle et al., GCA, 1990, 54, p.2183. Study of sedimentary textures, A.Pedroni, LPSC, 1991, 22, p.1045 (abs.). Study of precompaction irradiation effects, Ne data, A.Pedroni, LPSC, 1991, 22, p.1047 (abs.). Ne and Ar isotope abundances in plagioclase, A.Pedroni, LPSC, 1991, 22, p.1049 (abs.). Mineralogy, chemical and oxygen isotopic composition of Ti-rich eucrite clast, A.Pun et al., LPSC, 1991, 22, p.1105 (abs.). Xe isotope systematics, M.N.Rao et al., LPSC, 1991, 22, p.1113 (abs.). TL data, D.W.G.Sears et al., GCA, 1991, 55, p.3167, J.D.Batchelor and D.W.G.Sears, GCA, 1991, 55, p.3831. Cosmogenic nuclides in separated phases, exposure ages, K.Nishiizumi et al. Carbon and nitrogen isotopic composition, J.Newton et al., LPSC, 1992, 23, p.995 (abs.). Noble gases in clasts and matrix fractions, A.Pedroni, LPSC, 1992, 23, p.1047 (abs.); see also, A.Pedroni et al., LPSC, 1988, 19, p.913 (abs.). Petrograpic study of clasts, A.Pun et al., LPSC, 1992, 23, p.1117, p.1119 (abs.). Petrograpy of C chondrite clasts, A.J.Brearley, LPSC, 1993, 24, p.183 (abs.). TL data of orthopyroxene grains, A.I.Ivliev et al., LPSC, 1993, 24, p.701 (abs.). Bulk density and porosity, M.Terho et al., Studia Geophysica et Geodaedica, 1993, 37, p.65; see also, D.T.Britt and G.J.Consolmagno, MAPS, 2003, 38, p.1161. Kr and Xe isotopic composition of dark material, T.Michel and O.Eugster, Meteoritics, 1994, 29, p.593. Magnetic properties, D.W.Collinson and S.J.Morden, Earth Planet. Sci. Lett., 1994, 126, p.421. Cosmic-ray exposure ages, O.Eugster and T.Michel, GCA, 1995, 59, p.177. Mineralogy and chemical composition of carbonaceous chondrite clasts, M.E.Zolensky et al., MAPS, 1996, 31, p.518. Oxygen isotopic composition, R.N.Clayton and T.K.Mayeda, GCA, 1996, 60, p.1999. Petrology and geochemistry of pyroxene-phyric, magnesian basalt clast, D.W.Mittlefehldt and M.M.Lindstrom, GCA, 1997, 61, p.453. Proton irradiation history; Ne isotopes in feldspar separates, M.N.Rao et al., MAPS, 1997, 32, p.531. Chemical and isotopic characteristics of xenolith, K.Takahashi and A.Masuda, MAPS, 1997, 32, p.A128 (abs.). Carbon abundance and isotopic composition, M.M.Grady et al., MAPS, 1997, 32, p.863. Noble gas analysis by means of step-wise close-system acid-etching, R.H.Becker et al., MAPS, 1998, 33, p.109. Petrology, mineral chemistry, modal composition of, and noble gas isotope abundances in various lithic clasts separated from a large hand sample, A.Pun et al., MAPS, 1998, 33, p.835. VIS reflectance spectra, T.Hiroi and C.M.Pieters, Antarct. Meteorite Res., 1998, (11), p.163. Mössbauer spectroscopic study, R.P.Tripathi et al., MAPS, 2000, 35, p.201. Ne isotopic composition of plagioclase separates, R.Wieler et al., MAPS, 2000, 35, p.251; see also, MAPS, 1999, 34, p.A122 (abs.). X-ray diffraction and microprobe analysis of orthopyroxene crystals, M.C.Domenghetti et al., MAPS, 2000, 35, p.347; see also, MAPS, 1999, 34, p.A33 (abs.). Track and TL investigation of individual mineral grains, L.L.Kashkarov et al., LPSC, 1999, 30, abs. #1075. Cosmogenic radionuclides in clasts and matrix samples, M.W.Caffee and K.Nishiizumi, MAPS, 2001, 36, p.429; see also, M.W.Caffee et al., LPSC, 2000, 31, abs. #2099. Trace element abundances vs. closure temperature in orthopyroxene, M.C.Domeneghetti et al., LPSC, 2004, 35, abs. #1146.



ID#: 7174
Description: Slice
Size: 1.7 x 1.3 x 0.25 cm
Weight: 1.311 gr

US$ 650.00

 

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