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Greetings list:
I recently purchased a 1502 gram beautiful half individual Suizhou and ordered the corresponding label from Meteoritelabels.com. When the label came in, I noticed that the TKW on the label was 260 kilos. I then checked Meteorites A-Z, which listed a TKW of 70+ kilos. The well known dealer that I purchased the stone from also had a TKW of 70 kilo's on his label. I then dropped Roman a note asking him where he got his 260 kilo TKW from. He sent the attached description from the Met Base that I have copied below. It is confusing in that it lists both 260 kilo's, then 70 kilo's, and then 260 kilo's. I surmise that the original fall find was 70 kilo's, and that it was adjusted upward at a later time after more was found. Does anyone on the list have an answer for this TKW question? Any help greatly appreciated. Thanks!
Terry
StarMeteorites
MetBase for Windows 6.0 Detailed Meteorite Record Meteorite Name: Suizhou
Country: China State/District: Hubei, Suizhou Co. Co-ordinates: 31N, 113E (approx.) Date of fall: 1986, April 15 (1852hrs) 260kg (approx.) 12 Total known weight: Number of pieces: Remarks: Classification: Type: Stone, L6 Shock Stage: S4 Weathering Stage: 0 Ordinary chondrite Mineral Olivine Fa24.6, Stddev. 0.3 Total iron: 21.2%
Analyses: Pyroxene Fs21.0, Stddev. 1.4 plagioclase: Ab82.8 Or6.6 orthopyroxene: Fs21.0 Wo1.6 kamacite: 6.85% Ni, 0.86% Co Pairings: not known Synonyms: Sui Xian
Description and references:
About 12 individuals, total weight about 70kg, were found, Met. Bull. 65, Meteoritics, 1987, 22, p.161. Classification and mineral analysis, D.Wang and A.E.Rubin, Meteoritics, 1987, 22, p.97. Noble gas data, exposure age, O.Eugster et al., LPSC, 1989, 20, p.272 (abs.). Major and trace element data, shock facies, weathering state, G.W.Kallemeyn et al., GCA, 1989, 53, p.2747. Cosmogenic radionuclide data, G.Heusser, Meteoritics, 1989, 24, p.277 (abs.). Analysis of kamacite, A.E.Rubin, GCA, 1990, 54, p.1219. Spectral reflectance, W.Lin, Papers 15th Symp. Ant. Met., NIPR Tokyo, 1990, 55-1 (abs.). Noble gas isotopic abundances, cosmic-ray exposure age, 29.8 Ma, O.Eugster et al., GCA, 1993, 57, p.1115. Shock classification, A.E.Rubin,Meteoritics, 1994, 29, p.93. Boron abundance and isotopic composition, M.Zhai and D.M.Shaw, Meteoritics, 1994, 29, p.607; see also, M.Zhai et al., GCA, 1996, 60, p.4877. Listed, coordinates given as 3138'N, 11332'E, time of fall 18:52 hrs, total known weight approx. 260kg, Y.Chen and D.Wang, Meteoritics, 1994, 29, p.886. Sm and Gd isotopic composition, H.Hidaka et al., MAPS, 1997, 32, p.A59 (abs.). Composition and structure of hollandite in shock veins, X.Xie et al., Papers 25th Symp. Ant. Met., NIPR Tokyo, 2000, p.178 (abs.). Study of high-pressure mineral assemblages in shock melt veins, X.Xie et al., Papers 25th Symp. Ant. Met., NIPR Tokyo, 2000, p.181 (abs.); see also, Papers 26th Symp. Ant. Met., NIPR Tokyo, 2001, p.156 (abs.). Repositories of specimens:
specimens: Guiyang, Acad. Sin. Inst. Geochem. 1139g: Paris, A.Carion Colln. 680g: Kankakee, Illinois, J.Schwade Colln. 491g: Payson, M.Killgore Colln. 479g: Zürich, J.Nauber Colln. 158g: Bettlach, T.Stuedi Colln. 80g: Hanau, Zeitschel Colln. 33g: Gloggnitz, Franger Colln. 24.9g: Bern, Phys. Inst. Univ. 22.1g: San Ramon, T.Toffoli Colln. 20.3g: Mainz, Max-Planck-Inst. Chemie 18.6g: Leonding, Raab Colln. 0.3g: Münster, Inst. Planet. Univ. Repositories of prepared sections:
repositories of prepared sections unknown |
