Discontinuous precipitation reaction in the metal of Richardton chondrite / Axon H.J., Grokhovsky V.J. // Nature. - 1982. - V. 296, l. 5860. - P. 835-837.

ISSN:

00280836

Type:

Article

Abstract:

A metallographic and microprobe study was conducted on the H5 chondritic meteorite Richardton, using material that was free of terrestrial corrosion and ablation heating effects. Our observations indicate that initially well annealed and slowly cooled metal experienced an incomplete episode of discontinuous precipitation in the temperature range 350-400 °C, perhaps after mild deformation at some of the metal-silicate interfaces. There were no indications of externally imposed deformation after the 350 °C episode. The mechanism of discontinuous precipitation rather than plane interface growth has implications for the rate of formation of the metallographic structures, and the apparent temperature of this final heat treatment has implications for proposed reheating events identified by isotopic measurements of the silicate minerals that accompany the metal in this meteorite. © 1982 Nature Publishing Group.

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нет данных

DOI:

10.1038/296835a0

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-0019912515&doi=10.1038%2f296835a0&partnerID=40&md5=61d7258d436dcbab38ebe72626bf2c0e

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-0019912515&doi=10.1038%2f296835a0&partnerID=40&md5=61d7258d436dcbab38ebe72626bf2c0e
Affiliations	Metallurgy Department, University of Manchester, Grosvenor Street, Manchester M1 7HS, United Kingdom
References	Hey, M.H., (1966) Catalogue of Meteorites, , British Museum, London; Hey, M.H., (1966) Catalogue of Meteorites, , British Museum, London; Van Schmus, W., Wood, R.J.A., (1967) Geochim. Cosmochim. Acta, 31, p. 747; Dodd, R.T., (1969) Geochim. Cosmochim. Acta, 33, p. 161; Affiatalab, F., Wasson, J., (1980) Geochim. Cosmochim. Acta, 44, p. 431; Sears, D.W., Axon, H., (1976) J. Mature, 260, p. 34; Turner, G., Enright, M.C., Cadogan, P.H., Evensen, N.M., Carter, S.R., Hamilton, P.J., O’Nions, R.K., Ridley, W.I., (1978) Proc. 9Th Lunar Planet. Sei. Conf, 989-42, p. 223; Bevan, A.W.R., Axon, H.J., (1980) Earth Planet. Sei. Lett., 47, p. 353; Gust, W., (1979) Phase Transformations Ser. 3, No. 11, Ch. 1, 11, , The Institution of Metallurgists, London; Williams, D.B., Butler, E., (1981) P. Int. Metal. Rev, 3, p. 153; Hutchison, R., Bevan, A.W.R., Easton, A.J., Agrell, S.O., (1981) Proc. R. Soc., 374, p. 159; Romig, A.D., Goldstein, J.I., (1981) Geochim. Cosmochim. Acta, 45, p. 1187; Brentnall, W.D., Axon, H.J., (1962) Iron Steel Inst, 200, p. 947; Buchwald, V.F., (1975) Handbook of Iron Meteorites Vol. 1, 131-136, , University of California Press, Berkeley
Correspondence Address	Axon, H.J.; Metallurgy Department, University of Manchester, Grosvenor Street, Manchester M1 7HS, United Kingdom
Language of Original Document	English
Source	Scopus