Computer Science
Scientific paper
Jul 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982chjss...2..194o&link_type=abstract
Chinese Journal of Space Sciences, vol. 2, July 1982, p. 194-204. In Chinese, with abstract in English.
Computer Science
Chemical Composition, Chemical Evolution, Chemical Fractionation, Condensation, Meteoritic Composition, Minerals, Cosmic Rays, Nuclides, Olivine, Pyroxenes
Scientific paper
The formation and evolution of the Jilin meteorite are discussed in terms of the data from a multidisciplinary integrated study. The subjects considered include: the fractionation and condensation of the solar nebular, based on the condensation conglomeration age and mineral association of the meteorite; the thermometamorphic history of the Jilin parent body, based on data on the loss of rare gases, the chemical composition of the whole rock, the self-purification of REE, and the compositional stability of olivine and orthopyroxene; the cooling process of the parent body, using the Ni content and taenite range as well as the retention of argon and fission tracks in the minerals. The breakup of the parent body and its cosmic ray irradiatio history are also considered. Cosmogenic nuclide measurements are used to propose a two-stage model of the meteorite irradiation history. The falling process of the meteorite is also discussed.
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