中文摘要：

三中国平常的球粒状陨石，包括的吉林(H5 ) ， Boxian (LL3.8 ) 和 Lujiang (LL6 ) ，在整个球粒状陨石的样品为他们的 Re 和 O 丰富和 O 同位素的作文被学习了，分开了磁性、无磁性的部分，和小瘤。结果显示整个球粒状陨石的样品分别地在相应 H-Groups, 和 LL 组的范围的 Re 和 O 许多。从 Boxian 和 Lujiang 的磁性的部分在 high-OsIIAB 和 IIIAB 的范围以内的 Re 和 O 许多熨，而 Boxian 和 Lujiang 的无磁性的部分的那些比整个球粒状陨石的价值低。在吉林的 Re 和 O 许多小瘤在 LL 组的范围。三整个球粒状陨石的 Os/~(188 ) O 比率在在 IIAB+IIIAB 熨斗的 isochron 附近定位的平常的球粒状陨石的范围的 ~(187 )Re/~(188 ) O 和 ~(187 ) 。从 Boxian 的磁性、无磁性的部分的 ~(187 )Re/~(188 ) O 和 187Os/188Os 比率有更大的差别。Lujiang 的无磁性的部分可以包含 Re 的最近的增加，它引起 ~(187 ) 的偏差 Re/~(188 ) 从熨斗 isochron 的 O 比率。在吉林的 Re 和 O 许多小瘤是比那些低的整个球粒状陨石，但是他们的 ~(187 )Os/~(188 ) O 比率比整个球粒状陨石的高。

英文摘要：

Three Chinese ordinary chondrites, including Jilin （H5）, Boxian （LL3.8） and Lujiang （LL6）, have been studied for their Re and Os abundances and Os isotopic composition in whole-chondrite samples, separated magnetic and nonmagnetic fractions, and nodules. The results indicate that the Re and Os abundances of the whole-chondrite samples are in the ranges of corresponding H- and LL-Groups, respectively. The Re and Os abundances of magnetic fraction from Boxian and Lujiang are within the range of high-Os IIAB and IIIAB irons, whereas those of nonmagnetic fractions of Boxian and Lujiang are lower than the whole-chondrite values. The Re and Os abundances of nodules in Jilin are in the range of the LL-Group. ^187Re/^188Os and ^187Os/^188Os ratios of the three whole chondrites are in the range of ordinary chondrites which locate around the isochron of IIAB＋IIIAB irons. 187Re/1SSOs and ^187Os/^188Os ratios of the magnetic and nonmagnetic fractions from Boxian have a larger difference. The nonmagnetic fraction of Lujiang may contain a recent addition of Re, which causes deviation of the ^187Re/^188Os ratio from the irons isochron. The Re and Os abundances of nodules in Jilin are lower than those of the whole-chondrite, but their ^187Os/^188Os ratios are higher than that of the whole chondrite.