%0 Journal Article
%T Ca-, Al-rich refractory inclusions and Pt-metal nuggets in the Ningqiang carbonaceous chondrite<br>
%A Yangting Lin
%A A El Goresy
%A Ziyuan Ouyang
%A <br>
%J 科学通报(英文版)
%D 1999
%I 
%X Petrography and mineral chemistry of Ca, Al-rich inclusions of Ningqiang carbonaceous chondrite are studied and the highly Re-Os fractionated Pt-metal nuggets in it is discovered. The refractory inclusions are classified into melilite-spinel-rich, and spinel-pyroxene-rich types. The former probably crystallized from melts, while the latter could be aggregates of the nebular condensates. The strong fractionation between Re and Os suggests a pro-solar origin of the Pt-metal nuggets, which probably experienced various processes of formation and evolution before being captured by the refractory inclusions as indicated by the depletions of W and Mo.
%K meteorite
%K refractory Inclusion
%K Pt-metal nuggets
%K solar nebula<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=DB5C8D689E4BA65AE8407BE54842F070&yid=B914830F5B1D1078&vid=1AE5323881A5ECDC&iid=5D311CA918CA9A03&sid=00B9006659EBD8AC&eid=00B9006659EBD8AC&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=21