%0 Journal Article
%T Osmium isotope determination on mantle-derived peridotite xenoliths from Panshishan with N-TIMS<br>
%A Weidong Sun
%A Zicheng Peng
%A Xiachen Zhi
%A Daogong Chen
%A Zhaorong Wang
%A Xinhua Zhou
%A <br>
%J 科学通报(英文版)
%D 1998
%I 
%X The187Os/188Os ratios of spinel lherzolite xenoliths from Panshishan determined with N-TIMS are lower than that of the primitive mantle, which shows depleted mantle characteristics. Their positive correlation with Al2O3/MgO suggests that the geochemical behavior of trace elements Re and Os is similar to that of Al2O3 and MgO respectively during the magmatic evolution and Re-Os isotopic system is largely immune to mantle metasomatism. A model age of 2.8–3.4 Ga obtained by187Os/188Os-Al2O3/ MgO correlation might represent the homogeneous age of the mantle lithosphere beneath the area.
%K negative thermal ionization mass spectrometry
%K osmium isotope
%K mantle-derived peridotite xenolith<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=36C1DC3584BE050BCB0DF9DAA37A2B46&yid=8CAA3A429E3EA654&vid=BE33CC7147FEFCA4&iid=DF92D298D3FF1E6E&sid=03EE8EDD44A3D4BE&eid=03EE8EDD44A3D4BE&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=9