摘要
20091533 Gao Changgui(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Liu Yongsheng Distributions and Geodynamic Implications of High Field Strength Elements in Rutile from Ultrahigh Pressure Eclogites(Earth Science,ISSN1000-2383,CN42-1233/P,33(4),2008,p.487-503,8 illus.,3 tables,80 refs.)Key words:eclogite,Su-Lu orogenic beltsTrace element compositions of rutiles in eclogites from the Chinese Continental Scientific Drilling(CCSD)main hole were analyzed using LA-ICP-MS.The results indicate that Nb and Ta contents of rutiles are significantly controlled by whole rock compositions,while Zr and Hf show no obvious dependence on the whole rock compositions.Coupled with enrichments of Pb and Sr at the rim of the interstitial rutiles,Zr contents decrease from the core to the rim.
