Sulfide-melt inclusions in mantle xenoliths of Hannuoba,China  

作　　者：XU Jiuhua , CHU Xuelei , ZHOU Yiming , DU YuanfuUniversity of Science and Technology Beijing, Beijing 100083, China  China University of Geosciences( Beijing) , Beijing 100083, China  The Research Center of Mineral Resources Exploration , Beijing 100101, China  Institute of Geology, Chinese Academy of Sciences, Beijing 100029, China 

出　　处：《Chinese Science Bulletin》1999年第2期166-170,共5页

摘　　要：Sulfide fluid incluision study on mantle xenoliths of Hannouba has been carried out by EPMA analysis. It is indicated that the Ni/Fe ratios of metal sulfides in sulfide-melt inclusions from Hannuoba seem to be related to host rocks. These data of lherzolite （pentlandite） are obviously higher than those of olivine pyroxenite （mainly pentlandite, partly pyrrhotine）. The LRM analysis shows that sulfur （H₂S+SO₂） occupies larger proportion in gas composition of CO₂ fluid inclusions, generally more than mol 20 %. This may be related to sulfide inclusions which are frequently found.Sulfide fluid incluision study on mantle xenoliths of Hannouba has been carried out by EPMA analysis. It is indicated that the Ni/Fe ratios of metal sulfides in sulfide-melt inclusions from Hannuoba seem to be related to host rocks. These data of lherzolite (pentlandite) are obviously higher than those of olivine pyroxenite (mainly pentlandite, partly pyrrhotine). The LRM analysis shows that sulfur (H2S + SO2) occupies larger proportion in gas composition of CO2 fluid inclusions, generally more than mol 20%. This may be related to sulfide inclusions which are frequently found.

关 键 词：MANTLE XENOLITH sulfide-melt inclusion EPMA. 

分 类 号：P588.1[天文地球—岩石学]