Application of nuclear analytical techniques to trace elements in Cenozoic basalt and their mantle xenoliths from Aershan area in Inner Mongolia,China  

作　　者：YUFu-Sheng HANSong HUANGYu-Ying HEWei CAOJie WANGHong-Yue 

机构地区：[1]InstituteofHighEnergyPhysics,CAS,Beijing100049 [2]InstituteofHighEnergyPhysics,CAS,Beijing100049／／KeyLaboratoryforHydrocarbonAccumulationMechanism,MinistryofEducation,UniversityofPetroleum,Beijing102249 [3]InstituteofGeologyandGeophysics,CAS,Beijing100029

出　　处：《Nuclear Science and Techniques》2005年第2期108-113,共6页核技术（英文）

基　　金：Supported by the Chinese Academy of Sciences(No.KJCXN-01).

摘　　要：Basaltic samples from different locations in Aershan area determined by instrumental neutron activation analysis (INAA) have the same distribution patterns of REE and trace elements. The similar REE contents of the same minerals without inclusions from different xenolith suggest that the mantle source region under different active volcanoes have the same composition. The REE content differences between the same minerals with and without melt inclusions selected from the same mantle xenolith indicate that the melt inclusions are rich in REE. The same patterns of trace elements of inclusions and host minerals from different xenolith analyzed by SRXRF suggest that the mantle fluid has no notable heterogeneity in Aershan area.Basaltic samples from different locations in Aershan area determined by instrumental neutron activation analysis (INAA) have the same distribution patterns of REE and trace elements. The similar REE contents of the same minerals without inclusions from different xenolith suggest that the mantle source region under different active volcanoes have the same composition. The REE content differences between the same minerals with and without melt inclusions selected from the same mantle xenolith indicate that the melt inclusions are rich in REE. The same patterns of trace elements of inclusions and host minerals from different xenolith analyzed by SRXRF suggest that the mantle fluid has no notable heterogeneity in Aershan area.

关 键 词：玄武岩 中生代 捕虏岩 中国 内蒙古自治区 阿尔山地区 地质年代学 跟踪元素 

分 类 号：P534.5[天文地球—古生物学与地层学] P588.145[天文地球—地质学]