摘要
本文运用离子探针分析花岗岩中磷灰石、锆石和黑云母等矿物的同位素年龄、稀土组成、微量元素和挥发分,探讨康滇地轴云南段晋宁期花岗岩类物质来源及形成环境。结果说明,不同成因的磷灰石、锆石和黑云母具有某种指纹标型特征。花岗岩中矿物所含微量元素和挥发分之间存在相关关系。
In this paper, the genesis and environments of formation of granites are discussed. The isotopic ages, rare earth elements, trace elements, and volatile components of apatite, zircon and biotite of the Jinningian granites in the Yunnan sector of the Xikang-Yunnan axis were determined by secondary ion mass spectrometry (SIMS).
The results show some fingerprint characteristics of apatite, zircon and biotite of different origins in granites and the correlation between trace elements and volatile components therein.
The SIMS data coincide with the results of trace element geochemistry.
出处
《地质学报》
EI
CAS
CSCD
北大核心
1991年第1期27-32,共6页
Acta Geologica Sinica
基金
国家自然科学基金
