摘要
通过岩石化学和40Ar-39Ar定年研究结果:巴毛穷宗钾质碱性火山岩,涌波错和羌巴欠钙碱性火山岩,40Ar-39Ar坪年龄分别为30~26Ma、18Ma和15~14Ma,并对该区火山岩的性质和时空演化规律与青藏高原隆升的内在联系进行了探讨。
The studies of geochemistry and dating of Ar-Ar shows that the dating results are 30-26 Ma. 18 Ma and 15 - 14 Ma for the potassic alkali-rocks of Bamaoquanzong and the lime-alkali rocks of Yongbocuo and Qiangbaqian. And then the inherent relationships of the characteristic of these vocanic rocks, the rules of time and space and the upwarp of the Tibet were discussed.
出处
《地质学报》
EI
CAS
CSCD
北大核心
2006年第11期1676-1682,共7页
Acta Geologica Sinica
基金
国家自然科学重点基金项目(编号40534019)
中国科学院知识创新工程重要方向项目(编号KZCX2-SW-117)资助的成果