摘要
The available data on K-Ar dating of Yenshanian granites in Zhejiang Province have been summarized in the present paper. Based on K-Ar isochron ages of the granites, in conjunction with geological evidence, three episodes of granitic magmatic intrusion are distinguished as follows: the first episode--160--135 m.y., the second-130-110 m.y. and the third--105--65 m.y. Furthermore, the tempo-spacial distribution of K-Ar ages and their geotectonic implieations are also discussed.
The available data on K-Ar dating of Yenshanian granites in Zhejiang Province have been summarized in the present paper.Based on K-Ar isochron ages of the granites, in conjunction with geological evidence, three episodes of granitic magmatic intrusion are distinguished as follows: thefirst episode--160-135 m.y., the second--30-110 m.y. and the third--105-65m.y. Furthermore, the tempo-spacial distribution of K-Ar ages and their geotectonic implications are also discussed.
出处
《地球化学》
CAS
1984年第3期217-225,共9页
Geochimica
