摘要
通过含锡花岗岩全岩Rb-Sr等时线年龄研究,哀牢山-金沙江锡矿带的含锡花岗岩形成于燕山中晚期(133～80Ma);临沧-左贡锡矿带的年龄范围648～370Ma,相当于徵江期到海西期;潞西-腾冲锡矿带,属于燕山晚期到喜山期(105～51Ma)。
Rb-Sr whole rock isochron age on the tin-bearing granites for the three tin belts of Ailaoshan-Jinshajiang, Lincang-Zogang and Luxi-Tengchong in the Sanjiang region is studied in this paper, The Ailaoshan-Jinshajiang belt has an age range from 133 to 80 Ma, belonging to middle-late Yanshanian; the Lincang Zogang belt gives an age range from 648 to 370Ma, equivalent to Chengjiangian to Hereynian; the Luxi-Tengchong belt ranges from 105 to 51Ma,belonging to late Yanshanian to Himalayan.
出处
《岩石学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第1期75-81,共7页
Acta Petrologica Sinica
基金
国家自然科学基金
