个旧含Sn花岗岩的Sr同位素特征及找矿标志的研究   总被引：30，自引：0，他引：30  

伍勤生  许俊珍杨志 《地球化学》1984,(4):293-302

Whole-reck Rb-Sr isochron dating of Sb-bearing granites and alkaline rocks at Gejiu, Yunan Province has been conducted for their emplacement ages and initial ^87Sr/^84Sr ratios. The Sr isotopic compositions of apatites from some basic rocks in Jiasha and granite bodies have also been studied in decal, The genesis and evolution of Gejiu Snbearing granites as well as ore-search indicators are discussed on the basis of the available data in conjunction with the geochemical data on trace elements, such as Rb and Sr, Sr isotopic characteristics of the volcanie rocks, meta-diabase and host rocks, and isotopic features of ore leads.  相似文献   

个旧含Sn花岗岩的Sr、Pb同位素特征及其找矿标志   总被引：1，自引：0，他引：1  

伍勤生  许俊珍  杨志 《矿产与地质》1983,(3)

个旧锡多金属矿床是举世瞩目的特大型锡矿床之一.前人对花岗岩的岩石、矿物、地质地球化学和矿床学做了大量的工作,积累了30多个K—Ar年龄和140多个硫同位素组成的数据.为进一步确定个旧含锡花岗岩的成因、成岩时代、岩浆演化、矿床成因、磷灰石的锶同位素地球化学特征以及Sr、Pb同位素特征用作找矿标志的可能性,自1981年以来,作者与西南冶金地质勘探公司308队协作,着重开展了Rb—Sr年代学和Sr、Pb同位素地质学方面的研究,现将部分实验结果综述于后.  相似文献