摘要
宁芜地区三个辉长岩的全岩和矿物Ｒｂ－Ｓｒ等时线年龄徐祥，邢凤鸣（安徽省地质科学研究所合肥２３０００１）关键词辉长岩，Ｒｂ－Ｓｒ，等时线，宁芜地区从南京到芜湖有许多辉长岩体分布，如南京蒋庙岩体、高古山岩体、大栏杆岩体，马鞍山阳湖塘岩体，当涂姑山岩体和芜...
There are many gabbros in Nanjing-Wuhu area, but the isotopic ages of the gabbros were not dated exactly.It is not cleared that the relationship between coexisting iron-forming augite-diorite and gabbros.The authors used the method of whole-rock-mineral (apatite and biotite) Rb-Sr isochron and obtained the age of the gabbros from Jiangmiao in Naming is 125Ma, Isr= 0.7050,εNd(t)=+ 1.4; Yanghutang in Ma'anshan is 125Ma, Isr = 0.7054, εNd(t) = + 1.3; and Gushan in Dangtu is 129Ma, Isr = 0.7064 respectively.
出处
《地质科学》
CAS
CSCD
北大核心
1994年第3期309-312,共4页
Chinese Journal of Geology(Scientia Geologica Sinica)
基金
国家科技攻关项目
关键词
辉长岩
矿物
铷
锶
等时线年龄
Gabbro
Rb-Sr isochron
Nanjing-Wuhu area
