AGE AND SOURCE MATERIALS OF BAJIATAN AND FANSHAN-SHIMATAN INTRUSIVE ROCKS IN LUJIANG-ZONGYANG DISTRICT, ANHUI PROVINCE  

作　　者：任启江 王德滋 刘孝善 杨荣勇 孙冶东 邱检生 

机构地区：[1]Department of Geoscience, Nanjing University, Nanjing 210008, PRC

出　　处：《Chinese Science Bulletin》1991年第19期1626-1628,共3页

基　　金：Project supported by the National Natural Science Foundation of China

摘　　要：The Mesozoic volcanic rocks in Lujiang-Zongyang district can be divided into four formations, from early to late, Longmenyuan, Zhuanqiao, Shuangmiao, Fushan. Their isotopic ages are in confusion. For example, the 11 dating data of Zhuanqiao Formation are between 135 Ma and 109 Ma, belonging to K₁, whereas other 9 dating data are from 136 Ma to 178 Ma, belonging to J₂—J₃. Through the studies on Sm-Nd and Rb-Sr isotopic composition of the Bajiatan and Fanshan-Shimatan volcanic-intrusive rocks in the district, some significant data with regard to the ages and source materials of the volcanic-intrusive rocks have been acquired and published in this note.

关 键 词：VOLCANIC INTRUSIVE ROCKS ISOTOPIC composition. 

分 类 号：N[自然科学总论]