%0 Journal Article
%T Isotopic Dating of Basalt from Gongpoquan Group in Yingmaotuo Area of the Beishan Mountain, Gansu Province, and Its Geological Significance<br>甘肃北山营毛沱地区公婆泉群中玄武岩 同位素定年及其地质意义
%A WANG Li-she
%A YANG Jian-guo
%A WANG Yu-x
%A LEI Yong-xiao
%A XIE Chun-lin
%A CAO Hong-xi
%A YANG Peng-fei
%A QI Ya-lin
%A GAO Ming
%A <br>王立社
%A 杨建国
%A 王育习
%A 雷永孝
%A 谢春林
%A 曹红霞
%A 杨鹏飞
%A 齐亚林
%A 高明
%J 地球学报
%D 2009
%I 
%X The U-Pb isotopic dating of zircon from basalt of Gongpoquan Group in Yingmaotuo area of the Beishan Mountain yields the ages of (333.1?9.8) Ma and (358?17) Ma. The former indicates that the basic rocks were formed in Early Carboniferous and the latter suggests that the Gongpoquan Group included some Devonian events. A comparative study of this discovery and fossils of Gongpoquan Group has led the authors to believe that this group is composed of Silurian, Devonian and Lower Carboniferous strata instead of merely Silurian strata. In other words, the effect of subduction and collision between the Tarim plate and the Kazakhstan plate probably continued into Lower Carboniferous.
%K Beishan Mountain
%K Gongpoquan Group
%K basalt
%K isotopic age<br>北山
%K 公婆泉群
%K 玄武岩
%K 同位素年龄
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=1DF69A47DE80569EC8F859DF61571180&aid=0708514DFA1127935C69F48D8E38E10A&yid=DE12191FBD62783C&vid=340AC2BF8E7AB4FD&iid=38B194292C032A66&sid=8C27CCA578E52082&eid=869B6F3117981EC4&journal_id=1006-3021&journal_name=地球学报&referenced_num=0&reference_num=57