甘肃靖远王家山地区凝灰岩锆石U-Pb年龄及地层对比意义
辛补社1, 杨华2,3, 王多云1,*, 付金华2,3, 姚泾利3,4, 罗安湘3,4, 张瑜1

SHRIMP U-Pb Age and Its Stratigraphic Significance of Tuff at the Baojishan Area, Jingyuan County, Gansu Province
Xin Bushe1, Yang Hua2,3, Wang Duoyun1*, Fu Jinhua2,3, Yao Jingli3,4, Luo Anxiang3,4, Zhang Yu1
图2 靖远王家山凝灰岩的B层露头照片 （a）远景露头照片；（b）近景露头照片, 显示典型的砖红色特征
Fig.2 The outcrop pictures of B layer tuff in Wangjiashan area of Jingyuan County （a）Long range outcrop picture; （b）Close range outcrop picture and shown typical lateritious feature