甘肃北山音凹峡地区水系沉积物测量地球化学特征及找矿靶区优选
陈海云,龚振中,杨镇熙,任长旭,周兆明

Geochemical Characteristics of Stream Sediment Survey and Prospecting Target Selection in the Yinwaxia Area,Beishan,Gansu Province
Haiyun CHEN,Zhenzhong GONG,Zhenxi YANG,Changxu REN,Zhaoming ZHOU
图1 北山南带岩石构造图(a)(修改自陈世明等,2022)及音凹峡地区地质简图(b)
1.第四系与新近系;2.二叠系方山口组;3.石炭系红柳园组;4.长城系铅炉子沟群;5.敦煌岩群B岩组;6.晚二叠世花岗岩;7.晚二叠世辉长岩;8.晚石炭世二长花岗岩;9.中元古代二长花岗岩;10.英安岩、流纹岩和英安质角砾凝灰岩;11.研究区范围
Fig.1 Rock structure map of the southern Beishan belt(a)(modified after Chen et al.,2022) and geological sketch map
of the Yinwaxia area(b)