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 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 of the Yinwaxia area(b) |