云南洱源县溪灯坪金矿地质特征及成矿模式  

GEOLOGICAL CHARACTERISTICS AND METALLOGENIC MODEL OF XIDENGPING GOLD DEPOSIT IN ERYUAN COUNTY,YUNNAN PROVINCE

作　　者：李小明 张国明 洪明春 LI Xiao-ming;ZHANG Guo-ming;HONG Ming-chun(Yunnan Yuanhao Mining Co.,Ltd,Kunming 650200)

机构地区：[1]云南源浩矿业有限公司,云南昆明650200

出　　处：《云南地质》2023年第2期197-203,共7页Yunnan Geology

摘　　要：云南洱源县溪灯坪金矿矿体主要赋存于新近系上新统三营组二段第三层(N 2 S 2-3)和第二层(N 2 S 2-2)硅质角砾岩、硅化粉砂岩、含砾砂岩、砾岩及第四系残坡积层堆积物中。呈层状、似层状、透镜状、脉状产出。矿床成因类型为喜山期浅成(富碱)构造岩浆活动初始成矿-第四纪热泉活动叠加改造形成的蚀变岩型金矿床。The ore bodies of the Xidengping gold deposit in Eryuan,Yunnan,are stratiform,stratoid,lenticular and veined,mainly hosted in siliceous breccia,silicified siltstone,gravel-bearing sandstone,conglomerate of the third(N 2 S 1)and the second layers(N 2 S 2)of the second section of the Neogene Pliocene Sanying Formation,and Quaternary eluvial deluvial sediments.The deposit is an altered rock type gold deposit in genesis,which is initially formed by the Himalayan hypabyssal(alkali rich)tectonic magmatic activity and then underwent superimposed reformation of Quaternary hot spring activity.

关 键 词：岩性+构造控矿 控矿因素 成矿模式 溪灯坪金矿 云南洱源 

分 类 号：P618.51[天文地球—矿床学]