滇西南澜沧群南木岭组铁矿层特征及找矿前景  

THE FEATURE AND PROSPECTING POTENTIALITY OF NANMULING FORMATION OF LANCANG GROUP IN W YUNNAN

作　　者：邱光辉 张慧欣 张海亮 QIUGuang-hui;ZHANG Hui-xin;ZHANG Hai-liang(Shandong Geoexploration Institute,Sinochem General Bureau of Geologic Mine,Jinan 250013;Shandoog Shenke Exploration Company（Ltd）of Land and Mineral Resources,Jinan 250101)

机构地区：[1]中化地质矿山总局山东地质勘查院,山东济南250013 [2]山东深科土地矿产勘测有限公司,山东济南250101

出　　处：《云南地质》2018年第3期287-291,共5页Yunnan Geology

摘　　要：通过近期的地质勘查,在云南景洪地区元古界澜沧群南木岭组石英片岩中发现夹有多层磁铁矿,这些磁铁矿呈似层状、透镜状产出,各矿层(体)间大致平行展布,矿体产状与围岩基本一致,并与围岩成同步褶曲、错断。矿体厚度5m～7m,矿品位高达25ω%,属海相火山-沉积变质型铁矿床。加之南木岭组分布范围较广,因此云南景洪地区在南木岭组中寻找铁矿有较好的前景。±Proterozoic Lancang Group Nanmuling Formation quartz schist, which are stratoid, lenticular,in parallel roughly distribution. The occurrence of ore body is consistent basically witli that of tlie wall rock andforms fold and fault synchronously with the wall rock. The ore body thickness 5m-7m, ore grade as high as25%, belonging to the marine facies volcanic-deposit metamorjDhic type ore depomation is in wide distrilDution . Therefore, the prospecting potentiality is good in Nanmuling Formation of Jing-hong area, Yunnan.

关 键 词：沉积变质型矿床 地层控矿 找矿前景 云南景洪 

分 类 号：P618.31[天文地球—矿床学]