中文摘要：

峨山他达．化念铁矿属滇中“鲁奎山式”沉积改造型铁矿，是云南重要的铁矿类型之一。矿床产于中元古界昆阳群大龙口组，主矿体赋存于大龙口组一段（Pt2d）灰黑色微晶．粉晶灰岩，同时受大龙口组下伏地层富良棚组（Pt2f）的间接制约，其岩相古地理环境为具有较深水陆棚低能弱还原的碳酸盐建造的盆地边缘相。矿体呈层状、似层状，其成因为“沉积改造型铁矿床”。在成矿地质背景和成矿地质条件分析基础上，结合物化探资料，提出他达．化念之间近17km长的范围有找矿潜力，并圈出丁皎-总果铁、火石坡、高平-乃邑等三个找矿靶区。

英文摘要：

Tada-Huanian iron deposit, Eshan County belongs to ＂Lukuishan pattern＂ with sedimentary transformation iron ore, one of significant type of iron ore in Yunnan. The deposit is located in the Middle Proterozoic Dalongkou Formation of Kunyang group. The main ore bodies occur in black microlitic and micritic limestone of the Dalongkou Formation （Pt2d） and are indirectly controlled by the Fuliangpeng Fomation （PtzD which is under Dalongkou Formation. The lithofacies palaeogeography environment is basin border facies, e.g. deep water neritic shelf environment with lower energy and weak reduction and deposited carbonate sedimentary formation. The ore bodies form is stratified and sub-stratiform. The genesis is sedimentary transformation iron ore. Base on analysis of metallogenic geological background and geological characteristics with geophysical and geochemical, potential prospecting was concluded in 17 km range between Tada and Huanian. Three iron ore prospective area of Dingjiao-Zongguo, Huoshipo and Ggaoping-Naiyi were also reported.