| 李凤冠,程家龙,雷艳飞,王富锦,刘永泽,李枝江,段会凯.云南省腾冲市土瓜山-大平地铁矿床地质特征及控矿因素分析[J].地质找矿论丛,2025,40(1):18-26 |
| 云南省腾冲市土瓜山-大平地铁矿床地质特征及控矿因素分析 |
| Geological characteristics and ore-control factors of Tuguashan-Dapingdi Fe deposit in Tengchong city, Yunnan province |
| 投稿时间：2024-08-19 修订日期：2024-11-20 |
| DOI：10.6053/j.issn.1001-1412.2025.01.003 |
| 中文关键词: 土瓜山-大平地铁矿床 地质特征 矿床成因 控矿因素 云南省 |
| 英文关键词:Tuguashan-Dapingdi Fe Deposit geological characteristics Genesis ore-control factors Yunnan province |
| 基金项目:云南省地质勘查基金项目(编号:D202309)资助。 |
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| 中文摘要: |
| 为探讨土瓜山-大平地铁矿床成因及控制因素、指导矿区深边部找矿,本文通过野外调查、岩相学、勘查资源分析研究,认为土瓜山-大平地铁矿为与早白垩世二长花岗岩有关的接触交代矽卡岩型矿床,铁矿体主要呈透镜状、脉状产于隐伏二长花岗岩外接触带矽卡岩中,矿体向南侧伏。岩体接触带、层间破碎带、矽卡岩化等矿化蚀变是直接找矿标志,磁异常是寻找盲矿体的重要标志,Cu、Pb、Zn、Sn等元素异常是重要的间接标志。工程验证在矿区深边部取得较好的找矿效果,铁矿找矿潜力大。 |
| 英文摘要: |
| Ore-control factors of Tuguashan-Dapingdi Fe deposit is delt with in this paper to guide prospecting in surroundings and to depth of the deposit. Field investigation, petrographic study and resources analysis are carried out. The Fe deposit is a contact metasomatic skarn deposit related to Early Cretaceous monzonitic granite. Ore bodies pitch to south occurring in lense and vein in skarn in outer contact zone of the hidden monzonitic granite. Contact zone, interformational fracrural zone, skarnization and mineralization and alteration are direct prospecting marks, magnetic anomaly important mark, Cu, Pb, Zn and Sn element anomaly the indirect mark. Mo ore bodies have been hit in prospecting workings. |
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