地质调查与研究Issue(1)：28-34,7.
云南省景洪市疆锋铁矿疆锋矿段地质特征
Jiangfeng Ore Section Geological Characteristics of the Jiangfeng Iron Deposit in Jinghong, Yunnan
摘要
Abstract
Jiangfeng magnetite ore deposit locates in south of Menglong county in Jinghong city, Yunnan prov-ince. Strata in this ore district is mainly lower Damenglong Formation, Proterozoic, and Menghai granite body is developed. Based on the analysis of engineering dxploration, we conclude that the Jiangfeng magnetite ore body belongs to a large ore deposit. The deposit can be divided into Jiangfeng and Hongshao ore sections. This paper only discusses the Jiangfeng ore section. By means of drilling, field logging, data treatment, sample analysis and regional comparison, we discover that primary magnetite ore deposit is hosted in the metamorphic series where diopside skarn developed. The specific location is the second (Ptdm1-2) and third (Ptdm1-3) layer of the lower sec-tion of Daxulong Formation. The ore bodies, most stratiform-like, are basically consistent with strata. The results of rock-mineral identification show that the deposit is closely related with the volcano sedimentary and hydrother-mal contact. Conclusion demonstrated that iron ore source layer in Early Proterozoic experienced complicated re-gional metamorphism and Hydrothermal metasomatism from acid igneous rock, and during this process iron sepa-rated out. Skarn type magnetite deposit then enriched in favorable topographic position.关键词
火山-沉积变质成因/疆锋铁矿/矽卡岩型铁矿床/云南Key words
volcano-sedimentary metamorphic type/Jiangfeng ore section/Skarn-type magnetite deposit/Yunnan分类
天文与地球科学引用本文复制引用
涂显刚,段伟,刘晓东,蒙光志,普天平,黄俊坤..云南省景洪市疆锋铁矿疆锋矿段地质特征[J].地质调查与研究,2015,(1):28-34,7.基金项目
云南省景洪市龙鑫矿业有限责任公司云南省景洪市疆锋铁矿勘探项目 （）
