| 罗俊峰,汪小勇,张庆华,黄艺,郭海,鲜绍军,谢选雄,袁睿.贵州正安牛心山萤石矿地质特征及找矿远景[J].贵州地质,2025,42(3):323-334 |
| 贵州正安牛心山萤石矿地质特征及找矿远景 |
| Geological Characteristics and Prospecting Prospects of the Niuxin Mountain Fluorite Deposit in Zheng’an, Guizhou |
| 投稿时间：2025-04-23 |
| DOI： |
| 中文关键词: 萤石矿 地质特征 找矿远景 正安县 |
| 英文关键词:Fluorite ore Geological characteristics Prospecting potential Zheng’an county |
| 基金项目:贵州省新一轮找矿突破战略行动项目(黔自然资函〔2023〕119号)，贵州省卡林型金矿成矿与找矿科技创新人才团队建设(黔科合平台人才-CXTD〔2021〕007)资助 |
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| 中文摘要: |
| 通过野外地质调查、物探、浅部探矿工程、钻探、分析测试等手段，对正安牛心山萤石矿进行了综合研究，取得了如下认识:1)初步查明区内萤石-重晶石矿体主要产于奥陶系下统红花园组(O1h)、桐梓组(O1t)地层NW向切层断裂中，矿体沿裂隙呈脉状或透镜状产出，走向700〖XC线.TIF,JZ〗1 000 m，深部延深10〖XC线.TIF,JZ〗80 m；2)矿石有用成分为CaF2和BaSO4，矿石以萤石型、重晶石-萤石型为主，其次为萤石-重晶石型矿石，属于中-低温热液充填交代重晶石-萤石型矿床；3)矿体赋存于奥陶系下统红花园组(O1h)及桐梓组(O1t)地层上部，找矿标志主要有地层标志、构造标志、热液蚀变、岩溶标志，地层为最直接的标志。 |
| 英文摘要: |
| Through geological surveys, geophysical prospecting, mountain engineering, drilling, and analytical tests, the comprehensible research of Niuxinshan fluorite deposit of Zheng’an was finished and the results shows: ⑴it has been preliminarily determined that the fluorite-barite ore bodies in the area mainly occur within the NW-trending cross-layer faults of the lower Ordovician Honghuayuan formation (O1h) and the Tongzi formation (O1t). The ore bodies occur as veins or lenticular shapes along fractures, with a strike length of 700 to 1,000 meters and a depth extension of 10 to 80 meters. ⑵The useful components of the ore are CaF2 and BaSO4, with the ore being primarily fluorite-type and barite-fluorite-type, followed by fluorite-barite-type ore. The deposits belong to medium-low temperature hydrothermal filling metasomatic barite-fluorite-type deposits. ⑶the ore body mainly occurring in the upper part of the lower Ordovician Honghuayuan formation (O1h) and the Tongzi Formation (O1t), the prospecting indicator mainly include strata indicator, structural indicator, hydrothermal alteration, karst indicator, the strata is most direct indicator. |
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