| 蓝斌,赵路通.哥伦比亚武里蒂卡( Buriticá)金矿床地质特征和矿床成因[J].矿产勘查,2025,16(S1):156-163 |
| 哥伦比亚武里蒂卡( Buriticá)金矿床地质特征和矿床成因 |
| Geological characteristics and genesis of Buriticá gold deposit in Colombia |
| 投稿时间：2024-10-21 |
| DOI：10.20008/j.kckc.2025S1018 |
| 中文关键词: 武里蒂卡金矿 浅成低温热液型金矿 中硫型 低硫型 矿床成因 |
| 英文关键词: Buriticá Au deposit epithermal gold deposit intermediate-sulfidation epithermal low-sulfidation epithermal genesis of ore deposit |
| 基金项目:本文受紫金矿业集团科技立项项目矿山综合找矿预测专项(4104KY2022030001)资助。 |
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| 中文摘要: |
| 武里蒂卡( Buriticá)金矿床位于安第斯成矿带北部 Middle Cauca成矿带内，其矿床地质及地球化学特征的研究认识可对区域上同类型矿床的找矿勘查工作提供有益参考。武里蒂卡金矿产于 Buritica杂岩体及其与地层接触带中，矿体主要呈脉状、网脉状和角砾状产出，受北东—北东东向及北西向断裂控制。矿区深部发育弱钾化蚀变，浅部发育硅化蚀变，矿化主要与冰长石 -绢英岩化蚀变有关，青磐岩化蚀变主要沿矿体外围发育。矿石富 Ag和 Zn，发育典型的铁闪锌矿、磁黄铁矿、方铅矿、黝铜矿 /砷黝铜矿、辉锑矿等低硫化态金属矿物组合，脉石矿物中玉髓和方解石发育。矿体赋存地段，具 Ca-Cd-S-Cu-Au-Pb-Zn-Bi元素组合的综合异常。本文综合该矿床的地质特征，分析其具有 LS向 IS型过渡特点的浅成低温热液金矿床。研究成果可为区域上金矿床的勘查工作提供参考资料。 |
| 英文摘要: |
| The Buriticá gold deposit is located in the Middle Cauca metallogenic belt in the north of the Andesmetallogenic belt. The study of geological and geochemical characteristics of the deposit can provide useful refer.ence for the prospecting and exploration of the same type of deposits in the region. The Buritika gold mine is located in Buritica complex and its contact zone with strata. Ore bodies are mainly vein-like，net vein-like and breccia-like，which are controlled by NE-NEE and NW faults. Weak potassium alteration is developed in the deep part of the mining area，and silicification alteration is developed in the shallow part. Mineralization is mainly related to the albite-sericitization alteration，and the propylitic alteration is mainly developed along the periphery of the ore body. The ore is rich in Ag and Zn，and typical low-sulfide metal mineral combinations such as marmatite， pyrrhotite，galena，tetrahedrite/tennantite and stibnite are developed in the ore. Chalcedony and calcite are developed in gangue. The comprehensive anomaly with the element combination of Au-As-Sb-Pb-Mo is the geochemical feature of the ore body occurrence area. Based on the geological characteristics of the deposit，this epithermal gold deposit with the transition characteristics from LS to IS type is analyzed. |
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