| 谭红霞,苏永锋,彭江涛,叶萍,谭和勇.津巴布韦奎奎地区Dumuka金锑矿床地质特征及成因[J].矿产勘查,2026,17(S1):182-190 |
| 津巴布韦奎奎地区Dumuka金锑矿床地质特征及成因 |
| Geological characteristics and genesis of the Dumuka gold-antimony deposit in the Kwekwe Area， Zimbabwe |
| 投稿时间：2025-12-16 修订日期：2026-03-17 |
| DOI：10.20008/j.kckc.2026S1021 |
| 中文关键词: 地质特征 控矿断裂 Dumuka金锑矿床 津巴布韦奎奎 |
| 英文关键词: geological characteristics control-dominating faults Dumuka gold-antimony deposit Kwekwe, Zimbabwe |
| 基金项目:本文受河南省地质研究院2023年度地质科技攻关项目（2023-903-XM007-KT03）资助。 |
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| 中文摘要: |
| Dumuka金锑矿床位于津巴布韦奎奎西侧，矿体主要赋存于新太古界塞巴奎超群断裂带内，金锑矿化与硅化、云母化具有相关性。通过对矿区构造痕迹与区域运动学解析，矿区内断裂是金锑矿化的关键控矿因素，新太古代碰撞造山晚/后期环境的控矿断裂具有自南向北逆冲的运动学属性，它控制了金锑矿化带空间展布和形态，活动时代与金锑矿化具有关联性。太古宙晚期石英闪长岩侵入携带的热液活化了赛巴奎超群地层中金、锑等矿物元素，含矿热液在断裂带中由于物化条件改变最终导致金锑矿物沉淀、富集成矿。笔者根据Dumuka金锑矿床的地质特征，建立了津巴布韦金锑矿的成矿模式，为该地区扩大找矿空间提供了理论依据。 |
| 英文摘要: |
| Dumuka gold-antimony deposit is located on the west side of Kwekwe in Zimbabwe. The ore body is mainly hosted in the Late Archean Sebakwe Supergroup fault zone. The gold-antimony mineralization is related to silicification and mica alteration. Through the analysis of the structural traces in the mining area and the regional kinematics， the faults in the mining area are the key controlling factors for gold-antimony mineralization. The kinematic attribute of the ore-controlling faults in the Late Archean collisional orogeny environment is a south-to-north thrust， which controls the spatial distribution and morphology of the gold-antimony mineralization zone. The activity period is related to gold-antimony mineralization. The Late Archean quartz diorite intrusion carried hydrothermal fluids that activated gold， antimony and other mineral elements in the Sebakwe Supergroup strata. The ore-bearing hydrothermal fluids precipitated and concentrated gold-antimony minerals in the fault zone due to changes in physical and chemical conditions. Based on the geological characteristics of the Dumuka gold-antimony deposit， the author established a gold-antimony mineralization model for Zimbabwe， providing a theoretical basis for expanding the exploration space in this region. |
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