| 胡国威,王军,赵旭东,王启运,张莉.内蒙古双胜美金矿床地质特征及找矿标志[J].矿产勘查,2023,14(1):19-28 |
| 内蒙古双胜美金矿床地质特征及找矿标志 |
| Geological characteristics and prospecting criteria of Shuangshengmei gold deposit in Inner Mongolia |
| 投稿时间：2020-01-15 |
| DOI：10.20008/j.kckc.202301003 |
| 中文关键词: 找矿标志 矿床成因 地质特征 双胜美金矿 内蒙古 |
| 英文关键词: prospecting marks ore genesis geologic feature Shuangshengmei gold depost Inner Mongolia |
| 基金项目:本文受内蒙古地勘基金项目(NMKD2012-35)资助。 |
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| 中文摘要: |
| 内蒙古双胜美金矿床位于华北北缘加里东期—燕山期岩浆活动金成矿带内。在区域性深大断裂和区域岩浆热液活动的影响下,矿区内形成了对成矿有利的构造格架和岩体展布。通过野外调查及综合研究,认为本区矿体主要为石英脉型,受岩体与地层的内、外接触带形成的构造破碎带控制,均产于中元古界白云鄂博群哈拉霍疙特岩组中；围岩蚀变具有较为明显的水平分带特征,从矿体向两侧蚀变强度逐渐减弱,可分为外、中、内3条带；通过类比临区赛乌素金矿床推断其矿床成因为中低温热液型金矿床；发育于哈拉霍疙特岩组的近东西向次级羽状断裂和其充填在断裂中的“马牙状”石英脉为本区直接找矿标志；本研究对今后本区找矿工作有一定的指导意义。 |
| 英文摘要: |
| Shuangshengmei gold deposit in Inner Mongolia is located in the Caledonian Yanshanian magmatic gold metallogenic belt. The ore body mainly occurs in the Harahogete Formation of the Bayan Obo Group in the Middle Proterozoic. Under the overall influence of regional deep faults and regional magmatic hydrothermal activities, it has formed a favorable structural framework and rock mass distribution for mineralization within the mining area, and also achieved alteration and mineralization enrichment. Provide guiding opinions for further exploration and prospecting; This paper analyzes and studies its regional geological background, geological characteristics of mining area, characteristics of ore (chemical) body,mineralization and wall rock alteration, and refers to the metallogenic geological conditions of similar deposits；The metallogenic geological conditions and ore controlling factors of the deposit are summarized,the metallogenic periods are divided, and the prospecting criteria are pointed out；It is inferred that the genesis of the deposit is a medium low temperature hydrothermal gold deposit. |
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