| 万大学,陈发恩,刘建中,王泽鹏,杨成富,邵云彬,游安康,邰文星,王大福,李俊海,徐良易,谭礼金,宋威方.广西隆林县隆或地区金矿地质特征及找矿潜力探讨[J].矿产勘查,2025,16(8):1999-2009 |
| 广西隆林县隆或地区金矿地质特征及找矿潜力探讨 |
| Discussion on the geological characteristics and prospecting potential of the gold deposit in the Longhuo Area, Longlin County, Guangxi |
| 投稿时间：2025-03-26 |
| DOI：10.20008/j.kckc.202508015 |
| 中文关键词: 金矿 控矿因素 构造蚀变体 找矿预测 广西隆或地区 |
| 英文关键词: gold deposit ore-controlling factors ore-controlling by decollement structure prospecting predic-tion Longhuo area, Guangxi Province |
| 基金项目:本文受深地国家科技重大专项“滇黔桂毗连区锡锑金矿高效探测技术研发与应用”课题(2024ZD1001704)，自然资源部-科技创新团队“贵州省卡林型金矿成矿与找矿创新团队(ZRC-TD2023006)联合资助。 |
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| 中文摘要: |
| 广西隆林县隆或地区金矿产于南盘江—右江成矿带中部的北西向马雄背斜、隆或穹隆及龙艾穹隆周缘。金矿体主要赋存于背斜(穹隆)核部，北西和近东西向断裂带中偶见脉状矿体。区内由深部成矿流体沿背斜(穹隆)构造核部多组碳酸盐岩与泥质碎屑岩不整合面或岩层界面侧向运移，交代形成构造蚀变体，并富集成矿。目前区内已探明金矿体埋深均较浅，其深部找矿一直未取得突破。本文拟通过典型矿床研究，建立区域找矿预测模型，为该区深部隐伏金矿的找矿提供理论指导。预测区内深部金矿主要集中赋存在以下 4个区域:①隆或穹隆深部核部 3 km范围内 D1y/.3+4l构造蚀变体(埋深 260～500 m)；②龙艾穹隆深部核部 1 km范围内 D1y/.3+4l、C1yt/D3r构造蚀变体(埋深 700～1400 m)；③马雄背斜近核部 D1y/.3+4l、 C1-2n/D3l、P3h/C1-2n、T1l/P3h构造蚀变体；④北西向、东西向断裂深部与构造蚀变体叠加复合部位。 |
| 英文摘要: |
| The gold-antimony deposits in the Longhuo area, Longlin County, Guangxi, are located at the mar-gin of some anticlines/domes (eg., Maxiong, Longhuo and Longai) in the middle of the Nanpanjiang-Youjiang Basin.The gold orebodies are mainly hosted in the core of the anticline (dome), and minor vein-type orebodies occur in theNW and nearly EW-trend fault zones. In this area, the ore-forming fluids migrate laterally along the unconformitysurface or the interfaces between carbonate rocks and argillaceous rocks within the core of the anticline (dome)structure, and further leading to Au ores deposited in the structural alteration bodies via fluid-rock interaction.However, the identified gold mineralization bodies in this area are all relatively shallow in depth, yet significantbreakthroughs in deep exploration have not been achieved. This paper aims to establish a regional mineral predic-tion model through the study of typical deposits, thereby providing theoretical guidance for the deep-exploration ofconcealed gold mineralization. The results for this study show that deep gold-antimony exploration is mainly con-centrated in the following four areas:①The D1y/.3+4l structural alteration body within 3 km of the deep core of theLonghuo dome (buried depth of 260 -500 m); ② The D1y/.3+4ls and C1yt/D3r structural alteration bodies within 1 km of the deep core of the Long'ai dome (buried depth of 700-1400 m); ③The D1y/.3+4ls, C1-2n/D3l, P3h/C1-2n, T1l/P3h structural alteration bodies near the core of the Maxiong anticline; ④The superimposed and composite zoneswhere deep NW and EW-trend faults intersect with structural alteration bodies. |
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