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| 基金项目：广西全州县大西江长岗岭铅锌矿有限公司项目“广西全州县大西江长岗岭矿区铅锌银锡矿外围及深部详查实施方案设计编制”（271JY-2024-028） |
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| 摘要： |
| 广西长岗岭矿床位于南岭多金属成矿带西段、越城岭隆起东（北）翼，成矿地质条件优越。以往的区域地质调查工作发现了较好的找矿线索，但一直未能有较好的找矿突破。为了剖析研究区的成矿规律，从矿床地质、矿化蚀变、矿体特征及矿石特征等方面开展综合研究，归纳总结矿床成矿地质特征及找矿标志。结果表明：长岗岭矿床主要赋矿围岩为下奥陶统白洞组灰岩，控矿构造为基底NWW-SEE向断裂及加里东期岩浆侵入接触带，构造破碎带和岩体内外接触带对矿体控制明显。同时结合相邻界牌、独石岭、横溪源、紫溪源等矿床的研究成果，运用最新成矿理论与找矿方法、成矿预测，对矿床地质特征进行综合分析，总结矿床找矿标志，为该区下一步找矿突破提供可靠依据。 |
| 关键词：地质特征 找矿标志 碳酸盐岩建造 长岗岭矿床 广西越城岭 |
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| Abstract: |
| The Changgangling deposit is located in the western segment of the Nanling polymetallic metallogenic belt, on the eastern (northeastern) flank of the Yuechengling uplift. It has favorable geological conditions for mineralization. Previous regional geological surveys have identified promising prospecting clues, but no significant breakthrough has been achieved so far. In order to analyze the metallogenic regularity of the study area, this paper conducts a comprehensive study on the deposit geology, mineralization and alteration, orebody characteristics, and ore features, aiming to summarize the geological characteristics and prospecting criteria of the deposit. The results show that the main host rock of the Changgangling deposit is limestone of the Lower Ordovician Baidong Formation. The ore-controlling structures are basement NWW-SEE trending faults and Caledonian magmatic intrusive contact zones. The structural fracture zones and inner/outer contact zones of the intrusion obviously control the orebodies. Furthermore, combined with the research results from the adjacent Jiepai, Dushiling, Hengxiyuan, and Zixiyuan deposits, the latest metallogenic theories, exploration methods, and metallogenic prediction are applied to comprehensively analyze the geological characteristics of the deposit. The prospecting criteria of the deposit are summarized, providing a reliable basis for further breakthrough in exploration in this area. |
| Keywords:geological characteristic prospecting criteria carbonate rock formation Changgangling deposit Yuechengling, Guangx |
| 黄子龙,王庆东,林清梅,等.广西越城岭东侧长岗岭矿床地质特征及找矿标志[J].地质学刊,2026,50(2):158-165 |
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