矽卡岩矿床接触带形态复杂度定量评估：以鄂东南矿集区铜山口矿床为例

doi:10.3799/dqkx.2026.092

矽卡岩矿床接触带形态复杂度定量评估：以鄂东南矿集区铜山口矿床为例

doi: 10.3799/dqkx.2026.092

1. 中国地质大学资源学院, 湖北武汉 430074;
2. 中国有色桂林矿产地质研究院有限公司, 广西桂林 541004;
3. 中山大学理学院, 广东深圳 518107;
4. 紫金矿业集团股份有限公司矿产地质勘查院, 福建厦门 361006

基金项目:

新一轮找矿突破战略行动科技支撑项目“长江中下游成矿带铜金锦矿床找矿模型与勘查技术”（ZKKJ202425）和中国有色集团科技专项“鄂东南矿集区钨成矿作用及铜山口矿床深部铜、钨找矿潜力研究”（2023KJZX025）。

详细信息

作者简介:
武佩佩（2000-），硕士研究生，从事于三维建模与找矿预测研究。E-mail：wuppei@126.com，ORCID：0009-0009-4101-8294

通讯作者:
刘文浩（1988-），男，副教授，从事于成矿规律与成矿预测研究工作。E-mail：cugliu@126.com

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出版历程
- 收稿日期: 2025-12-15
- 网络出版日期: 2026-05-13

Quantitative complexity assessment of contact zones of skarn deposits: A case study of the Tongshankou deposit in the southeast Hubei ore concentrated area, eastern China

1. School of Earth Resources, China University of Geosciences, Wuhan 430074, China;
2. China Nonferrous Metals (Guilin) Geology and Mining Co., Ltd., Guilin 541004, China;
3. School of Science, Sun Yat-sen University, Shenzhen 518107, China;
4. Mineral Exploration Institute, Zijin Mining Group Co., Ltd., Xiamen 361006, China

摘要

摘要: 以鄂东南矿集区铜山口矿床为例，探讨建立可便捷应用的地质体三维形态复杂度定量分析流程（目的）。铜山口是一个典型矽卡岩-斑岩复合型矿床，本文在利用隐式建模方法构建花岗闪长斑岩与碳酸盐岩接触带三维模型的基础上，应用曲率和法向量夹角余弦值两种参数定量评估接触带形态复杂度，最后基于评估结果分析接触带控矿规律和深部找矿方向（（方法）。研究表明：（1）基于大量勘查工程约束，利用隐式建模方法可构建复杂地质体的三维模型，然后提取模型表面点云数据并开展曲率与法向量夹角余弦值参数计算，可用于定量评估地质体形态复杂程度，且高斯曲率对复杂度的表征优于法向量夹角余弦值。（2）铜山口矿床的矽卡岩型矿体严格受接触带控制，接触带形态越复杂越有利于成矿，且矿区接触带形态复杂度存在空间差异性，接触带NE-NEE侧的形态复杂度明显高于SW侧（结果），因此下一步找矿勘查工作应重点关注接触带NE-NEE侧深部（结论）。
- 铜山口 /
- 矽卡岩 /
- 隐式建模 /
- 高斯曲率 /
- 法向量夹角
Abstract: Taking the Tongshankou deposit in the southeastern Hubei ore concentration area in eastern China as a case study, this paper aims to establish a convenient and applicable quantitative analysis workflow for the three-dimensional (3D) morphological complexity of geological bodies. Tongshankou is a typical skarn-porphyry composite deposit. First, a 3D model of the contact zone between granodiorite porphyry and carbonate rocks was constructed using the implicit modeling method. Then, two parameters—curvature and cosine of the normal vector angle—were applied to quantitatively assess the morphological complexity of the contact zone. Finally, based on the assessment results, the ore-controlling rules of the contact zone and directions for deep mineral exploration were analyzed. The results indicate that: (1) Constrained by extensive exploration engineering data, the implicit modeling method enables the construction of 3D models of geological bodies. Subsequent extraction of surface point cloud data from the models and calculation of curvature and cosine of the normal vector angle allow for quantitative evaluation of morphological complexity, with Gaussian curvature showing superior performance in characterizing complexity compared to the cosine of the normal vector angle. (2) The skarn-type orebodies in the Tongshankou deposit are strictly controlled by the contact zone: higher morphological complexity of the contact zone correlates with more favorable mineralization conditions. Additionally, the morphological complexity of the contact zone exhibits spatial heterogeneity within the mining area—the complexity on the NE-NEE side is significantly higher than that on the SW side. Therefore, future mineral exploration work should prioritize the deep sections of the NE-NEE side of the contact zone.
- Tongshankou /
- skarn /
- implicit modeling /
- Gaussian curvature /
- cosine of the normal vector angle

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参考文献(58)

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矽卡岩矿床接触带形态复杂度定量评估：以鄂东南矿集区铜山口矿床为例

doi: 10.3799/dqkx.2026.092

作者简介:
武佩佩（2000-），硕士研究生，从事于三维建模与找矿预测研究。E-mail：wuppei@126.com，ORCID：0009-0009-4101-8294

通讯作者:
刘文浩（1988-），男，副教授，从事于成矿规律与成矿预测研究工作。E-mail：cugliu@126.com

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Quantitative complexity assessment of contact zones of skarn deposits: A case study of the Tongshankou deposit in the southeast Hubei ore concentrated area, eastern China

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留言板

矽卡岩矿床接触带形态复杂度定量评估：以鄂东南矿集区铜山口矿床为例

doi: 10.3799/dqkx.2026.092

作者简介: 武佩佩（2000-），硕士研究生，从事于三维建模与找矿预测研究。E-mail：wuppei@126.com，ORCID：0009-0009-4101-8294

通讯作者: 刘文浩（1988-），男，副教授，从事于成矿规律与成矿预测研究工作。E-mail：cugliu@126.com

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出版历程

Quantitative complexity assessment of contact zones of skarn deposits: A case study of the Tongshankou deposit in the southeast Hubei ore concentrated area, eastern China

计量

出版历程

目录

作者简介:
武佩佩（2000-），硕士研究生，从事于三维建模与找矿预测研究。E-mail：wuppei@126.com，ORCID：0009-0009-4101-8294

通讯作者:
刘文浩（1988-），男，副教授，从事于成矿规律与成矿预测研究工作。E-mail：cugliu@126.com