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基于Leapfrog软件三维建模的矿化空间分布规律研究 ——以内蒙古乌拉特后旗三贵口硫锌多金属矿床为例
- 作者：
刘昊1，张倩惠2，3，刘光永1，彭林康3，刘文浩3，孙华山3*
- 作者单位：
- （1. 乌拉特后旗紫金矿业有限公司；2. 中化地质矿山总局浙江地质勘查院；3. 中国地质大学（武汉）资源学院）
基金项目：
- 国家自然科学基金项目（41172087）；紫金集团矿山综合找矿预测专项项目（20230260006）
详细信息：
- 作者简介：
- 刘 昊（1987—），男，工程师，从事矿山地质工作；E⁃mail：369389224@qq. com
- PDF下载
Study on spatial distribution patterns of mineralization based on 3D modeling using Leapfrog software —A case study of the Sanguikou sulfur-zinc polymetallic deposit in Urad Rear Banner, Inner Mongolia
- English Author：
Liu Hao¹, Zhang Qianhui²，³, Liu Guangyong¹, Peng Linkang³, Liu Wenhao³, Sun Huashan³
- Unit：
- （1. Zijin Mining Co., Ltd., Urad Rear Banner; 2. Zhejiang Geological Prospecting Institute of CCGMB; 3. School of Earth Resources, China University of Geosciences（Wuhan））
- 摘要
- 在线预览
- 参考文献
摘要:
采用Leapfrog软件对三贵口硫锌多金属矿床 9号矿体进行三维建模，并对主要成矿元素品位数据在矿体范围内进行了插值分析，结合矿区地质特征和野外调查进行解译，从矿体形态、成矿元素分布和元素特征比值等 3个方面对矿化空间分布规律进行分析。结果显示：9号矿体形态总体呈板状，但北东侧呈锯齿状波动显著，矿体形态及厚度变化受不对称向斜构造控制，铅锌矿化富集局部受次级背斜、向斜褶曲控制。矿区北东侧存在w（Zn）/w（Pb）值高、硫矿化富集的特征，结合坑道调查所见赋矿围岩白云石大理岩热液蚀变明显，认为矿区北东侧虽然铅锌矿化总体减弱，但不会快速尖灭，仍有一定的延伸距离。
关键词:
Leapfrog软件；三维矿体建模；矿化；分布规律；找矿方向；三贵口
Abstract:
Leapfrog software was usedto constructa 3D geological model of No. 9 orebody in the Sanguikousulfur-zinc polymetallic deposit. Grade interpolation of major ore-forming elements within the orebody was performed, and the results were interpreted in conjunction with geological characteristics and field investigations. The spatial distribution patterns of mineralization were analyzed from 3 aspects: orebody morphology, distribution of ore-forming elements, and characteristic element ratios. The results show that No.9 orebodyis generally tabular in shape, but exhibits significant serrated undulations on the northeastern side. The morphology and thickness variation of the orebody are controlled by an asymmetric syncline structure, while enrichment of lead and zinc is locally governed by secondary anticline-syncline folding. The northeastern part of the deposit is characterized by high w (Zn )/w (Pb) ratios and sulfur enrichment. Combined with tunnel observations indicating strong hydrothermal alteration of dolomitic marble host rocks in this area, it is inferred that although lead-zinc mineralization weakens overall toward the northeast, it does not pinch out rapidly and may still extend a certain distance.
Keywords:
Leapfrog software; 3D orebody modeling; mineralization; distribution pattern; prospecting direction; Sanguikou
