Combining 3D Geological Modeling and 3D Spectral Modeling for Deep Mineral Exploration in the Zhaoxian Gold Deposit, Shandong Province, China
Combining 3D Geological Modeling and 3D Spectral Modeling for Deep Mineral Exploration in the Zhaoxian Gold Deposit, Shandong Province, China
复制标题
结合 3D 地质模型和 3D 光谱模型进行中国山东省赵县金矿深部矿产勘查
DOI：
10.3390/min12101272
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发表时间：
2022
期刊：
影响因子：
2.5
通讯作者：
Zhenliang Yang
中科院分区：
文献类型：
--
作者：
Bin Li;Yongming Peng;Xianyong Zhao;Xiaoning Liu;Gongwen Wang;Huiwei Jiang;Hao Wang;Zhenliang Yang
胶东半岛是中国主要的大型金矿床，是中国最早的黄金产区；多源、多尺度地球科学数据集可用。该地区是中国最大的钻探矿产勘探区。利用三维建模、地质、矿体及蚀变数据，对胶东半岛西北部昭县金矿进行了成矿信息提取与综合，并对找矿目标进行了分析。方法和结果总结如下：区域焦家断裂是金矿的关键找矿标志。三维深部环境中的压扭特征和凹凸剖面带是赵县金矿三维地质与矿体建模找矿的主要标志。利用钻孔资料（> ~ 1000 m）进行高光谱精细测量、解释和数据挖掘，分析了赵县金矿床矿体、成矿断裂和蚀变带岩石的矢量和变化趋势。利用短波红外Pos2200值和蚀变带伊利石结晶度可以识别三维深部金矿化和潜在找矿靶区。该研究方法可在全球其他深部矿产勘查中推广应用。
The Jiaodong Peninsula hosts the main large gold deposits and was the first gold production area in China; multisource and multiscale geoscience datasets are available. The area is the biggest drilling mineral-exploration zone in China. This study used three-dimensional (3D) modeling, geology, and ore body and alteration datasets to extract and synthesize mineralization information and analyze the exploration targeting in the Zhaoxian gold deposit in the northwestern Jiaodong Peninsula. The methodology and results are summarized as follows: The regional Jiaojia fault is the key exploration criterion of the gold deposit. The compression torsion characteristics and concave–convex section zones in the 3D deep environment are the main indicators of mineral exploration using 3D geological and ore-body modeling in the Zhaoxian gold deposit. The hyperspectral detailed measurement, interpretation, and data mining used drill-hole data (>1000 m) to analyze the vectors and trends of the ore body and ore-forming fault and the alteration-zone rocks in the Zhaoxian gold deposit. The short-wave infrared Pos2200 values and illite crystallinity in the alteration zone can be used to identify 3D deep gold mineralization and potential targets for mineral exploration. This research methodology can be globally used for other deep mineral explorations.