基于多源遥感图像的山东省韧性剪切带找矿研究

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英文篇名：Research on Prospecting of Ductile Shear Zone in Shandong Province Based on Multi-source Remote Sensing Image 作者：凌娟 英文作者：Ling Juan;College of Tourism and Resource Environment, Zaozhuang University; 关键词：多源遥感图像 ; 山东省 ; 韧性剪切带 ; 找矿 英文关键词：multi-source remote sensing image;;Shandong province;;ductile shear zone;;prospecting 中文刊名：KJTB 英文刊名：Bulletin of Science and Technology 机构：枣庄学院旅游与资源环境学院; 出版日期：2019-04-30 出版单位：科技通报 年：2019 期：v.35;No.248 基金：山东省自然科学基金(ZR2016DB34);; 山东省高校科研计划项目(KJ2018BBH018) 语种：中文; 页：KJTB201904006 页数：4 CN：04 ISSN：33-1079/N 分类号：35-38

摘要

为实现山东省韧性剪切带找矿的准确预测,需要找到影响山东省韧性剪切带成矿的因素,提出一种基于多源遥感图像的山东省韧性剪切带找矿方法,从时间和空间两个角度对山东省韧性剪切带与金矿形成之间的关系进行分析。由于遥感卫星观测成像系统采集的研究区域地质遥感图像受到大气辐射等影响,会发生大气辐射误差和几何畸变,降低研究区域地质遥感图像质量,不利于找矿预测,因此在对研究区域地质多源遥感图像进行分析处理之前,需要采用回归方程和Contourlet变换以及互信息方法对其进行大气校正和几何校正;得到清晰多源遥感图像后,通过对研究区域已知矿床控矿要素建立相应解译标志,在多源遥感影像图中寻找未知区域的类似矿床控矿要素的异常影像,从而确定影响山东省韧性剪切带成矿因素,实现韧性剪切带找矿预测。实例分析结果表明,元素Mo、Pb、Zn、Co、Cr、Cu、Bi、As、Ni、Ag等均对山东省韧性剪切带成矿有较强的活化迁移作用,其中元素Sb是惰性元素,对成矿影响程度不高,元素Zn和Pb间接影响了研究区域韧性剪切带矿物质的富集,可以作为韧性剪切带找矿预测元素。
        In order to accurately predict the ductile shear zone in Shandong Province, it is necessary to find out the factors that affect the metallogenesis of the ductile shear zone in Shandong province. A method for prospecting ductile shear zone in Shandong Province based on multi-source remote sensing images is proposed. The relationship between ductile shear zone and gold deposit formation in Shandong Province is analyzed in terms of time and space. Because the geological remote sensing images collected by remote sensing satellite observation imaging system are affected by atmospheric radiation, the atmospheric radiation error and geometric distortion will occur, and the quality of geological remote sensing images in the study area will be reduced, which is not conducive to prospecting and prediction. Therefore, before analyzing and processing regional geological multi-source remote sensing images, it is necessary to The regression equation, Contourlet transform and mutual information method are used to correct the atmospheric and geometric parameters of the ore deposit, and the clear multi-source remote sensing images are obtained, and the corresponding interpretation marks are established for the ore-controlling elements of the known ore deposits in the studied area. In order to determine the ore-forming factors affecting ductile shear zone in Shandong Province, the ore prospecting prediction of ductile shear zone can be realized by looking for abnormal images of ore controlling elements of similar ore deposits in unknown regions in multi-source remote sensing images. The results of practical analysis show that the element Mo、Pb、Zn、Co、Cr、Cu、Bi、As、Ni、Ag and so on have strong activation and migration effects on metallogeny of ductile shear The element SB is an inert element, which has little influence on mineralization. The elements Zn and Pb indirectly affect the enrichment of minerals in the ductile shear zone, and can be used as prospecting and predicting elements in the ductile shear zone.

引文

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