航空高光谱遥感区域成矿背景研究——以甘肃柳园—方山口地区为例

发布时间：2018-05-27 20:47

本文选题：航空高光谱遥感 + 成矿条件和控矿要素　；参考：《遥感学报》2017年01期

【摘要】：高光谱遥感是当前地质遥感研究的前沿和热点,国内外的相关研究集中在数据处理、矿物填图、模型构建等方面,利用航空高光谱遥感技术进行区域成矿背景的研究较少。然而,要解决好高光谱遥感找矿问题,首先必须研究区域成矿背景,特别是找矿方向和有利的找矿区段,否则构建的找矿模型将不能充分发挥作用。本文以核工业北京地质研究院国家级遥感重点实验室装备的航空高光谱成像系统在甘肃柳园—方山口地区获取的可见光-近红外(CASI),短波红外(SASI)高光谱遥感数据为数据源,利用矿物填图方法所填的区域矿物分布图,探讨了柳园—方山口地区的区域成矿条件,厘定了找矿要素,构建了区域成矿构造格架,分析了区域已知矿产的空间分布规律,探索了该区的区域找矿方向和最佳找矿地段。在此基础上,利用建立的高光谱遥感找矿预测方法,新发现了7处找矿靶区,取得了显著的地质找矿效果。该成果不仅对指导柳园—方山口地区进一步找矿有重要作用,而且提出的一套高光谱遥感技术研究区域成矿背景的思路、途径和方法,对其他地区的高光谱遥感地质应用也具有重要的借鉴价值。
[Abstract]:Hyperspectral remote sensing is the frontier and hot spot of geological remote sensing research at present. The related researches at home and abroad focus on data processing, mineral mapping, model construction and so on. The research on regional metallogenic background using aerial hyperspectral remote sensing technology is less. However, in order to solve the problem of hyperspectral remote sensing prospecting, we must first study the regional metallogenic background, especially the prospecting direction and the favorable ore prospecting section, otherwise the ore-prospecting model will not be able to play a full role. In this paper, the hyperspectral remote sensing data obtained from the aerial hyperspectral imaging system in Liuyuan-Fangshankou area of Gansu Province are used as the data source, based on the hyperspectral remote sensing data obtained by the National remote Sensing key Laboratory of the Beijing Institute of Geology of the Nuclear Industry. Based on the regional mineral distribution map by mineral mapping method, the regional metallogenic conditions in Liuyuan-Fangshankou area are discussed, the prospecting elements are determined, the framework of regional metallogenic structure is constructed, and the spatial distribution law of regional known minerals is analyzed. The regional prospecting direction and the best prospecting area in this area are explored. On this basis, using the hyperspectral remote sensing prospecting and prediction method, 7 new prospecting targets have been discovered, and remarkable geological prospecting results have been obtained. This result not only plays an important role in guiding the further prospecting in Liuyuan-Fangshankou area, but also puts forward a set of ideas, approaches and methods for studying the regional metallogenic background by hyperspectral remote sensing technology. It also has important reference value for the application of hyperspectral remote sensing geology in other areas.
【作者单位】：核工业北京地质研究院遥感信息与图像分析技术国家级重点实验室;
【基金】：中国地质调查局航空高光谱遥感矿床定位模型与预测技术研究项目(编号:121201122027)
【分类号】：P627

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