为了解航空高光谱遥感数据在西北地区矿产勘查领域的应用效果,查明甘肃拾金坡地区的成矿地质环境,利用航空高光谱遥感信息对该区进行找矿应用.选取拾金坡金矿床,通过对高光谱异常信息解析,总结矿床尺度的高光谱遥感异常特征,结合矿床成矿规律,构建高光谱遥感找矿模型,固定金多金属遥感找矿靶区.经野外查证,在前人未开展任何揭露工程的“原始”地段,新发现多处金及多金属矿化线索,高光谱遥感技术的“指矿、示矿”效果显著,为后期拾金坡地区高光谱遥感地质应用提供依据,也为其他成矿区带多金属矿床勘查和研究应用提供实例.
In order to learn the application effect of airborne hyperspectral remote sensing data in mineral resources exploration in northwestern regions and to investigate the metallogenic geologic environment in Shijinpo of Gansu,the paper uses airborne hyperspectral remote sensing information for prospecting in the region.Shijinpo gold deposit is analyzed using airborne hyperspectral remote sensing interpretation,the characteristics of the hyperspectral remote sensing anomaly are summarized,and based on the ore-forming regularities,airborne hyperspectral remote sensing model is constructed to delineate the prospecting targets for gold polymetallic remote sensing.It is verified by outdoor investigation that hyperspectral remote sensing has prominent effect of ore guiding and revealing on many newly discovered gold and gold polymetallic mineralization clues in previously ignored primary section,providing basis for afterwards geologic applications of hyperspectral remote sensing in Shijinpo region.The study can also be used as an practical case for exploration of polymetalic deposit in other mineralization areas.
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