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(二)遥感技术对找矿标志的研究1)对原生矿产露头的判释:矿产露头往往具有与围岩不同的一些特殊颜色,在色调上有所反映,如黑色的磁铁矿、锰矿,红色的赤铁矿、斑铜矿、铁帽,绿色的铜绿、次生铀矿、次生铬矿(铬云母),白色的大理岩、盐类矿产等等.还有一些特殊的岩脉,在航卫片上呈线性影象特征,极易识别,如含矿伟晶岩脉、石英脉、细晶岩脉等.具有特殊颜色的矿产露头,在彩色影象上多数有所显示.津巴布韦中南部沙巴尼地区,以三个已知碱金属矿区在假彩色合成卫象上所显示的天蓝色色调为依据,在卫象其它部位又发现了四个相似色调的地区,最后实地勘察证明为含矿区.1978年在我国湖南浏阳七宝山磷矿区作了航空红外探测,结果得到明显的白色调影象(似有热异常反应),其范围与母岩基本一致.
(II) Research on Prospecting Marks by Remote Sensing Technology 1) Interpretation of primary mineral outcrops: Mineral outcrops often have some special colors different from the surrounding rock and are reflected in the color tones such as black magnetite, manganese ore, Red hematite, bornite, iron cap, green patina, secondary uranium ore, secondary chrome ore (chrome mica), white marble, salt minerals, etc. There are also some special dikes, A linear image features on the aerial photos, easy to identify, such as mineralized pegmatites, quartz veins, prickly crags, etc. Mineral outcrops with special colors, most of the color image is displayed .Zimbabwe In the southern Sabani area, based on the azure hues shown on the false color composite shelters of three known alkali metal mines, four similar hues were found elsewhere on the Wehrmaq site and the last field survey proved to be containing Mining area in 1978 in Liuyang, Hunan, China Qibao Mountain phosphate mine made aerial infrared detection, the result was a clear white tone image (there may be thermal abnormal reaction), the scope of the mother rock basically the same.