罗布泊地区钾盐矿产遥感地质应用研究  

Remote sensing geology application of potassium resource in Lop Nur area

作　　者：张佩民[1] 张建国[1] 张金良[1] 刘碧虹[1] 吴德文[1] 

机构地区：[1]有色金属矿产地质调查中心,北京100012

出　　处：《矿产勘查》2010年第2期161-164,共4页Mineral Exploration

摘　　要：以不同含盐量的盐土在可见光-近红外波段和短波红外波段反射率的差异为基础,在新疆罗布泊地区对ETM741合成图像上显示的3种不同影像区进行了遥感地质分析。认为纺锤状斑杂色影像区、蘑菇状棕黑色影像区、耳朵状浅灰带白色线条等3个影像区是罗布泊地区经历的干盐滩和卤水湖长期并存形成的地质地貌的综合显示,它们在色彩和纹形等方面显示的综合影像特征,代表了不同的钾盐及石盐的成矿区。同时,又受北东向及北北东向断裂构造控制,两条断裂构成的半封闭成盐洼地是寻找钾盐及石盐矿产的最为有利的地区。Based on different reflecting rate in the visible light - near infrared band and shortwave infrared band of the different salt content of soloncha, after analyzing remote sensing geology of three kinds of different combined ETM741 image areas, fusiform motley image district, mushroom - like black brownish area, ear - like light grey image area with white stripe in Lop Nur area, we believe that three image areas above show dry salt and brine lake coexist together for a long time in this area. Their comprehensive image characteristics in color, shape and others represent different metallogenic province of potassium and rock salt. Meanwhile, these three image areas are controlled by NE direction fault and NNE direction fault. These two faults formed semi - closed salt - forming depression which is the most favorable area for potassium and rock salt mineral products.

关 键 词：成盐洼地 耳朵状影像区 钾盐的潮解性 同心状收缩 

分 类 号：P624[天文地球—地质矿产勘探] P627[天文地球—地质学]