| 遥感增强图像在变质岩地区构造特征研究和找铁矿中的应用 |
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| 引用本文： | 刘允良,杨德明,王西华,叶学忠,李宪君.遥感增强图像在变质岩地区构造特征研究和找铁矿中的应用[J].国土资源遥感,1990,1(1):20-27. |
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| 作者姓名： | 刘允良 杨德明 王西华 叶学忠 李宪君 |
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| 作者单位： | 长春地质学院
(刘允良，杨德明)，首都钢铁勘探公司
(王西华，叶学忠)，首都钢铁勘探公司(李宪君) |
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| 摘 要： | 本文以地质体的波谱特性测试资料为基础, 结合地质调查和地球物理资料, 选择不同的处理 方法进行对比和分析, 使其达到较好效果。研究中利用几种遥感图像, 如比值增强、密度分割, 对隐伏的含铁变质岩系构造和铁矿层的显示获得了好效果。比值增强图像上的色调异常显示为: 基岩区的含铁变质岩系呈深褐色、紫色条带, 第四系分布区呈不规则点状或彩色条带显示。色调 的深浅显示含铁变质岩系埋藏的深浅。通过图像增强处理, 圈定了一些远景区。
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| 关 键 词： | 遥感 图像 变质岩 地区 构造 |
THE USE ENHANCED REMOTE SENSING IMAGES IN THE STUDY OF STRUCTURAL FEATURES AND SEARCH FOR IRON DEPOSITS IN AN AREA OF METAMORPHIC ROCK |
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| Institution: | 1. Changchun College of Geology;
2. Capital Steel-Iron Exploration Corp |
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| Abstract: | This paper with the measuring of spectral property of the geological formations as bases combined with geological and geophysical data and choosing different Processing methods for contrasting and analyses, satisfactory results are obtained. Several kinds of remote sensing images such as ratio and density slicing images are considered to be more useful in reflecting the buried structure of metamorphic formations which ferrous or iron ore bearing. Accrding to color anomalies in false color composite image of ratio and in density slicing image the exposed metamorphic formations which contain iron show dark brown and violet strip, whereas the quaternary overburden show irreqular color strips or dots. The tone indicate the buried depth of metamorphic rocks which contain iron. With the enhanced image, we have found some perspective areas. |
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