从航卫片解译广西某些小岩体及其节理

AN ANALYSIS OF SOME SMALL ROCK MASSES AND THEIR JOINTS IN GUANGXI BASED ON VISUAL INTERPRETATION OF AERIAL AND SATELLITE IMAGES

摘要: 广西侵入岩发育、活动频繁,主要分布于桂北、桂东及桂东南等地,大多为酸性岩。时代有四堡、雪峰、加里东、华力西、印支、燕山及喜山等七期,其中,加里东、华力西、印支及燕山期是本区侵入岩主要形成时期,也是小岩体活动较多的时期。这些小岩体在遥感象片上标志明显。本文选择典型航、卫片为实例进行解译。由于解译条件所限,采用手段是目视判读,主要的解译标志为影象的色调、形状、纹形、结构等。解译的内容主要是圈定小岩体的边界线、色调及形状（图形）,其次是探讨隐伏小岩体所反映的地质信息与内生矿产的关系。

Abstract: Through visual interpretation of remote-sensing images and practicar investigations, the interpretative indications and image features of some small rocks masses and their joints are analysed and studied in the paper. Besides, the relationship of these small rock masses and buried rock masses to mineral resources is also analysed, which may serve mineral prospecting.