高分辨率遥感影像在岩墙地质体信息提取中的应用  

Application of High-Resolution Satellite Images to Extraction of Dyke Attributes

作　　者：张自力[1] 秦其明[1] 曹宝[1] 张玉虎[2] 李百寿[1] 

机构地区：[1]北京大学遥感与地理信息系统研究所,北京100871 [2]新疆大学资源与环境科学学院,新疆乌鲁木齐830046

出　　处：《地理与地理信息科学》2007年第3期15-18,共4页Geography and Geo-Information Science

基　　金：中石油项目"塔北西部火成岩及其影响下的碳酸盐岩储层;构造建模及地球物理方法研究"(041006040003)

摘　　要：高分辨率遥感影像可明显表现地物的几何结构和纹理特征，从而使得在较小空间尺度上观察地物细节变化、进行大比例尺遥感制图成为可能。利用高分辨率QuickBird遥感影像，对新疆巴楚县麻扎尔塔格山地区的岩墙进行计算机辅助地质解译，共获得1227条岩墙。结合GIS空间分析方法获得了解译岩墙长度、走向分布等特征。结果表明：该地区76％的解译岩墙走向为NNW（135°～180°）；QuickBird能够满足1：2．5万地质调查的要求；通过地质分析综合解译结果获得了麻扎尔塔格岩体内部存在发育岩墙、岩墙形成应晚于内部的正长岩体的新认识。探讨并验证了高分辨率遥感影像在中小规模地质体解译中的可行性和有效性。The landscape features can be investigated in detail by using high-resolution satellite image,which is highly efficient and barely be interfered with bad weather and traffic conditions that perplexed traditional research methods. QuickBird image,one kind of high-resolution satellite images, was adopted to extract dykes and igneous rock attributes in Mazhartage mountain owning many grown dykes and most of these are vertical on occurrence,located in western margin of the Tarim basin and eastern Bachu county of Xinjiang in China. Based on analysis result of 1 227 dykes,dykes occurrence including strikes and length are calculated with GIS technology. From the view of geology with remote sensing research,some new conclusions procluced： most of dykes in Mazhartage mountain mainly with a striking of 135°- 180° （NNW）（76 percents in extracted dykes）. The inner of rock in Mazhartage has grown up dykes, which is different from the previous theoretical results. These dykes are younger than the inner rock. The ability to apply the results of such studies relies on the availability of remote sensing data such as QuickBird satellite imagery. It is therefore the increasing availability of high- resolution remote sensing data can make reconnaissance studies of smaller geology bodies feasible

关 键 词：高分辨率影像 遥感 岩墙 地质解译 信息提取 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置] P208[自动化与计算机技术—控制科学与工程]