多源遥感数据综合解译鄂尔多斯盆地杭锦旗地区地质构造
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摘要
利用多源遥感数据假彩色合成、融合及纹理分析等增强处理方法提取研究区构造信息,进而对研究区进行综合解译;通过分析水系、色调、纹理、地貌及岩性等特征,判断出杭锦旗地区存在一小一大、内外相套的2个环形构造,发育的北西向、北东向2组共轭断层和一组北北西向断层,与环形构造相互构架,构成研究区特殊的构造体系。经分析预测,这些构造是受周边南北向构造应力共同挤压而形成。
Remote Sensing images can reflect figure features and spreading regularities of many geological factors intuitively,and display concealed structures and movable structures effectively.This paper describes the general tectonic structure of Ordos and the tectonic setting of Hangjinqi and interprets the RS images of Hangjinqi with the aid of information extracted by such means as texture analysis and fusion.Based on characteristics of such factors as hydrographic nets,tones,textures,and geomorphic and lithologic elements,the authors consider that there exist two conjugated fractures and two circular faults as well as another set of NNW-trending fractures in Hangjinqi.These fractures interlace with each other and form a special tectonic system favorable for mineralization.These structures resulted from the compression by joint tectonic stress from south and north.
Remote Sensing images can reflect figure features and spreading regularities of many geological factors intuitively,and display concealed structures and movable structures effectively.This paper describes the general tectonic structure of Ordos and the tectonic setting of Hangjinqi and interprets the RS images of Hangjinqi with the aid of information extracted by such means as texture analysis and fusion.Based on characteristics of such factors as hydrographic nets,tones,textures,and geomorphic and lithologic elements,the authors consider that there exist two conjugated fractures and two circular faults as well as another set of NNW-trending fractures in Hangjinqi.These fractures interlace with each other and form a special tectonic system favorable for mineralization.These structures resulted from the compression by joint tectonic stress from south and north.
引文
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[2]陈淑惠.杭锦旗区块上古生界汽水分布规律研究[J].西部探矿工程,2004,(100):95-97.
[3]郑喜强,严岗.鄂尔多斯盆地北部杭锦旗地区油气圈闭类型研究[J].勘探地球物理进展,2006,29(4):279-284.
[4]谢广林.中国活动断裂遥感信息分析[M].北京:地震出版社,2000.
[5]李德敏,张哨楠.鄂尔多斯盆地杭锦旗地区二叠系P1(x-s)储层特征[J].矿物岩石,2003,23(2):94-97.
[6]李芳.二叠系下石盒子组天然气储集层特征及评价[J].西部探矿工程,2006,(8):69-71.
[7]刘飞,周文,等.鄂尔多斯盆地杭锦旗地区上古生界砂岩中储层粘土矿物特征分析[J].矿物岩石,2006,26(1):92-97.
[8]刘德长,叶发旺,张杰林.泊江海子油气环状构造的发现及其对铀成矿的重要影响[J].国土资源遥感,2007,(1):69-72.
[9]刘德长,叶发旺,赵英俊,等.基于遥感信息延伸研究的DS铀矿床区域地质背景分析[J].世界核地质科学,2006,23(4):232-237.
[10]叶发旺,刘德长,黄贤芳,等.鄂尔多斯盆地北部断裂构造的后遥感应用技术研究[J].油矿地质,2006,22(3):182-189.
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