方国庆,王中波
FANG Guo-qing; WANG Zhong-bo(Key Laboratory of Marine Geology;

• 1:同济大学教育部海洋地质重点实验室
• 2:同济大学教育部海洋地质重点实验室 上海200092
• 3:上海200092

摘要(Abstract)：

通过对1∶25万TM卫星1、4、7波段假彩色合成影像图及其东西、南北、北东及北西方向上的线性增强图,1∶3.5万和1∶5万的航空照片的解译,结合野外实地考察,得到如下结果:a.陕甘宁盆地线性断裂构造发育,可划分出东西、南北、北西、北北西、北东、北北东等6组断裂。它们在空间上呈现出近等间距性、网络格局、断续成带的特点;在活动性上具有断距小、隐伏性、强度低的特点。它们明显地控制着现代地形、地貌及水系的发育,表明陕甘宁盆地内部新构造活动较为明显。b.盆地南北遥感影像有着明显的差异,反映两者地质构造的差异性,特别是盆地南部地区存在一个基本围限了盆地南部黄土高原地区的巨大的环形影像,其边缘影像十分清晰,中间区域穿插了略呈格状的北西-北北西,北东-北北东、东西及南北向的断裂。该环形影像是盆地中南部控边构造的多期活动、复合、叠加、联合而成的综合影像,并不反映盆地南部存在整体大规模的顺时针或逆时针的环型块体转动。
Based on field work and the interpretation of the 1:250,000 satellite TM image of the Ordos Basin, the authors found: a. There are many linear faulted structures with six different strike directions in the Ordos Basin, which are buried, small in fault throw and little in strength. The faults in the same direction extend as discontinuous belts and the distance between two adjacent belts are approximately constant, and all the belts with different directions show a gridding pattern. These faults are obviously controlling the topography, physiognomy and water systems. This provides a convincing evidence of neotectonic movements in the basin. b. There are many differences between the remote sensing images of the south basin and the north basin, which indicate that the geologic structures in the two areas are very different. It is notable that there is a huge annular image with a clear edge in the south Ordos Basin. It almost covers all the area of the Loess Plateau in the basin and in which there are four series of faults with different strike direction, NW or NNW, NE or NNE, EW and SN. This annular image is a result of complicated movements of the structures in the middle and south basin which control the boundary of the basin, does not indicate that there is a huge annular plate rotating in the south of the basin.

关键词(KeyWords)： 遥感地质;共轭断裂;黄土高原;陕甘宁盆地
remote sensing geology; gridding fracture; Loess Plateau; Ordos Basin

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(40172072);; 中科院知识创新重要项目(ZSCX05—123)资助

作者(Authors): 方国庆,王中波
FANG Guo-qing; WANG Zhong-bo(Key Laboratory of Marine Geology;

参考文献(References)：

• [1]王飞跃,吴军虎,王俊峰等.应用遥感图像分析黄土高原区微地貌特征及供水水文地质意义[J].中国煤田地质,1999,11(4):41-43.
• [2]鄂尔多斯周缘断裂研究组.陕甘宁周缘活动断裂系[M].北京:地质出版社,1988.
• [3]张栓厚,赵金祥,陆爱明等.黄河中游黄土高原地质生态环境综合调查[J].中国区域地质,2000,19(4):382-389.
• [4]郭忠铭.陕甘宁盆地西缘冲断推覆构造及油气勘探[M].西安:西北大学出版社,1992.
• [5]方国庆,王多云,林锡祥,刘德良.陕甘宁盆地中部东西向构造带的确定及其天然气地质意义[J].石油与天然气地质,1999,19(3):146-151.
• [6]方国庆,刘德良.鄂尔多斯盆地中部东西向天然气聚集区带研究[J].石油实验地质,2000,22(2):195-198.
• [7]张宗祜.我国黄土高原区域地质地貌特征及现代侵蚀作用[J].地质学报,1981,20(4):308-319.
• [8]张宗祜.黄土高原第四纪地质研究[M].北京:科学出版社,1988.
• [9]钟嘉猷.实验构造地质学及其应用[M].北京:科学出版社,1998.
• [10]长庆石油地质志编写组.中国石油地质志卷十二(长庆油田)[M].北京:石油工业出版社,1992.
• [11]张文佑,钟嘉猷.中国断裂构造体系的发展[A].国际交流地质学术论文集(1)[C].北京:地质出版社,1978:87-99.
• [12]彭作林,周振杰.鄂尔多斯盆地西缘断裂构造体系[A].陕甘宁西缘地区石油地质论文集[C].呼和浩特:内蒙古人民出版社,1982:6-19.
• [13]丁国瑜.中国活动断裂[M].北京:地震出版社,1982.
• [14]马杏垣等.中国岩石圈动力学地图集[M].北京:中国地图出版社,1989.
• [15]朱照宇,丁仲礼.中国黄土高原第四纪古气候与新构造演化[M].北京:地质出版社,1994.
• [16]李裕元,石辉.新构造运动对黄土高原环境变迁的影响[J].水土保持研究,2001,8(1):123-129.

文章评论(Comment)：