摘要
在以往的郯庐断裂带安徽段研究过程中,普遍认为郯庐断裂带安徽段由五河—合肥断裂、石门山断裂、池河—太湖断裂以及嘉山—庐江断裂4条主干断裂共同构成,但对于该断裂带的准确边界位置缺乏全面和系统的研究,尤其是郯庐断裂带安徽段南部大别山区域的边界问题。为此,基于Landsat8、资源3号影像与数字高程模型(digital elevation model,DEM)等多源数据,综合利用GIS空间分析和空间统计等功能,对郯庐断裂带安徽段进行遥感解译,并对解译成果进行统计分析得出郯庐断裂带安徽段较准确的边界范围。现有地质资料在一定程度上验证了该边界范围合理可靠。研究结果表明,郯庐断裂带安徽段的南北2段空间分布特征各异,北段平均走向约N23.5°E,平均宽度约25.99 km,南段平均走向约N34.9°E,平均宽度约38.38 km,整个郯庐断裂带安徽段的总体走向约N33.3°E,平均宽度约30.35 km;该断裂带在空间分布上呈现出“南短北长”、“南宽北窄”、“由南到北断层带走向逐步向北偏”的空间分布格局。研究成果可为郯庐断裂带安徽段范围内的城市规划、工程建设以及地质灾害防治等提供参考依据。
In the previous study of the Anhui segment of Tanlu fault zone,it is generally believed that the Anhui segment of Tanlu fault zone is composed of the Wuhe-Hefei fault,the Shimenshan fault,the Chihe-Taihu fault and the Jiashan-Lujiang fault.However,there is no comprehensive and systematic research on the exact boundary position of the fault zone,especially the boundary of the Dabie Mountain in the southern part of the Anhui segment of the Tanlu fault zone.In view of such a situation,based on the multi-source data such as Landsat 8 OLI,ZY-3 and DEM data,the authors comprehensively utilized GIS spatial analysis and spatial statistics to perform remote sensing interpretation of the Anhui segment of Tanlu fault zone and statistical analysis of the interpretation results.The analysis shows the more accurate boundary range of the Anhui segment of Tanlu fault zone.The existing geological data prove that the boundary range is reasonable and reliable to some extent.The study shows that the spatial distribution characteristics of the north and south sections of the Anhui segment of Tanlu fault zone are different.The average trend of the northern section is about N23.5°E,the average width is about 25.99 km,the average trend of the southern section is about N34.9°E,and the average width is about 38.38 km,the overall trend of the whole Anhui segment of Tanlu fault zone is about N33.3°E,with an average width about 30.35 km.The fault zone presents a spatial distribution pattern of“short in the north and long in the south”,“wide in the south and narrow in the north”and“the fault trend progressively moving northward from south to north”.The research results can provide an important reference for urban planning,engineering construction and geological disaster prevention within the Anhui segment of Tanlu fault zone.
作者
赵卫东
郑勇
章浩南
姜琼
卫佳佳
ZHAO Weidong;ZHENG Yong;ZHANG Haonan;JIANG Qiong;WEI Jiajia(School of Resource and Environmental Engineering,Hefei University of Technology,Hefei 230009,China;Intelligent Manufacturing Technology Institute,Hefei University of Technology,Hefei 230088,China;School of Civil and Hydraulic Engineering,Hefei University of Technology,Hefei 230009,China)
出处
《国土资源遥感》
CSCD
北大核心
2019年第4期79-87,共9页
Remote Sensing for Land & Resources
基金
国家自然科学基金资助项目“基岩裂隙水非达西流条件下非费克运移试验与模型研究”(编号:41272251)
安徽省自然科学基金资助项目“基于新型DEM的江淮平原区微地貌数字地形表达方法研究”(编号:1508085MD62)
虚拟地理环境教育部重点实验室开放基金资助项目“基于DEM的梯田地形对自然地表水文过程的扰动研究”(编号:2012VGE04)
安徽省国土资源科技项目“淮南煤田采煤塌陷的演变规律及预测预警预报技术研究”(编号:2012AHST0802)
安徽省公益性地质调查重点项目“郯庐断裂带安徽段地质环境调查评价”(编号:2015-g-26)共同资助
关键词
郯庐断裂带
遥感
多源数据
空间分布
Tanlu fault zone
remote sensing
multi-source data
spatial analysis
