宿迁—南京地区区域构造稳定性分区

Primary Research on the Regional Tectonic Stability of Suqian-Nanjing Area

利用遥感解译资料,结合研究区断裂分布特征、地震资料、地貌特征、地球物理场特征、第四纪沉积厚度及现代地壳形变等的综合研究,根据区域地震构造稳定性分区的基本原则,将研究区划分为活动区和相对活动区2个一级区,进一步可细分为4个二级带,即新沂—宿迁—泗洪活动带(Ⅰ)、扬州—仪征—南京比较活动带(Ⅱ1)、淮阴—洪泽—塔集比较活动带(Ⅱ2)、连云港—沭阳—泗阳比较稳定带(Ⅱ3),并且对各二级带的稳定性进行了评价。

Based on the study of remote sensing images,active fault distribution features,earthquake data,geomorphological features,geophysical field features,thickness of Quaternary sediment and recent crustal deformation,the regional tectonic stability of Suqian-Nanjing area is evaluated according to the main principles of stability zoning.The tectonic stability zones outlined are as follows：Xinyi-Suqian-Sihong active zone（Ⅰ）,Yangzhou-Yizheng-Nanjing less active zone（Ⅱ1）,Huaiyin-Hongze-Taji less active zone（Ⅱ2） and Lianyungang-Shuyang-Siyang more stable zone（Ⅱ3）.All of these zones have been analyzed and evaluated in a detailed way.The result is significant to the infrastructure for the economic construction and development of these areas.