| 天津海河隐伏断裂的晚第四纪活动特征研究 |
| |
| 引用本文： | 陈宇坤,任峰,张翠芬,邵永新.天津海河隐伏断裂的晚第四纪活动特征研究[J].地震地质,2004,26(1):111-121. |
| |
| 作者姓名： | 陈宇坤 任峰 张翠芬 邵永新 |
| |
| 作者单位： | 1. 天津市地震局,300201,天津;中国地震局地质研究所,100029,北京
2. 天津市地震局,300201,天津 |
| |
| 基金项目： | 天津市海河隐伏断裂活动性定量评价项目 (津计 2 90 )，地震科学联合基金 (6 0 0 2 0 0 3)，天津市地震局中青年基金 (0 2 4 0 12 )资助 |
| |
| 摘 要： | 在海河隐伏断裂精确定位的基础上 ,文中利用天津地区晚第四纪地层中的 4个海相地层作为标志层 ,通过地质钻孔勘探、微体古生物鉴定、地层对比及年代学测定和研究 ,获得了海河断裂的晚第四纪活动特征。研究表明 ,海河断裂在天津市区段的上断点埋深为 2 1m ,对应的最新活动时代为晚更新世晚期至全新世早、中期 ,塘沽区段的上断点埋深为 16 4m ,最新活动时代已进入了全新世早、中期 ;天津市区段在晚更新世晚期 (36 2 90aBP)以来 ,垂直运动速度为 0 2 4 8mm/a ,塘沽区段全新世(72 0 0aBP)以来的平均垂直运动速率为 0 333mm/a。这表明海河断裂塘沽区段 (东段 )的活动性明显高于市区段 (西段
|
| 关 键 词： | 隐伏断裂 海相层 地层对比 上断点 运动速率 活动特征 |
| 文章编号： | 0253-4967(2004)01-0111-11 |
| 修稿时间： | 2002年12月30 |
CHARACTERISTICS OF LATE QUATERNARY ACTIVITY OF THE HAIHE BURIED FAULT IN TIANJIN MUNICIPALITY |
| |
| CHEN Yu-kun , REN Feng ZHANG Cui-fen SHAO Yong-xin Earthquake Administration of Tianjin Municipality,Tianjin ,China Institute of Geology,China Earthquake Administration,Beijing ,China.CHARACTERISTICS OF LATE QUATERNARY ACTIVITY OF THE HAIHE BURIED FAULT IN TIANJIN MUNICIPALITY[J].Seismology and Geology,2004,26(1):111-121. |
| |
| Authors: | CHEN Yu-kun REN Feng ZHANG Cui-fen SHAO Yong-xin Earthquake Administration of Tianjin Municipality Tianjin China Institute of Geology China Earthquake Administration Beijing China |
| |
| Institution: | CHEN Yu-kun 1,2) REN Feng 1) ZHANG Cui-fen 1) SHAO Yong-xin 1)1) Earthquake Administration of Tianjin Municipality,Tianjin 300201,China 2) Institute of Geology,China Earthquake Administration,Beijing 100029,China |
| |
| Abstract: | On the basis of precise locating of the Haihe buried fault, the characteristics of late Quaternary activity of the fault was identified through drilling, identification of microfossils, stratigraphic correlation and chronological dating, by taking 4 marine strata of late Quaternary ages in Tianjin area as key horizon. The result indicates that the upper breaking point of the Haihe Fault in Tianjin downtown area is buried 21m below ground surface, and the corresponding latest movement of the fault had contin |
| |
| Keywords: | buried fault marine strata stratigraphic correlation upper breaking point movement rate characteristics of fault activity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
