| 银川隐伏断层钻孔联合剖面探测 |
| |
| 引用本文： | 雷启云,柴炽章,孟广魁,杜鹏,王银,谢晓峰,张学辉.银川隐伏断层钻孔联合剖面探测[J].地震地质,2008,30(1):250-263. |
| |
| 作者姓名： | 雷启云 柴炽章 孟广魁 杜鹏 王银 谢晓峰 张学辉 |
| |
| 作者单位： | 1. 宁夏回族自治区地震局,银川,750001
2. 甘肃省金昌市地震局,金昌,737100 |
| |
| 基金项目： | 国家发改委发改投资项目 |
| |
| 摘 要： | 为获取银川隐伏断层近地表断错、上断点埋深、最新活动时代及滑动速率等信息,在浅层地震勘探基础上,沿断层自北向南横跨主断层布施了新渠梢、满春和板桥3条钻孔联合剖面,确定了主断层在3条剖面上的准确位置,获得主断层上断点埋深分别为5·18~8·30m(新渠梢)、5·01~6·50m(满春)和10·0~13·59m(板桥)。结合测年数据分析:新渠梢剖面断层全新世活动,晚更新世末期以来滑动速率为0·14mm/a;满春剖面断层也是全新世活动,但晚更新世末期以来滑动速率为0·05mm/a;板桥剖面断层全新世不活动。综合地震勘探资料进一步分析认为,以银古路为界,目标区银川隐伏断层分南北2段:北段属全新世活动断层,且自北向南活动强度呈减弱趋势,南段属晚更新世末期活动断层;北段活动强度显著大于南段
|
| 关 键 词： | 银川隐伏断层 活断层 钻孔联合剖面 上断点 滑动速率 |
| 文章编号： | 0253-4967(2008)01-0250-14 |
| 收稿时间： | 2008-03-19 |
| 修稿时间： | 2007年10月22 |
COMPOSITE DRILLING SECTION EXPLORATION OF YINCHUAN BURIED FAULT |
| |
| LEI Qi-yun,CHAI Chi-zhang,MENG Guang-kui,DU Peng,WANG Yin,XIE Xiao-feng,ZHANG Xue-hui.COMPOSITE DRILLING SECTION EXPLORATION OF YINCHUAN BURIED FAULT[J].Seismology and Geology,2008,30(1):250-263. |
| |
| Authors: | LEI Qi-yun CHAI Chi-zhang MENG Guang-kui DU Peng WANG Yin XIE Xiao-feng ZHANG Xue-hui |
| |
| Abstract: | This paper introduces the result of exploration of the Yinchuan buried fault using the composite drilling section method. As one of the main buried faults in Yinchuan plain,the Yinchuan buried fault has restricted seriously the development of Yinchuan City for a long time due to its indistinct location and unclear activity property. So the Yinchuan buried fault was taken as one of main tasks of active fault exploration in Yinchuan City. Most of shallow seismic explorations had been done before the drilling |
| |
| Keywords: | Yinchuan buried fault active fault composite drilling section upper break point slip rate |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
