| 关中活断层和地裂缝的年代学研究 |
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| 引用本文： | 孙建中,张景昭,鼓建兵,张骏,李秉成.关中活断层和地裂缝的年代学研究[J].地质力学学报,1998,4(4):88-97. |
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| 作者姓名： | 孙建中 张景昭 鼓建兵 张骏 李秉成 |
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| 作者单位： | [1]西安工程学院 [2]中国科学院黄土与第四纪地质国家重点实验室 |
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| 基金项目： | 中国科学院黄土与第四纪地质国家重点实验室资助的课题 |
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| 摘 要： | 取该区活动断裂中的断层泥，并首次在几个断层面附近的劈理化黄土中取样测出热释光年龄。１２个断层热释光年龄数据在２０－２４０ｋａＢＰ之间变化，证实中更新世晚期和晚更新世期间断层曾有一次活动，为本区断层的活动性提供了证据。本研究成果也为西安地裂缝的活断层与人工抽水双重成因提供了证据。
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| 关 键 词： | 关中 活断层 地裂缝 热释光测年 年代学 |
| 收稿时间： | 1998/2/13 0:00:00 |
CHRONOLOGICAL STUDIES ON ACTIVE FAULTS AND GROUND FISSURES IN GUANZHONG AREA, SHAANXI PROVINCE,CHINA |
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| SUN Jianzhong,ZHANG Jingzhao,PENG Jianbing,ZHANG Jun and LI Bingcheng.CHRONOLOGICAL STUDIES ON ACTIVE FAULTS AND GROUND FISSURES IN GUANZHONG AREA, SHAANXI PROVINCE,CHINA[J].Journal of Geomechanics,1998,4(4):88-97. |
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| Authors: | SUN Jianzhong ZHANG Jingzhao PENG Jianbing ZHANG Jun and LI Bingcheng |
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| Institution: | Xi''an Engineering University, Xi''an 710054,Xi''an Laboratory of Loess and Quaternary Geology, Academia Sinica, Xi''an 710054,Xi''an Engineering University, Xi''an 710054,Xi''an Engineering University, Xi''an 710054 and Xi''an Engineering University, Xi''an 710054 |
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| Abstract: | 12 Thermoluminecence datings of the fault gouge and the adjoining cleaved loess of the area gives an age of 20-240 ka B P.It shows that the faults have been active during the late middle pleistocene to Late Pleistocene.Geomorphological and geological evidences are provided to show the alternation of rapid movement and show creep of the faults.The ground fissures in Xi''an City are in fact active faults,having been triggered to revive by pumping water from the confined aquifer. |
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| Keywords: | active fault ground fissure thermohuminecence dating Guanzhong |
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