冷龙岭活动断裂的滑动速率研究
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中国地震局九五重点项目95-04-10-03课题资助.中国地震局兰州地震研究所论著编号:LC2000001


RESEARCH ON SLIP RATES OF THE LENGLONGLING ACTIVE FAULT ZONE
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    摘要:

    根据对冷龙岭断裂重点地段的野外调查,研究了该断裂的几何特征及滑动速率.结果表明:该断裂为一条全新世活动断层,由一组近于平行的次级断裂所组成.按总体特征可将该断裂分为3段.中更新世以来各时代的断裂平均滑动速率分别为:中更新世:2.14~4.64 mm/a,晚更新世:2.86~4.07 mm/a,全新世:3.35~4.62 mm/a.全新世以来该断裂平均垂直滑动速率为0.38 mm/a.

    Abstract:

    Based on data of field investigation in major area of Lenglongling fault zone,geometric characteristics and slip rate of the fault zone are studied.The results show that the fault zone is an active one in Holocene and consists of a group of secondary faults.According to its total characteristic,the fault zone can be divided into 3 segments.The average left lateral horizontal slip rates of the fault zone since middle Pleistocene are calculated.The horizontal slip rate in middle Pleistocene is 2.14~4.64 mm/a,the rate in Epipleistocene is 2.86~4.07 mm/a,the rate in Holocene is 3.35~4.62 mm/a.The vertical slip rate is 0.38 mm/a since Holocene.

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何文贵,刘百篪,袁道阳,杨明.冷龙岭活动断裂的滑动速率研究[J].地震工程学报,2000,22(1):91-98. HE Wen gui, LIU Bai chi, YUAN Dao yang, YANG Ming. RESEARCH ON SLIP RATES OF THE LENGLONGLING ACTIVE FAULT ZONE[J]. China Earthquake Engineering Journal,2000,22(1):91-98.

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  • 收稿日期:1999-01-29
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  • 在线发布日期: 2017-06-27