| 青藏高原东北部强震带（Ms≥6）的分布特征及成带机理 |
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| 引用本文： | 康来迅.青藏高原东北部强震带（Ms≥6）的分布特征及成带机理[J].华南地震,1993,13(1):48-58. |
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| 作者姓名： | 康来迅 |
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| 作者单位： | 国家地震局兰州地震研究所 兰州730000 |
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| 摘 要： | 本文根据青藏高原东北部强震震中分布、震源深度、地壳厚度和震源机制解等资料的分析、讨论了本区构造块体运移格局、强震分布特征和成带机理等问题。指出所论区内各断裂强震带是藏北地壳浅部块体物质在重力作用下向北东方向滑移造成的,并指出海源-天水-松潘强震活动带系属地壳结构型地震带而非断裂型地震带。
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| 关 键 词： | 强震带 形成机理 青藏高原 地震 |
CHARACTERISTICS OF DISTRIBUTION AND FORMATION MECHANISM OF THE HIGH-SEISMIC ZONES IN THE NORTHEASTERN PART OF QINGHAI-XIZANG PALATEAU |
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| Kang Laixun.CHARACTERISTICS OF DISTRIBUTION AND FORMATION MECHANISM OF THE HIGH-SEISMIC ZONES IN THE NORTHEASTERN PART OF QINGHAI-XIZANG PALATEAU[J].South China Journal of Seismology,1993,13(1):48-58. |
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| Authors: | Kang Laixun |
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| Abstract: | In this paper, the main characteristics of the tectonic block movement and the formation mech-nism of the high-seismic zone (Ms 6) in the northeastern part of Qinghai-Xizang palateau are discussed from the data on the distribution of strong earthquakes, their focal depths and focal mechanism solutions and crustal thickness in the northeastern par of Qinghai-Xizang Palateau. It points out that each high-seismic zones was formed by the NE-trending slip movement of the upper crust block under the action of gravity force in North Xizang. It also indicates that the high-seismic Haiyuan-Tianshui-Song-pan zone is a seismic zone of the type of crustal structure, rather than that of the typer of faulting. |
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| Keywords: | High-seismic zone Formation mechanism Qinghai-Xizang Palateau |
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