活动断层分段研究
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摘要
地震发生在活动断层上,而断层活动不一定都发震,为进行地震危险性分析,确定未来可能发生地震的地段和强度。因此,把活动断层分成地震破裂段进行研究,分析断层活动在时间上、空间上的不均匀性,了解破裂段特征和分段标志,确定破坏性地震发震的构造条件是极为重要的
Tectonic earthquakes are closely related to active faults.A large active fault,generally speaking,usually produces a great earthquake.Our research results show that destructive earthquakes only occur on some special parts or segments along active faults.So the most important thing for mitigation of earthquake hazards is to recognize earthquake\|triggering segments by using the theory and method of active fault segmentation.Active faults have typical inconsistent characteristics of rupture and displacement along the faults in temporal and spatial distribution and leave some traces on surface and inner structure such as geomorphologic expression,structural feature,distribution of small earthquakes and rupture sign etc.Based on the characteristics,we may make assessment of earthquake risk in different segment along an active fault and predict the location and intensity of potential destructive earthquakes in future.
Tectonic earthquakes are closely related to active faults.A large active fault,generally speaking,usually produces a great earthquake.Our research results show that destructive earthquakes only occur on some special parts or segments along active faults.So the most important thing for mitigation of earthquake hazards is to recognize earthquake\|triggering segments by using the theory and method of active fault segmentation.Active faults have typical inconsistent characteristics of rupture and displacement along the faults in temporal and spatial distribution and leave some traces on surface and inner structure such as geomorphologic expression,structural feature,distribution of small earthquakes and rupture sign etc.Based on the characteristics,we may make assessment of earthquake risk in different segment along an active fault and predict the location and intensity of potential destructive earthquakes in future.
引文
1李树德 .工程地质环境与可持续发展Ⅲ工程地质环境综合评价 .北京大学学报 (自然科学版 ) ,1998,34( 1) :114～ 118
2朱世龙等 .活动断裂分段研究 .译文集 .北京 :地震出版社 ,1992 .2 2～ 2 3
3李树德 .活断层研究 .水文地质工程地质 .1996,2 3( 5 ) :33～ 35
4李树德 .中国东部大同火山群发育的构造地貌背景 .地理学报 ,1988,43( 3) :2 33～ 2 40
5马宗晋 .活动构造基础与工程地震 .北京 :地震出版社 ,1992
6李树德 .中国东部山西地堑系的形成机制及构造地貌、地震探讨 .北京大学学报 (自然科学版 ) ,1997,33( 4) :467～ 474
7李树德 .工程地质环境与可持续发展Ⅱ活动断层与发震的关系 .北京大学学报 (自然科学版 ) ,1996,32( 6) :719～ 72 3
8邓起东 .活动构造研究的进展 .北京 :地震出版社 ,1994
9国家地震局震害防御司 .工程地震研究 .北京 :地震出版社 ,1991
2朱世龙等 .活动断裂分段研究 .译文集 .北京 :地震出版社 ,1992 .2 2～ 2 3
3李树德 .活断层研究 .水文地质工程地质 .1996,2 3( 5 ) :33～ 35
4李树德 .中国东部大同火山群发育的构造地貌背景 .地理学报 ,1988,43( 3) :2 33～ 2 40
5马宗晋 .活动构造基础与工程地震 .北京 :地震出版社 ,1992
6李树德 .中国东部山西地堑系的形成机制及构造地貌、地震探讨 .北京大学学报 (自然科学版 ) ,1997,33( 4) :467～ 474
7李树德 .工程地质环境与可持续发展Ⅱ活动断层与发震的关系 .北京大学学报 (自然科学版 ) ,1996,32( 6) :719～ 72 3
8邓起东 .活动构造研究的进展 .北京 :地震出版社 ,1994
9国家地震局震害防御司 .工程地震研究 .北京 :地震出版社 ,1991
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