必须声明标量变量 "@Script_ID"。 活断层的术语、研究进展及问题思考-《地球科学与环境学报》
|本期目录/Table of Contents|

[1]吴中海.活断层的术语、研究进展及问题思考[J].地球科学与环境学报,2018,40(06):706-726.
 WU Zhong-hai.Active Faults: Terminology, Research Advances, and Thinking on Some Problems[J].Journal of Earth Sciences and Environment,2018,40(06):706-726.
点击复制

活断层的术语、研究进展及问题思考(PDF)
分享到:

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第40卷
期数:
2018年第06期
页码:
706-726
栏目:
基础地质与矿产地质
出版日期:
2018-11-15

文章信息/Info

Title:
Active Faults: Terminology, Research Advances, and Thinking on Some Problems
文章编号:
1672-6561(2018)06-0706-21
作者:
吴中海
中国地质科学院地质力学研究所国土资源部新构造运动与地质灾害重点实验室,北京 100081
Author(s):
WU Zhong-hai
Key Laboratory of Neotectonic Movement and Geohazard of Ministry of Land and Resources, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
关键词:
活断层新构造活动构造地震地质地震危险性评价地质灾害构造体系
Keywords:
active fault neotectonics active tectonics seismogeology earthquake hazard assessment geohazard tectonic system
分类号:
P315;P54
DOI:
-
文献标志码:
A
摘要:
新构造与活动构造都是研究地球最新的构造变形和构造地貌演化过程,也是地震地质工作的主要内容与基础,而活断层是其中最重要的构造表现形式和研究对象。活断层研究成果经常是地震预测与预报、城乡防震减灾和重要工程规划设计如何有效规避活断层地质灾害的重要依据。从新构造角度认识和研究活断层的时间尺度与特定区域的地球动力学背景密切相关,更关注从十万年到百万年尺度的地质构造过程,强调的是“过去与现在”的断裂活动性。而活动构造最关注距今100~150 ka以来的地质-地貌过程,更强调认识和评价“现在与未来”的断裂活动性,因此,它是地震危险性评价的重点。近年来的活断层研究领域的主要进展表明,第四纪年代学、空对地观测和地理信息系统等技术方法的快速发展及应用,极大地提高了定量化研究新构造演化、构造地貌、断裂活动性和古地震等的水平和精度,也促进了活断层数据的数字化与共享程度,并进一步提升了地震危险性评价的可靠性与准确性。但对于中国这样活断层发育密度高和活动构造体系极为复杂的区域,针对地震危险性评价的新构造与活动构造方面的基础性工作仍需要进一步加强,尤其是借助高精度遥感技术和新构造定年方法等,开展快速有效的区域性活断层普查,提升活断层调查研究的规范化、精细化和定量化程度,并重视活动构造体系的综合研究,从而为预防地震地质灾害夯实地质基础。同时,还需要注意区分断层活动性与危险性的关系,重视稳定大陆区和低活动速率断层的强震危险性问题。
Abstract:
Neotectonics and active tectonics are sub-disciplines of tectonics that study the process of recent tectonic deformation and tectonic geomorphic evolution on the earth. They are also the main content and foundation of seismic geological work, and active faults are the most important structural manifestation and research object. The research results of active faults are often the important basis for earthquake forecast and prediction, urban and rural earthquake prevention and disaster reduction and important engineering planning and design to effectively avoid the geological disasters of active faults. Understanding and studying the time scale of active faults is closely related to the geodynamic background of specific areas from the perspective of neotectonics. It focuses more on geological structural processes from 100 ka to 1 000 ka, emphasizing past and present fault activities. The active tectonics pays the most attention to the geological and geomorphological processes since 100-150 ka ago, and emphasizes the understanding and evaluation of current and future fault activities, so it is the focus of seismic risk assessment. Recent advances in active fault research have shown that the rapid development and application of quaternary chronology, open space observation and geographic information systems greatly improve the level and accuracy of quantitative research on neotectonic evolution, tectonic geomorphology, fault activity and paleoearthquake, and promote the digitization and sharing of active fault data, and further improve the reliability and accuracy of seismic risk assessment. However, in the regions with high density of active faults and complex active tectonic systems, the basic work of neotectonics and active tectonics for seismic hazard assessment needs to be further strengthened. Especially with the help of high-precision remote sensing technology and neotectonics dating method, a rapid and effective regional active fault survey can be producted, and the degree of standardization and quantification of the investigation of active faults can be improved, and the great importance to the comprehensive research of active tectonic systems can be attached, so as to prevent earthquake geological disaster to lay solid geological foundation. At the same time, it is necessary to distinguish the relationship between fault activity and risk, and pay attention to the problem of strong earthquake risk of stable continental regions and the faults with low slip rate.

参考文献/References:

-

相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2018-06-15;修回日期:2018-09-20
基金项目:国家自然科学基金项目(41571013);中国地质调查局地质调查项目(12120114002101,DD20160268)
作者简介:吴中海(1974-),男,北京市人,研究员,博士研究生导师,理学博士,E-mail:wuzhonghai@geomech.ac.cn。
更新日期/Last Update: 2018-12-06