注重地质构造差异布局提升地震形变监测能力
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摘要
本文通过对我国西部地壳形变监测与地震预测实践的简要回顾,结合2001年昆仑山口西8.1级、2008年汶川8.0级大地震前区域地壳运动变形背景的已有研究结果,分析阐述了在现今地壳形变观测技术不断向高精度、高分辨和高效便捷发展的趋势下,注重地质构造活动背景和构造变形模式差异布局,提升地震形变监测能力的必要性和重要性。进而根据鄂尔多斯西南缘区域构造动力背景和变形模式,探讨了针对这一重点监视区优化监测布局、有效捕捉地形变异常动态信息的一些思路和方法。
Based on a brief summary on the practice of crustal deformation monitoring and earthquake prediction,and combined with the existing research results of regional crustal deformation before the 2001 MS8.1 Kunlun and the 2008 MS8.0 Wenchuan earthquake,this paper elaborates that it is necessary and important to focus on the geological background and tectonic deformation in different layout modes to enhance the ability of seismic deformation monitoring in considering that today the crustal deformation observation technologies continuously advance to high precision,high resolution and efficiency and convenience.Then according to the regional tectonic dynamic background and deformation mode of the southwest margin of the Ordos block,we present and discuss some ideas and methods which can optimize the layout of monitoring and capture the dynamic information of the abnormal surface changes effectively in this key monitoring area.
Based on a brief summary on the practice of crustal deformation monitoring and earthquake prediction,and combined with the existing research results of regional crustal deformation before the 2001 MS8.1 Kunlun and the 2008 MS8.0 Wenchuan earthquake,this paper elaborates that it is necessary and important to focus on the geological background and tectonic deformation in different layout modes to enhance the ability of seismic deformation monitoring in considering that today the crustal deformation observation technologies continuously advance to high precision,high resolution and efficiency and convenience.Then according to the regional tectonic dynamic background and deformation mode of the southwest margin of the Ordos block,we present and discuss some ideas and methods which can optimize the layout of monitoring and capture the dynamic information of the abnormal surface changes effectively in this key monitoring area.
引文
①张培震,南北地震带中北段的动力背景与变形模式,2011年。
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[4]孙其政,吴书贵.中国地震监测预报40年(上册)[M].北京:地震出版社,2007.
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[6]张培震,徐锡伟,闻学泽,等.2008年汶川8.0级地震发震断裂的滑动速率、复发周期和构造成因[J].地球物理学报,2008,51(4):1066-1073.
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[8]江在森,张希,祝意青,等.昆仑山口西M S 8.1地震前区域构造变形背景[J].中国科学(D辑),2003,33(sup.):161-172.
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[11]刘经南,许才军,宋成骅,等.精密全球卫星定位系统多期复测研究青藏高原现今地壳运动与应变[J].科学通报,2000,45(24):2658-2663.
[12]王琪,张培震,牛之俊,等.中国大陆现今地壳运动与构造变形[J].中国科学(D辑),2003,31(7):163-172.
[13]李延兴,杨国华,李智,等.中国大陆活动地块的运动与应变状态[J].中国科学(D辑),2001,33(增刊):65-68.
[14]丁国瑜,卢演俦.中国岩石圈动力学概论[M].北京:地震出版社,1991.142-153.
[15]张培震,邓启东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学(D辑),2003,33(增刊):12-20.
[16]郭增建,马宗晋.中国特大地震研究[M].北京:地震出版社,1988.
[1]梅世蓉.地震前兆场物理模式与前兆时空分布机制研究(三):强震孕育时地震活动与地壳形变场异常及机制[J].地震学报,1996,18(2):170-178.
[2]陈鑫连.动态大地测量学[M].北京:中国铁道出版社,1994.
[3]中国地震局预测预防司.大陆地震预报的方法和理论——中国“八五”地震预报研究进展[M].北京:地震出版社,1998.195-389.
[4]孙其政,吴书贵.中国地震监测预报40年(上册)[M].北京:地震出版社,2007.
[5]中国地震局监测预报司.强地震中期预测新技术物理基础及其应用研究[M].北京:地震出版社,2008.196-335.
[6]张培震,徐锡伟,闻学泽,等.2008年汶川8.0级地震发震断裂的滑动速率、复发周期和构造成因[J].地球物理学报,2008,51(4):1066-1073.
[7]江在森,方颖,武艳强,等.汶川8.0级地震前区域地壳运动与变形动态过程[J].地球物理学报,2009,52(2):505-518.
[8]江在森,张希,祝意青,等.昆仑山口西M S 8.1地震前区域构造变形背景[J].中国科学(D辑),2003,33(sup.):161-172.
[9]江在森,丁平,王双绪,等.中国西部大地形变监测与地震预测[M].北京:地震出版社,2001.
[10]牛之俊,马宗晋,陈鑫连,等.中国地壳运动观测网路[J].大地测量与地球动力学,2002,22(3):88-93.
[11]刘经南,许才军,宋成骅,等.精密全球卫星定位系统多期复测研究青藏高原现今地壳运动与应变[J].科学通报,2000,45(24):2658-2663.
[12]王琪,张培震,牛之俊,等.中国大陆现今地壳运动与构造变形[J].中国科学(D辑),2003,31(7):163-172.
[13]李延兴,杨国华,李智,等.中国大陆活动地块的运动与应变状态[J].中国科学(D辑),2001,33(增刊):65-68.
[14]丁国瑜,卢演俦.中国岩石圈动力学概论[M].北京:地震出版社,1991.142-153.
[15]张培震,邓启东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学(D辑),2003,33(增刊):12-20.
[16]郭增建,马宗晋.中国特大地震研究[M].北京:地震出版社,1988.
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