气候变化领域集成服务门户(CCPortal): Evidence of nonlinear elasticity of the crust from the Mw7.6 Manyi (Tibet) earthquake

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DOI	10.1126/science.286.5438.272
	Evidence of nonlinear elasticity of the crust from the Mw7.6 Manyi (Tibet) earthquake
	Peltzer G.; Crampé F.; King G.
发表日期	1999
ISSN	0036-8075
起始页码	272
结束页码	276
卷号	286 期号:5438
英文摘要	Satellite synthetic aperture radar (SAR) interferometry shows that the magnitude 7.6 Manyi earthquake of 8 November 1997 produced a 170-kilometer- long surface break with up to 7 meters of left-lateral slip, reactivating a N76 °E quaternary fault in western Tibet. The radar interferometric map reveals asymmetric, along-strike displacement profiles between the two sides of the surface rupture, a pattern that cannot be explained with linear elastic theory. This observation suggests that the elastic moduli of the crust in tension and in compression are different because of the presence of cracks in the crust at shallow depth. A model indicates that a ratio of 2 between compressive and tensile elastic moduli can account for the observed asymmetry, a ratio that is consistent with laboratory and borehole measurements.
英文关键词	crustal structure; earthquake; elasticity; fault; rupture; synthetic aperture radar; article; earthquake; elasticity; geology; interferometer; Nepal; priority journal; rock; telecommunication; young modulus; China
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245031
推荐引用方式 GB/T 7714	Peltzer G.,Crampé F.,King G.. Evidence of nonlinear elasticity of the crust from the Mw7.6 Manyi (Tibet) earthquake[J],1999,286(5438).
APA	Peltzer G.,Crampé F.,&King G..(1999).Evidence of nonlinear elasticity of the crust from the Mw7.6 Manyi (Tibet) earthquake.Science,286(5438).
MLA	Peltzer G.,et al."Evidence of nonlinear elasticity of the crust from the Mw7.6 Manyi (Tibet) earthquake".Science 286.5438(1999).