气候变化领域集成服务门户(CCPortal): Mantle flow beneath a continental strike-slip fault: Postseismic deformation after the 1999 Hector Mine earthquake

CCPortal

DOI	10.1126/science.1061361
	Mantle flow beneath a continental strike-slip fault: Postseismic deformation after the 1999 Hector Mine earthquake
	Pollitz F.F.; Wicks C.; Thatcher W.
发表日期	2001
ISSN	0036-8075
起始页码	1814
结束页码	1818
卷号	293 期号:5536
英文摘要	Two recent large earthquakes in the Mojave Desert, California - the magnitude 7.3 1992 Landers and magnitude 7.1 1999 Hector Mine earthquakes - have each been fog[owed by elevated crustal strain rates over periods of months and years. Geodetic data collected after the Hector Mine earthquake exhibit a temporaLLy decaying horizOntaL velocity field and a quadrant uplift pattern opposite to that expected for LocaLized shear beneath the earthquake rupture. We interpret the origin of this accelerated crustal deformation to be vigorous flow in the upper mantle in response to the stress changes generated by the earthquake. Our results suggest that transient flow in the upper mantle is a fundamental component of the earthquake cycle and that the Lower crust is a coherent stress guide coupling the upper crust with the upper mantle.
英文关键词	Deformation; Earthquakes; Mines; Strain; Velocity; Mantle flow; Seismology; crustal deformation; earthquake; postseismic process; strike-slip fault; upper mantle; article; earthquake; geography; geology; priority journal; United States; velocity; United States
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/245106
作者单位	U.S. Geological Survey, MS 977, 345 Middlefield Road, Menlo Park, CA 94025, United States
推荐引用方式 GB/T 7714	Pollitz F.F.,Wicks C.,Thatcher W.. Mantle flow beneath a continental strike-slip fault: Postseismic deformation after the 1999 Hector Mine earthquake[J],2001,293(5536).
APA	Pollitz F.F.,Wicks C.,&Thatcher W..(2001).Mantle flow beneath a continental strike-slip fault: Postseismic deformation after the 1999 Hector Mine earthquake.Science,293(5536).
MLA	Pollitz F.F.,et al."Mantle flow beneath a continental strike-slip fault: Postseismic deformation after the 1999 Hector Mine earthquake".Science 293.5536(2001).