Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1000
AuthorsWei, M.* 
Decheng, J.* 
Chizhang, C.* 
Peizhen, Z.* 
Fengying, M.* 
TitleCharacteristics of the active Luoshan Fault since Late Pleistocene, North Central China
Issue Date2003
Series/Report no.46 (5)
URIhttp://hdl.handle.net/2122/1000
Keywordsnortheastern margin of Tibet plateau
paleoseismology
slip-rate
Subject Classification04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology 
04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution 
AbstractThe Luoshan Fault located at the northeastern margin of Tibet plateau strikes roughly N-S, and is composed of six left-stepping sections with a total length of 60 km. Much evidence suggests that the Luoshan Fault is a reverse right-lateral strike-slip fault. The largest right-lateral strike-slip displacement and the most abundant dextral offset phenomena are located along the central section. Based on the right-lateral strike-slip offsets of the oldest alluvial fan, and of a gully and on the average displacement of the same order of gullies, the minimum slip-rate has been 2.15 ± 0.2 mm/yr since Late Pleistocene. Many surface rupture phenomena, such as fault scarps with fresh free-face, ground fissures, displacements of very young gullies, imply that a recent earthquake occurred along this fault. Combining the historical catalogue and our results, we believe that the 1561 A.D. earthquake was produced by the Luoshan Fault. Three paleoearthquakes were determined by means of paleoseismic studies along the Luoshan Fault: they occurred after 8200 ± 600 years BP, between 3130 ± 240 years BP and 4150 ± ± 120 years C.BP, and before 2230 ± 170 years BP, respectively.
Appears in Collections:Annals of Geophysics

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