Slip-rate measurements on the Karakorum Fault may imply secular variations in fault motion

被引：188

作者：

Chevalier, ML

Ryerson, FJ ^{[1
]}

Tapponnier, P

Finkel, RC

Van der Woerd, J

Li, HB

Liu, Q

机构：

[1] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA

[2] Inst Phys Globe Strasbourg, CNRS, UMR 7578, Lab Tecton Mecan Lithosphere, F-75252 Paris 05, France

[3] Inst Phys Globe Strasbourg, CNRS, UMR 7516, F-67084 Strasbourg, France

[4] Chinese Acad Geol Sci, Inst Geol, Lab Continental Dynam, Beijing 100037, Peoples R China

[5] Total Fina Elf, Total Explorat China, Beijing 100004, Peoples R China

来源：

SCIENCE | 2005年 / 307卷 / 5708期

关键词：

D O I：

10.1126/science.1105466

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Beryllium-10 surface exposure dating of offset moraines on one branch of the Karakorum Fault west of the Gar basin yields a long-term (140- to 20-thousand-year) right-lateral slip rate of similar to10.7 +/- 0.7 millimeters per year. This rate is 10 times larger than that inferred from recent InSAR analyses (similar to1 +/- 3 millimeters per year) that span similar to8 years and sample all branches of the fault. The difference in slip-rate determinations suggests-that large rate fluctuations may exist over centennial or millennial time scales. Such fluctuations would be consistent with mechanical coupling between the seismogenic, brittle-creep, and ductile shear sections of faults that reach deep into the crust.

引用

页码：411 / 414

页数：4

共 30 条

[11] Large-scale geometry, offset and kinematic evolution of the Karakorum fault, Tibet [J].

Lacassin, R ;

Valli, F ;

Arnaud, N ;

Leloup, PH ;

Paquette, JL ;

Haibing, L ;

Tapponnier, P ;

Chevalier, ML ;

Guillot, S ;

Maheo, G ;

Xu, ZQ .

EARTH AND PLANETARY SCIENCE LETTERS, 2004, 219 (3-4) :255-269

[12] Fast late Pleistocene slip rate on the Leng Long Ling segment of the Haiyuan fault, Qinghai, China -: art. no. 2276 [J].

Lasserre, C ;

Gaudemer, Y ;

Tapponnier, P ;

Mériaux, AS ;

Van der Woerd, J ;

Yuan, DY ;

Ryerson, FJ ;

Finkel, RC ;

Caffee, MW .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2002, 107 (B11)

[13]

LASSERRE C, 2001, EOS, V42, pF271

[14]

Liu Q., 1993, Paleoclimat et contraintes chronologiques sur les mouvements recents dans l'Ouest du Tibet: Failles du Karakorum et de Longmu Co-Gozha Co, lacs en pull-apart de Longmu Co et de Sumxi Co

[15]

MERIAUX A, IN PRESS J GEOPHYS R

[16] Rapid slip along the central Altyn Tagh Fault:: Morphochronologic evidence from Cherchen He and Sulamu Tagh -: art. no. B06401 [J].