+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Relative motion across the eastern Tibetan plateau Contributions from faulting, internal strain and rotation rates

, : Relative motion across the eastern Tibetan plateau Contributions from faulting, internal strain and rotation rates. Tectonophysics 584: 240-256

A kinematic model comprising 14 rotating, elastic plastic blocks is used to represent the modern deformation of eastern Tibet and neighboring regions. Block rotations, fault slip rates and permanent strain rates within the blocks are constrained by inverting GPS velocities, slip vectors azimuths derived from earthquakes, and fault slip rates derived from geology. The calculated internal strain rates of blocks in eastern Tibet amounts to 10 to 30 10-9/yr, in contrast to relatively low rates (<5 10-9/yr) in adjacent blocks including the south China, Alxa and Thailand blocks. F-test statistics show that neither the internal strain rates nor the spins of the blocks can be neglected in describing the surface deformation of eastern Tibet. Furthermore, slip on the main faults verifies that the use of deformable blocks can also predict strain localization and strike-parallel variations in slip rates. In terms of east-southeast motion of the eastern Tibetan plateau relative to the Eurasian plate, the net relative velocity contributed by internal strain rates in the blocks amounts to~10mm/yr, about half of that due to the faulting. In terms of N-S shortening of plateau, however, the internal strain rises to a first order factor west of 95 E, contributing approximately 10mm/yr, nearly two times larger than that from faulting. The kinematics in eastern Tibet show that different types of deformation, i.e., NW-SE shear and N-S compression, are taken up by faulting on major faults and distributed contraction, respectively. We use F-test to test the importance of block kinematics in the eastern Tibet. Blocks on the eastern Tibetan plateau deform faster than that in adjacent areas. Moderate and strike-parallel varying slip rate is found on major strike-slip faults. Plateau extrusion due to internal strain is comparable to that due to faulting. The internal strain is the first order factor for N-S shortening across the plateau.


DOI: 10.1016/j.tecto.2012.08.006

Other references

Gorkin, V.Z., 1988: The significance of amine oxidases in pathological states. Patologicheskaia Fiziologiia i Eksperimental'naia Terapiia: 89-92

Dupuy, R., 1960: Intestinal hemorrhages. Gazette Medicale de France 67: 2063-2066

Mischke, R.; Freund, M.; Leinemann-Fink, T.; Eisenberger, B.; Casper, J.; Nolte, I., 1998: Changes in hemostasis of dogs with acute lymphoblastic leukemia. Twelve dogs suffering from acute lymphoblastic leukaemia were investigated concerning the following tests: platelet count, prothrombin time (PT, standard test, modified test), activated partial thromboplastin time (APTT), activity of the individua...

McKenzie, S.A., 2014: Fifteen-minute consultation: Troublesome crying in infancy. There is much written in the medical and lay literature about managing babies who cry too much. Healthcare professional often feel bewildered about how to go about trying to help a baby and their carer, usually the mother. They often undertake inv...

Kim, H.; Kheterpal, E.; Khalili, K.; Amini, S.; Sawaya, B.E., 2002: Transcriptional regulation of the human cdk9 and cyclin T1 genes by Sp1 and p53 in human astrocytes. Journal of Neurovirology 8(Supplement 1): 108, June

Salles, M-Josèphe.; Hervé, D.; Rivet, J-Michel.; Longueville, S.; Millan, M.J.; Girault, J-Antoine.; Mannoury la Cour, C., 2013: Transient and rapid activation of Akt/GSK-3β and mTORC1 signaling by D3 dopamine receptor stimulation in dorsal striatum and nucleus accumbens. D2/D3 dopamine receptors (D2R/D3R) agonists regulate Akt, but their effects display a complex time-course. In addition, the respective roles of D2R and D3R are not defined and downstream targets remain poorly characterized, especially in vivo. The...

Watts, H.E.; MacDougall-Shackleton, S.A.; Hahn, T.P., 2016: Variation among individuals in photoperiod responses: Effects of breeding schedule, photoperiod, and age-related photoperiodic experience in birds. Many organisms use environmental cues to regulate reproductive function in order to time reproduction to coincide with favorable environmental conditions. Whereas we understand much about how environmental cues are used to time reproduction, we kn...

Humpel, C., 2011: Chronic mild cerebrovascular dysfunction as a cause for Alzheimer's disease?. Alzheimer's disease (AD) is a progressive chronic disorder and is characterized by β-amyloid plaques and angiopathy, tau pathology, neuronal cell death, and inflammatory responses. The reasons for this disease are not known. This review prop...

Bergan, J., 1971: Height increment in young plantations of Picea abies in Troms, Trondelag, and Ostland (S.E. Norway). Gives data (in graphs and tables with English legends) on: height increment of P. abies growing at the same altitude but different latitudes on good and medium sites; height increment of four height classes (the mean heights of all plants and of t...

Viste, A., 2001: Effective surgery. Tidsskrift for den Norske Laegeforening 121(11): 1325-1325