Inversion of GPS measurements for a layer of negative dislocation distribution in north China
| Autor: | Hong-wai Conrad (鄧康偉) Tang, Jicang (伍吉倉) Wu, Y. X. Li, Yong-qi (陳永奇) Chen |
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| Rok vydání: | 2003 |
| Předmět: |
Atmospheric Science
Ecology Deformation (mechanics) Inversion (geology) Eurasian Plate Paleontology Soil Science Magnitude (mathematics) Forestry Crust Aquatic Science Oceanography Tectonics Geophysics Space and Planetary Science Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) Dislocation Far East Seismology Geology Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Geophysical Research: Solid Earth. 108 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/2002jb002171 |
| Popis: | [1] In north China, most earthquakes occur at depths of 10–25 km and are considered to be the direct result of deformation or rupture of the brittle upper crustal layer. To describe this mechanism, a planar horizontal negative dislocation plane is used to represent the force of action of the lower crustal layer on an overlying brittle upper crust layer. An area around Beijing in north China has been chosen for applying this negative dislocation layer assumption. A GPS network (Capital Circle GPS Network, CCGN), has been set up for monitoring crust deformations since 1992. In this paper, observations from 1992, 1995, and 1996 GPS surveying campaigns were used to determine model parameters of a negative dislocation layer. Using a Bayesian inversion procedure, more than 95% of data residuals are found to be |
| Databáze: | OpenAIRE |
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