期刊
GEOPHYSICAL RESEARCH LETTERS
卷 41, 期 1, 页码 26-31出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2013GL058170
关键词
InSAR; tectonics; interseismic deformation; back-slip model; geodesy; plate motion
The question whether continental plates deform internally or move as rigid blocks has been debated for several decades. To further address this question, we use large-scale interferometric synthetic aperture radar (InSAR) data sets to study how eastern Anatolia and its surrounding plates deform. We find that most of the deformation is focused at the North and East Anatolian faults and little intraplate deformation takes place. Anatolia is therefore moving, at least its eastern part, as a uniform block. We estimate the slip velocity and locking depth of the North Anatolian fault at this location to be 20 mm/yr and similar to 14 km, respectively. High deformation gradient found near the East Anatolian fault, on the other hand, suggests that little stress is accumulating along the eastern sections of that fault.
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