PRESENT-DAY KINEMATICS OF THE NORTHERN PART OF THE ERGUNA CONTINENTAL MASSIF (EASTERN PART OF THE CENTRAL ASIAN FOLD BELT)
The paper presents data of modern movements in the northern part of the Argun continental massif. That data are based on geodetic measurements using GPS technology and geological and geophysical information. Measurements were carried out at the geodynamic range, covering the territory with coordinates from 121 to 128 degrees east and from 53 to 56 degrees north. Modern geodynamics and seismicity of the region are largely determined by the interaction of the Eurasian and Amur lithospheric plates, the conjugation zone of which is a transit zone consisting from many mobile tectonic blocks limited by seismically active faults. As a result of GPS data processing, a vector field of displacement velocities of geodynamic polygon sites in the Upper Amur region was obtained. The established displacement parameters (direction, magnitude) indicate the homogeneity of the vector field of points displacement belonging to the northern part of the Argun massif and the absence of significant motions in its range (the differences in the vector components do not exceed the first mm per year). A conclusion is made about the kinematic integrity of the northern part of the Argun massif at the present stage.