Abstract
The analysis of 3D relief models of the lower Amur region and several adjacent areas suggested that the structure of the region is related to the horizontal tectonic layering of the upper part of the Amur plate. When it was dislocated to the northwest at the terminal Cretaceous, some fragments of the upper layers were displaced not strictly synchronously but with some lag relative to the whole plate. This scenario was responsible for the formation of the main morphostructural elements of the region: river valleys, mountain ranges, and graben series. These inferences are supported by field observations and some geological data. The proposed hypothesis can also be applied for several other regions.
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Original Russian Text © V.I. Usikov, 2011, published in Tikhookeanskaya Geologiya, 2011, Vol. 30, No. 6, pp. 14–32.
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Usikov, V.I. The 3d relief models and structure of the Earth’s upper crust in the Amur region. Russ. J. of Pac. Geol. 5, 492–508 (2011). https://doi.org/10.1134/S1819714011060108
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DOI: https://doi.org/10.1134/S1819714011060108