Fault-block structures in the eastern margin of the Amur lithospheric plate,their seismicity,and fluid regimes |
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Authors: | A T Sorokina A P Sorokin M A Serov A A Popov |
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Institution: | 1.Institute of Geology and Nature Management, Far East Branch,Russian Academy of Sciences,Blagoveshchensk, Amur oblast,Russia |
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Abstract: | The results of long-term studies of the neotectonic processes and related phenomena such as the Earth’s interior degassing,
the fluid discharge, and the high seismicity in the zone of interaction between the Amur and Okhotsk lithospheric plates at
the transition between the Verkhnii and Srednii Amur regions were used for defining the separate structural blocks with different
geodynamics and analyzing their relations with the seismic events during the periods of high seismic activity and quiescence.
The heliometric and atmochemical studies in the Zeya-Bureya basin revealed zones of high permeability. Long-term observations
of the fluid dynamics at the Konstantinovka mineral water deposit demonstrate a correlation between the variations in the
water-soluble helium contents and the changes in the stress-deformed state of the blocks located up to 200 km away from regime
observation sites. |
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