Abstract
In 2010–2012, the Lower Zeya basin was studied by magnetotelluric sounding accompanied by gas-geochemical sampling. The results of the geophysical studies provide sufficient insight into the large geological structures with a measurement step of 5 km and detail of individual elements (boundaries of troughs and rises and the cover thickness) with a step of 1 km. It was established that the MTS method highlights the block structure of the Lower Zeya basin, the inner structure of troughs, the style of the uplift-depression junction, and the regmatic framework of the region. Gas-geochemical studies were used to decipher faults established from geophysical methods and to identify high-permeability zones. The helium and hydrogen anomalies found in the soils suggest that these zones served as the fluid pathways. In some cases, our studies made it possible to outline the localization of many mineral resources.
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Original Russian Text © A.P. Sorokin, V.B. Kaplun, Yu.F. Malyshev, A.T. Sorokina, T.V. Artyomenko, 2015, published in Tikhookeanskaya Geologiya, 2015, Vol. 34, No. 1, pp. 34–48.
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Sorokin, A.P., Kaplun, V.B., Malyshev, Y.F. et al. Geological and geophysical interpretation of the detailed geophysical data on the Lower Zeya region of the Zeya-Bureya sedimentary basin. Russ. J. of Pac. Geol. 9, 22–35 (2015). https://doi.org/10.1134/S1819714015010078
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DOI: https://doi.org/10.1134/S1819714015010078