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Abstract

Summary

To identify zonal-block structure of the Zmiinyi Island territory using radiometric survey method. Methodology. Radiometric surveys of rocks natural gamma radiation during the period of research surveys on the Zmiinyi Island in 2009 – 2015 in the network of geophysical profiles using geological scintillation dosimeter-radiometer SRP - 68-01. Selective measurements of gamma radiation of layers in vertical extent have been performed in the outcrops of rocks of the coastal slopes. Results. Distribution of gamma radiation power has been compared with absolute gradients of the island’s surface relief. The results of measuring have been divided into two groups: cemented conglomerate-breccias and quartzites (on average 7.5 μR/h); interlayers of sandstones, siltstones and clays (on average 13.5 μR/h). Using the “gamma minimum” criterion fracture-weakened zones have been identified and a map of zonal-block structure of the island’s rock mass has been compiled and analysed. Conclusions. The spatial distribution of gamma radiation the power and gradients of the island’s surface relief caused by both peculiarities of rocks geological structure, lithological composition, manifestations of processes of suffusion underwashing and dispersed material accumulation. The results received allowed to identify the tectonic disturbance zones and build schemes of the Zmiinyi Island territory zonal-block structure.

EAGE Publications BV © 2020 The Authors © European Association of Geoscientists and Engineers
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2020-11-10
2024-04-23

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.202056065
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Using of radiometric method in studying of the Zmiinyi Island structural and tectonic features
Conference Proceedings 2020, 1 (2020); https://doi.org/10.3997/2214-4609.202056065
/content/papers/10.3997/2214-4609.202056065
/content/papers/10.3997/2214-4609.202056065
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