FORMATION AND STRUCTURE OF HYPERGENESIS ZONE
IN THE ABOVE-SALT LAYER OF THE VERKHNEKAMSKOE
POTASSIUM SALT DEPOSIT, PERM KRAI, RUSSIA
Yu. A. Mamaev¹,*, A. A. Yastrebov^1
1Sergeev Institute of Environmental Geoscience, Russian Academy of Sciences,
Ulanskii per., 13, str. 2, Moscow, 101000 Russia
*E-mail: mamaev47ya@mail.ru

The paper describes the formation conditions and factors, as well as the structure and properties of rocks at the unique geological object within the Verknekamskoe potassium salt deposit, i.e., more than 90-m-thick zone of hypergenesis in the above-salt massif of interbedding terrigenous, terrigenous- carbonate and halogen deposits of lower Permian age, which covers the salt horizon of 300-700 m thickness. The geological history of the area is described in brief, which controls its geological and geomorphological structural features. The natural conditions and rock-transforming factors operating for millions of years are discussed. The composition, state and properties of rock in the hypergenesis zone are characterized, including their changes with the depth. This is important for the assessment and prediction of karst development in the considered area, as well as surface deformations and collapses.

Keywords: Verkhnekamskoe potassium salt deposit, above-salt layer, hypergenesis zone, structure of massif, rock properties.
DOI: https://doi.org/10.31857/S0869-78092019230-37

REFERENCES

1. Barenbaum, A.A. Galaktika, Solnechnaya Sistema, Zemlya. Sopodchinennye protsessy i evolyutsiya [Galaxy, the Solar System, and the Earth. Hierarchical processes and evolution]. Moscow, GEOS, 2002, 394 p. (in Russian)

2. Bolotina, I.N., Sergeev E.M. Microbiological research in engineering geology. Inzhenernaya geologiya, 1987, no. 5, pp. 3-17 (in Russian)

3. Geologicheskie pamyatniki Permskogo kraya. Entsiklopediya [Geological monuments of the Perm krai. Encyclopedia] I.I. Chaikovskii, Ed., Perm, Mining Institute Ural Branch RAS Publ., 2009, 616 p. (in Russian)

4. Inzhenernaya geologiya SSSR. T.1. Russkaya platforma [Engineering geology of the USSR. Vol. 1. The Russian platform]. Moscow, Moscow State Univ. Publ., 1978, 528 p. (in Russian)

5. Koronovskii, N.V. Obshchaya geologiya. Uchebnik [General geology. Manual]. 2d edition, Moscow, Knizhnyi dom “Universitet” Publ., 2010, 552 p. (in Russian)

6. Maksimovich, N.G., Khmurchik, V.T. Izmeneniya inzhenerno-geologicheskikh uslovii pod deistviem mikroorganizmov [Changes in engineering geological conditions under the influence of microorganisms]. Materialy 9i Obshcherossiiskoi konf. “Perspektivy razvitiya izyskanii v stroitel'stve f RF [Proc. of the 9th All-Russia Conference on the Prospects in Survey Development in Construction in Russia]. Moscow, Geomarketing Publ., 2013, 204 pp. (in Russian)

7. Mamaev, Yu.A., Yastrebov, A.A. Formirovanie i osobennosti strukturno-tektonicheskogo plana territorii Verkhnekamskogo mestorozhdeniya kaliinykh solei v Permskom krae RF [Formation and structural-tectonic specifics of the Verkhnekamskoe potassium salt deposit territory, Perm krai, Russia]. Sergeevskie chteniya, vyp. 19, Moscow, RUDN, 2017, pp. 523-529 (in Russian).

8. Osipov, V.I., Baryakh, A.A., Sanfirov, I.A., Mamaev, Yu.A., Yastrebov, A.A. Hydrogeomechanical conditions of karst sinkhole formation in the area of potassium mines in Berezniki town, Perm krai. Geoekologiya, 2016, no. 2, pp. 142-148 (in Russian)

9. Osipov, V.I., Zverev, V.P., Kostikova, I.A., Mamaev, Yu.A. Hydrogeochemical features of water-rock in-teraction in Verchnekamskii saliferous basin. Geoekologiya, 2014, no. 5, pp. 404-409 (in Russian)

10. Sorokhtin, O.G., Ushakov, S.A. Razvitie Zemli [Development of the Earth]. Moscow, MSU Publ., 2002, 506 p. (in Russian)