Characteristics of formation of chemical composition of groundwater of active water exchange zone of the Bordak catchment area (South-Western Crimea)

Authors

  • Елена Павловна Каюкова St. Petersburg State University, 7–9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
  • Ирина Клавдиевна Котова St. Petersburg State University, 7–9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation

DOI:

https://doi.org/10.21638/11701/spbu07.2017.402

Abstract

The article focuses on study of the chemical composition of the groundwater zone of active water exchange. The site of research was the Bodrak catchment area (South-Western Crimea). Formation of groundwater is caused by the infiltration of precipitation. Its chemical composition is influenced by natural and anthropogenic factors, but primarily it is determined by the enclosing sediments. At the same time, a leading role belongs to the sand-and-clay and volcanic-sedimentary rocks of Triassic and Jurassic. The predominant ions in the chemical composition of groundwater are mostly HCO3–, Ca2+. Factors affecting variations of chemical composition of groundwater of active water exchange in the Bodrak catchment area are revealed. First of all, this is the chemical composition of the enclosing sediments, under the influence of which the differences in the composition of the groundwater of sandy-argillaceous, volcanogenic-sedimentary horizons (T2—J1) and carbonate deposits (Cretaceous Paleogene) are formed. The nitrate ion and the association of Zn—Fe—Cu—Pb—Ni—Al in the groundwater zone of active water exchange are associated with anthropogenic impact. The series of elements Sb—As—Se—Co—Mo—Sn—Ag can be connected with the numerous sulfide nodules characteristic of rocks of flysch deposits (T2—J1) and carbonate deposits (Cretaceous—Paleogene).

Keywords:

Crimean Mountains, underground water, zone of active water exchange

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References

Литература

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Published

2017-12-13

How to Cite

Каюкова, Е. П. and Котова, И. К. (2017) “Characteristics of formation of chemical composition of groundwater of active water exchange zone of the Bordak catchment area (South-Western Crimea)”, Vestnik of Saint Petersburg University. Earth Sciences, 62(4), pp. 343–356. doi: 10.21638/11701/spbu07.2017.402.

Issue

Vol. 62 No. 4 (2017)

Section

Articles

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Articles of "Vestnik of Saint Petersburg University. Earth Sciences" are open access distributed under the terms of the License Agreement with Saint Petersburg State University, which permits to the authors unrestricted distribution and self-archiving free of charge.