The geochemistry of calcium chloride brines in the oleniok cryoartesian basin (Siberian platform)

S. V. Alexeev, L. P. Alexeeva, S. L. Shvartsev, N. S. Trifonov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This article presents results of the physicochemical simulation of the water-rock system equilibrium and discusses a saturation degree of calcium chloride brines in the Oleniok cryoartesian basin. The analyses show that the chloride brines with salinity of 54–57 g/L are in the equilibrium (or quasi-equilibrium) state relative to the main sedimentary rock-forming minerals, but the strong brines (salinity above 300 g/L) are undersaturated relative to these minerals (calcite, dolomite, magnesite, strontianite, anhydrite, celestite, halite and sylvite). The non-equilibrium state of the water–rock system is due to brines dilution during the evolution of the cryolithozone in the Oleniok basin in the Late Pleistocene and Holocene. An additional water amount to reduce the brine salinity was generated during the ice transformation to the liquid phase due to ability of the brines to cause ice melting at negative temperatures and the high ice content in the ice-rich permafrost. The ice–brine interaction leads to dilution of concentrated solutions.

Original languageEnglish
Title of host publicationEducation and Accreditation in Geosciences; Environmental Legislation, Multilateral Relations And Funding Opportunities
PublisherInternational Multidisciplinary Scientific Geoconference
Pages899-904
Number of pages6
Edition12
ISBN (Electronic)9786197105001, 9786197105988, 9786197105995, 9786197408003, 9786197408010, 9786197408027, 9786197408034, 9786197408041, 9786197408058, 9786197408065, 9786197408072, 9786197408089, 9786197408096, 9786197408102, 9786197408119, 9786197408126, 9786197408133
ISBN (Print)9786197408263
DOIs
Publication statusPublished - 1 Jan 2017
Event17th International Multidisciplinary Scientific Geoconference, SGEM 2017 - Albena, Bulgaria
Duration: 29 Jun 20175 Jul 2017

Publication series

NameInternational Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
Number12
Volume17
ISSN (Print)1314-2704

Conference

Conference17th International Multidisciplinary Scientific Geoconference, SGEM 2017
CountryBulgaria
CityAlbena
Period29.6.175.7.17

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Keywords

  • Chloride calcium brines
  • Cryolithozone
  • Groundwater
  • Phisico-chemical simulation
  • Saturation degree

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

Cite this

Alexeev, S. V., Alexeeva, L. P., Shvartsev, S. L., & Trifonov, N. S. (2017). The geochemistry of calcium chloride brines in the oleniok cryoartesian basin (Siberian platform). In Education and Accreditation in Geosciences; Environmental Legislation, Multilateral Relations And Funding Opportunities (12 ed., pp. 899-904). (International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM; Vol. 17, No. 12). International Multidisciplinary Scientific Geoconference. https://doi.org/10.5593/sgem2017/12/S02.114