TY - JOUR

T1 - The impact of environmental and anthropogenic factors on composition of peloids in modern salt lakes

AU - Kotova, I. K.

AU - Kotov, S. R.

AU - Kayukova, E. P.

AU - Mordukhai-Boltovskaya, L. V.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Mineralogical, geochemical, and granulometric characteristics of bottom sediments of the Dead Sea and Crimean salt lakes are analyzed to identify geological and anthropogenic aspects affecting their composition. Regional geological conditions determine a significantly sulphate mineral-salt type and chemical composition of peloids of Crimean salt lakes, and chloride-carbonate mineral-salt type and chlorine-calcium composition of the Dead Sea peloids. Local geological factors influence the geochemical and particle size characteristics of peloids: composition and geochemical specialization of surrounding rocks provide a Cu-Rb-Zn-Mo-Ca-Cl association in peloids of the Dead Sea and Fe-V-Mn-Co-Y-Pb association in the mud of some Crimean lakes and bedding conditions of the mud layer affect the granulometric characteristics of peloids. The anthropogenic impact is manifested in the characteristics of peloids in some salt lakes of the Crimea. Extremely low contents of salts (halite) and salt-forming elements (Cl, S) in the mud of Lake Kuchuk-Adzhigol is caused by its pollution and man-made wastewater. Coarse particle size of peloids of Saki Lake is caused by long-term use of mud sediments. The development of an iron ore mine and factory near Lake Tobechik led to the industrial pollution of the lake mud by arsenic, manganese and iron. Refs23. Figs8. Tables1.

AB - Mineralogical, geochemical, and granulometric characteristics of bottom sediments of the Dead Sea and Crimean salt lakes are analyzed to identify geological and anthropogenic aspects affecting their composition. Regional geological conditions determine a significantly sulphate mineral-salt type and chemical composition of peloids of Crimean salt lakes, and chloride-carbonate mineral-salt type and chlorine-calcium composition of the Dead Sea peloids. Local geological factors influence the geochemical and particle size characteristics of peloids: composition and geochemical specialization of surrounding rocks provide a Cu-Rb-Zn-Mo-Ca-Cl association in peloids of the Dead Sea and Fe-V-Mn-Co-Y-Pb association in the mud of some Crimean lakes and bedding conditions of the mud layer affect the granulometric characteristics of peloids. The anthropogenic impact is manifested in the characteristics of peloids in some salt lakes of the Crimea. Extremely low contents of salts (halite) and salt-forming elements (Cl, S) in the mud of Lake Kuchuk-Adzhigol is caused by its pollution and man-made wastewater. Coarse particle size of peloids of Saki Lake is caused by long-term use of mud sediments. The development of an iron ore mine and factory near Lake Tobechik led to the industrial pollution of the lake mud by arsenic, manganese and iron. Refs23. Figs8. Tables1.

KW - Anthropogenic factors.

KW - Crimean salt lakes

KW - Lake sediments

KW - Peloids

KW - The Dead Sea

UR - http://www.scopus.com/inward/record.url?scp=85042608051&partnerID=8YFLogxK

U2 - 10.21638/11701/spbu07.2017.204

DO - 10.21638/11701/spbu07.2017.204

M3 - Article

AN - SCOPUS:85042608051

VL - 64

SP - 172

EP - 191

JO - Вестник Санкт-Петербургского университета. Науки о Земле

JF - Вестник Санкт-Петербургского университета. Науки о Земле

SN - 2541-9668

IS - 2

ER -