Forming chemical composition of surface waters in the Arctic. Case study of Lake Inari and the River Paz
Journal Title: Вестник МГТУ - Year 2017, Vol 20, Issue 1
Abstract
Questions of studying the formation of surface and ground waters, their interaction with rocks, development of the basics of their rational use and protection are of great fundamental and practical importance. The influence of the northern Fennoscandian (Baltic) Shield rock composition on forming surface waters' chemical composition in the border area of Finland – Russia – Norway (Lake Inari, the River Paz) using physical-chemical modeling (Selector software package) has been evaluated. For the physical-chemical modeling there have been made two samples of chemical analyses of the most widespread rocks forming the catchment area, with their percentage ratio taken into consideration.Since the catchment area of the prevailing majority of streams feeding Lake Inari is composed of rocks of the Lapland granulite belt (LGB) and its framing, it will be the main sample (conditional influence of their composition on the chemical composition of waters is about 80 %). The second sample includes gneisses, migmatites, granite-gneisses, granites and quartz diorites typical for Inari terrane (conventional influence of their composition on the chemical composition of waters is about 20 %). It has been found that the chemical composition of the surface waters is formed by interaction of precipitation with intrusive, metamorphic and sedimentary rocks of northern Fennoskandia containing Clarke concentrations of S, C, F, Zn, Ni, Pb, Cu. It has been shown that due to interactions in the water – rock system the chemical composition of Lake Inari waters as well as upper and middle flow of the River Paz is formed by weathering of granulites of the Lapland granulite belt and Inari terrane granitoids of the northern Fennoscandia. The chemical composition of waters in the River Paz downstream is formed by weathering of metamorphosed volcanic and sedimentary rocks of the Pechenga structure and the impact of industrial pollution.
Authors and Affiliations
S. I. Mazukhina, V. A. Masloboev, S. S. Sandimirov, V. I. Pozhilenko, S. V. Ivanov
Keywords
Related Articles
- EP ID EP216751
- DOI 10.21443/1560-9278-2017-20-1/2-252-260
- Views 127
- Downloads 0
Analysis of long-term monitoring of autotransformer neutral currents
The Kola Science Center of the Russian Academy of Sciences together with the Polar Geophysical Institute is carrying out research concerning the effect of geomagnetic storms on the state of electrical networks and transf...
On formation of substance flows in aerotechnogenically degraded forest landscape
A retrospective analysis of the formation of substance flows in aerotechnogenically degraded forest landscape has been carried out based on the results of testing the atmospheric, soil and stream waters in the vicinity o...
Compliance of information on the content of vitamins when labeling confectionery products with their actual content
Confectionery products possessing an adjusted chemical composition to increase the content of vitamins can serve as an additional their source in human diet. The purpose of the study is to assess the compliance of inform...
Microplankton of the Barents Sea: current composition and structure on the eve of the winter
The results of microplankton (Protista) investigations in the Barents Sea (standard "Kola Meridian Transect", ~70–78° N, 33° 30′ E) in November / December have been presented. Samples for the determination of the taxonom...
The enzymatic activity of various organs and tissues of Far-Eastern trepang as a system of indicators of maturation and quality of products
The activity, substrate-inhibitory specificity, temperature and pH dependence, seasonal changes in proteolytic and nucleolytic enzyme systems of the digestive tract, muscle and reproductive trepangs tissues have been con...