Early Results on Uranium and Thorium Distribution in the Natural Waters of the Baydar Valley (the Crimean Peninsula)

2021 ◽  
Vol 29 (4) ◽  
pp. 461-471
Author(s):  
D. A. NOVIKOV ◽  
T. V. KORNEEVA ◽  
YU. G. KOPYLOVA ◽  
A. V. CHERNYKH ◽  
F. F. DULTSEV ◽  
...  
Keyword(s):  
Natural Waters ◽  
Crimean Peninsula ◽  
Early Results ◽  
The Crimean Peninsula

Early Results on Uranium and Thorium Distribution in the Natural Waters of the Baydar Valley (the Crimean Peninsula)

2021 ◽  
Vol 29 (4) ◽  
pp. 449-459
Author(s):  
D. A. NOVIKOV ◽  
T. V. KORNEEVA ◽  
YU. G. KOPYLOVA ◽  
A. V. CHERNYKH ◽  
F. F. DULTSEV ◽  
...  
Keyword(s):  
Natural Waters ◽  
Crimean Peninsula ◽  
Early Results ◽  
The Crimean Peninsula

scholarly journals Geochemistry of natural waters of the Baydar valley (Crimean Peninsula)

2019 ◽  
Vol 98 ◽  
pp. 01036
Author(s):  
Larisa A. Nichkova ◽  
Dmitry A. Novikov ◽  
Anatoliy V. Chernykh ◽  
Fedor F. Dultsev ◽  
Galina A. Sigora ◽  
...  
Keyword(s):  
Trace Elements ◽  
Surface Waters ◽  
Natural Waters ◽  
Upper Jurassic ◽  
Alkaline Ph ◽  
Crimean Peninsula ◽  
Ph Values ◽  
Ree Distribution ◽  
Basic Characteristics ◽  
The Crimean Peninsula

The paper discusses the pioneering results of comprehensive hydrogeochemical studies of natural waters of the Baydar valley (southwestern parts of the Crimean Peninsula), whose major aquifers are confined to the upper Jurassic sediments (karst limestone) representing the most important hydrogeological feature of the study area. Fresh and ultra-fresh waters of predominantly bicarbonate calcium composition with total mineralization in the range from 194 to 1137 mg/dm3 are most widespread in the region. The analyzed waters (surface, ground and artesian) differ significantly in chemical composition and their basic characteristics have been arranged in the following patterns: mineralization of 254-832 mg/dm3 and neutral pH (6.98-7.54) for artesian waters; higher mineralization level (up to 1137 mg/dm3) and wide variations of pH values (from 7.18 to 8.31) for ground waters; mineralization from 194 to 288 mg/dm3 and a slightly alkaline pH (between 8.02 and 8.04) for surface waters collected in the Chyornaya river basin and Chernorechensk reservoir. The studied waters display a unique spectrum of trace elements and REE distribution.

scholarly journals Distribution of the stable isotopes (δ18O, δD и δ13C) in natural waters of the Baydar valley (Crimean Peninsula)

2019 ◽  
Vol 98 ◽  
pp. 01038
Author(s):  
Dmitry A. Novikov ◽  
Larisa A. Nichkova ◽  
Anatoliy V. Chernykh ◽  
Fedor F. Dultsev ◽  
Alexander N. Pyryaev ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Organic Compounds ◽  
Surface Waters ◽  
Atmospheric Carbon Dioxide ◽  
Natural Waters ◽  
Meteoric Water ◽  
Soil Layer ◽  
Study Region ◽  
Crimean Peninsula ◽  
The Crimean Peninsula

Results of the study of the stable isotopes (δ18O, δD and δ13C) distribution in natural waters of the Baydar valley (southwestern part of the Crimean Peninsula) are presented. The study region holds fresh and ultra-fresh waters of predominantly bicarbonate calcium composition with TDS varying from 194 to 1137 mg/dm3. The research results revealed that all of the studied waters are of atmospheric origin that lie either along the global (GMWL) or local (LMWL) meteoric water lines. The established variations are: from -9.5 to -5.6‰ for δ18O values in waters with δD values varying from -64.0 to -40.0‰. The source for bicarbonate ion enriched in δ13C in natural waters of the Bauydar valley are carbonate sedimentary rocks, atmospheric carbon dioxide and organic compounds. Surface waters have heavier isotopic composition δ13C (-9.2 – -7.0‰) because of the atmospheric CO2. Artesian waters are differentiated by lighter δ13C (-12.8 – -10.7‰) due to the interactions between carbonate rocks and the dispersed organic matter. Water sources (springs, wells) are characterized by the widest variations of δ13C (-6.9 – -15.5‰) due to the presence of the atmospheric CO2 and intense processes of biochemical decomposition of organic compounds in the soil layer.

Behaviour of natural radionuclides in the waters of the Baydar valley (the Crimean peninsula)

2020 ◽  
Author(s):  
Dmitry A. Novikov ◽  
◽  
Tatiana V. Korneeva ◽  
◽  
Keyword(s):  
Natural Waters ◽  
Natural Radionuclides ◽  
Anthropogenic Influence ◽  
Crimean Peninsula ◽  
The Crimean Peninsula

The first data on the concentrations and forms of uranium and thorium in the natural waters of the Baydar valley (the Crimean Peninsula) are presented. Uranium (238U) concentration was determined to vary within the range from 2.64 ∙ 10-5 to 2.25 ∙ 10-3 mg/dm3, thorium (232Th) from 2.04 ∙ 10-7 to 2.50 ∙ 10-5 mg/dm3. The sites especially enriched with uranium are in the zone of regional fracturing, mainly with sodium aluminosilicates, prone to continental salinization under anthropogenic influence, while waters most enriched with 232Th are in the zone of regional fracturing, mainly with sodium aluminosilicates, subjected to the processes of continental salinization.

Charophyta of the Crimean Peninsula

2001 ◽  
Vol 3 (4) ◽  
pp. 101-110
Author(s):  
G. M. Palamar-Mordvintseva
Keyword(s):  
Crimean Peninsula ◽  
The Crimean Peninsula

ANTHROPOGENIC AND ECONOMIC FACTORS OF THE СRIMEAN ECOLOGY

2020 ◽  
pp. 5-14
Author(s):  
N.P. Demchenko ◽  
N.Yu. Polyakova
Keyword(s):  
Business Owners ◽  
Crimean Peninsula ◽  
The North ◽  
Chemical Release ◽  
The Crimea ◽  
Russian Plant ◽  
The Republic ◽  
The Town ◽  
Integrated Indicators ◽  
The Crimean Peninsula

The situation in the ecology of the Crimean Peninsula in recent years was discussed in the article. The analysis of absolute and integrated indicators of the anthropogenic impact showed that the ecological situation remains difficult, and according to some indicators even continues to deteriorate. In summer 2018, the situation had worsened because of the large chemical release of titanium dioxide on the north of the Crimea from the holding pond of a large Russian plant that is situated near the town of Armyansk. This, in turn, led to the contamination of the large territory on the north of the peninsula. This fact indicates insufficient control by officials of the Republic of Crimea over the implementation of the RF laws for environmental protection by business owners of various forms of ownership, especially private ownership, the level of responsibility for the environment of which is very low.

A Middle Palaeolithic bone tool from Crimea (Ukraine)

Antiquity ◽  
2008 ◽  
Vol 82 (318) ◽  
pp. 843-852 ◽  
Author(s):  
Ariane Burke ◽  
Francesco d'Errico
Keyword(s):  
Middle Palaeolithic ◽  
Technological Properties ◽  
Crimean Peninsula ◽  
Bone Tool ◽  
The Crimean Peninsula

AbstractA fragment of equid tibia found with a Mousterian assemblage in a rockshelter in the Crimean peninsula is carefully examined. The authors show that it has been knapped like flint to produce a tool probably at a time when stone resources were becoming exhausted. This tool is thus the product of a Neanderthal response to a local need as well as proof that the technological properties of bone were known.

Sign in / Sign up

Export Citation Format

Share Document