TITLE:
Chemical and Isotopic Composition of Water and Gas Phases from Mukhen Spa (Far East of Russia)
AUTHORS:
N. A. Kharitonova, G. A. Chelnokov, I. V. Bragin, O. V. Chudaev
KEYWORDS:
Hydrogeochemistry, Mineral Waters, Carbon Dioxide, Isotopes, Far East
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.3 No.5,
July
17,
2015
ABSTRACT: This study presents new chemical and
isotopic data on the two types of cold high pCO2 groundwaters located in the
Mukhen deposit (Far East of Russia). The first type belongs to HCO3-Ca-Mg waters
with a relatively low TDS (up to 1.7 g/l) and high concentrations of Fe2+, Mn2+,
Ba2+, and SiO2. The second type is of HCO3-Na water with high TDS (up to 14
g/l) and elevated Li+, B, Sr2+, Br?, and I?. New isotopic data of water (δ18O, δD
and 3H) and gas (δ13CTIC) phases along with a detailed geological and
hydrogeological investigation of the study area allowed identifying genesis of
both the mineral waters. The residence time of groundwaters were calculated as
well. It was established that the origin of the high pCO2 groundwaters was
caused by active faulting and CO2 venting in the subsurface zone.