Abstract
The chemical composition of nitric thermal waters in Jiangxi Province, SE-China, is considered. It is shown that the studied thermal waters are characterized by low TDS (293-412 mg/l), but they always have alkaline or highly alkaline pH values. It should be noted that the content of Na+, Si, F-, HCO3-, CO32-, sometimes SO42- is predominant, on the other hand, the content of Ca2+, Mg2+, Cl- is low. It has been established that the main factors responsible for low concentrations of some chemical elements and high concentrations of others are continuous dissolution of aluminosilicate minerals and simultaneous precipitation of the secondary minerals.
Highlights
Jiangxi Province is located in the Southeastern part of China and is one of the provinces where nitrogen-rich thermal waters are distributed most widely in the country
Experimental data on the chemical composition, temperature, pH and salinity of nitric thermal waters are given in Table
It should be noted that the total mineralization dissolved solids (TDS) of thermal waters is extremely low, at the same time, pH is high
Summary
Jiangxi Province is located in the Southeastern part of China and is one of the provinces where nitrogen-rich thermal waters are distributed most widely in the country. A systematic compilation of Province’s hot springs was done by Li Xueli in 1979 [4], later by Sun Zhanxue in 1988 [10], and it is continuing in the present time. In this Province, about 96 hot springs of different gas and chemical composition have been found. The nitric thermal waters are localized, mainly, in the Ganbei and the Gangxinan geothermal areas. Nitric thermal waters are distributed all over geothermal areas, but, mainly, in the Ganbei and the Gangxinan
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