Hot springs, which are the surface expressions of active geothermal systems at depth, are
widely found in countries around Asia, especially in Southeast and East Asia, and can be
tapped as a renewable energy source without CO2 emissions. However, much information about
such geothermal systems and their potential for heat and energy production is hidden in the
geochemical compositions of hot spring waters. Here, a geochemical survey was conducted
on hot springs from nine geothermal provinces in southern Thailand. Thirty samples were
analyzed to investigate geochemical relationships, understand geochemical characteristics,
identify the origin and mixing of hot waters and calculate the reservoir temperature using
diff erent chemical geothermometers. The surface temperatures of the hot springs range from
40 to 80°C. Among cations of sodium, calcium, and potassium show higher concentrations
than anions for bicarbonate, sulfate, and chlorine. Most of the hot spring waters show a K-Nabicarbonate-rich water signature, refl ecting homogeneity in the hydrochemical processes of
the various hot spring systems. etc...
Keywords
Hot spring; Southern Thailand; Geochemistry; Geothermometer
ENIVRONMENT ASIA
Published by : Thai Society of Higher Education Institutes on Environment Contributions welcome at : http://www.tshe.org/en/
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