| Abstract |
The Shargaljuut hot springs, -680km west of Ulaan Baatar (Mongolia), are utilised for their medicinal qualities. Thermal features at Shargaljuut comprise steaming ground and low-flow springs (0.1-2 Vsec), which discharge hot (up to 90.5"C), 8.2-8.7 pH, low C1 (less than lmg/kg), weakly mineralised (less than 44mg/kg SO2, less than 13mg/kg HC03 waters. Shallow drilling indicates a water "reservoir" at 50-60m depth, whilst solute geothermometry points to deeper 460?C fluids. The source of the geothermal energy could be conductive heat associated with the "Mongolian Hot Spot", which is transferred through overlying Palaeozoic metasediments and igneous rocks, to heat near surface meteoric waters. |