Character of surface thermal manifestations and spring waters at the Shargaljuut Hot Springs, Mongolia

Greg Bignall, Bayaraa Batkhishig, Noriyoshi Tsuchiya

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


The Shargaljuut Hot Springs (Mongolia) have been utilised for their medicinal qualities for more than 300 years. Thermal manifestations at Shargaljuut presently comprise a large area of effusively steaming ground, and numerous low-flow springs (<2 1/sec) that discharge near boiling (to 90.5°C), 8.2-8.7 pH, low Cl (<5mg/kg), weakly mineralised (<44mg/kg SiO2, <13mg/kg HCO3 (total)) waters. White to translucent opaline silica sinter covers rock surfaces around many of the hot springs, and exhibit a range of morphological characteristics. The presence of silica sinter is indicative of a high-temperature geothermal resource, although solute geothermometry indicate the springs are likely supplied from water reservoir of no more than ∼130°C, whilst shallow drilling (to 50-60m) on the margin of the main thermal area for the Shargaljuut National Sanatorium tapped waters of ∼80°C. The source of the geothermal energy is inferred to be conductive heat associated with the "South Khangai Hot Spot", which is transferred through the overlying Palaeozoic metasediments and igneous rocks to heat near surface meteoric waters.

Original languageEnglish
Pages (from-to)449-453
Number of pages5
JournalTransactions - Geothermal Resources Council
Publication statusPublished - 2004 Dec 1
EventGeothermal Energy: The Reliable Renewable - Geothermal Resources Council 2004 Annual Meeting, GRC - Indian Wells, CA, United States
Duration: 2004 Aug 292004 Sep 1


  • Manifestations
  • Medicinal qualities
  • Mongolia
  • Shargaljuut Hot Springs
  • Silica sinter
  • Water chemistry

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics


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