Interaction of thermal waters with carbonate and aluminosilicate minerals: A case study of Bang mineral hot spring, Central Vietnam

Dmitry A. Novikov, Thi Kim Van Phan, Doan Van Tuyen, Do Thi Thu, Fedor F. Dultsev, Anatoliy V. Chernykh, Tran Viet Hoan

Research output: Contribution to journalConference articlepeer-review

Abstract

Results of the studies of water-rock interactions for the Bang thermal water system (Bang Mineral Hot Spring) in Kuang Binh province, Central Vietnam, are presented for the first time. It was established that the thermal waters (62.1-97.1 °C) with total mineralization of 255-659 mg/dm3 of HCO3-Na composition are supersaturated with respect to carbonate minerals (calcite, magnesite, and dolomite) and saturated with respect to albite, microcline, laumontite, and glaucophane. The waters with the outlet temperature of 24.3-34.5 °C, with mineralization 44-87 mg/dm3 and composition HCO3-Cl-Na-Mg are unsaturated with respect to carbonates and are in the fields of stability of clay minerals: kaolinite, illite, Na-, Ca-, and Mg-montmorillonite. Theseresults are in good agreement with the results of the isotope composition analysis of the hydrothermal vents (δD, δ18O and 3H), according to which the time of water circulation for the first-group is higher than 60 years and may reach more than 1000 years, while for the second-group water it does not exceed 50 years.

Original languageEnglish
Article number01039
Number of pages5
JournalE3S Web of Conferences
Volume98
DOIs
Publication statusPublished - 7 Jun 2019
Event16th International Symposium on Water-Rock Interaction, WRI 2019 and 13th International Symposium on Applied Isotope Geochemistry, 1st IAGC International Conference - Tomsk, Russian Federation
Duration: 21 Jul 201926 Jul 2019

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