Conceptual model of the formation of nitrogen thermal waters in crystalline rock massifs (example of the Kuldur Spa)
https://doi.org/10.33623/0579-9406-2022-2-78-90
Abstract
The study of the influence of hydrodynamic factors on the occurrence of nitrogen thermal waters in crystalline massifs, by the example of the Kuldur field, is presented in the article. The results of two-dimensional modeling (based on FEFLOW code) of several variants of formation and circulation of therms in the study area are considered. Model parameters included temperature (130–140 °C), calculated on the basis of geothermometers, and the residence time of waters in the rock massif (68 800–254 000 years), estimated by means of 14C and 4He dating. The modeling results show that exactly the filtration parameters of the granite massif are the main factor controlling the dynamics of fluid movement and, consequently, the relative age of thermal waters. It is also found that the filtration characteristics of the fault zone have a significant influence on the temperature of thermal water discharge.
About the Authors
L. A. LyaminaRussian Federation
Larisa A. Lyamina
Moscow
N. A. Kharitonova
Russian Federation
Moscow, Vladivostok
A. V. Rastorguev
Russian Federation
Alexandre V. Rastorguev
Moscow
G. A. Chelnokov
Russian Federation
Georgy A. Chelnokov
Moscow
I. V. Bragin
Russian Federation
Ivan V. Bragin
Vladivostok
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Review
For citations:
Lyamina L.A., Kharitonova N.A., Rastorguev A.V., Chelnokov G.A., Bragin I.V. Conceptual model of the formation of nitrogen thermal waters in crystalline rock massifs (example of the Kuldur Spa). Moscow University Bulletin. Series 4. Geology. 2022;(2):78-90. (In Russ.) https://doi.org/10.33623/0579-9406-2022-2-78-90