2021
DOI: 10.3390/w13091140
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Estimation of the Deep Geothermal Reservoir Temperature of the Thermal Waters of the Active Continental Margin (Okhotsk Sea Coast, Far East of Asia)

Abstract: Low-enthalpy thermal waters (30–70 °C) with nitrogen as a dominant associated gas are spread within the active continental margin of the Russian Far East (east and north of the Okhotsk Sea Coast) and traditionally are of great importance for recreation and balneology facilities. The thermal waters are chemically classified into three groups: (i) Na–HCO3(SO4) type, with low TDS (0.2 g/L) and lowest temperature (<50 °C) and high pH (9.1–9.3), (ii) Na–SO4 type with TDS (~1 g/L), highest temperature (70 °C) and… Show more

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Cited by 9 publications
(7 citation statements)
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References 37 publications
(70 reference statements)
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“…Globally, freshening in over pressurized accreted sediments on active margins can influence the mechanics of shallow-slip tectonism and potentially contribute to mega-thrust earthquakes that are commonly experienced in Chile and elsewhere 45 . Indeed, similar links between meteoric freshening and tectonism may operate on the Cascadia, Nankai, and Okhotsk margins, where meteorically altered geothermal groundwaters 46,47 and pore water trends similar to J1003 48,49 have been reported.…”
Section: Constraints On the Geothermal Groundwater Reservoir And Fluid Migrationmentioning
confidence: 72%
“…Globally, freshening in over pressurized accreted sediments on active margins can influence the mechanics of shallow-slip tectonism and potentially contribute to mega-thrust earthquakes that are commonly experienced in Chile and elsewhere 45 . Indeed, similar links between meteoric freshening and tectonism may operate on the Cascadia, Nankai, and Okhotsk margins, where meteorically altered geothermal groundwaters 46,47 and pore water trends similar to J1003 48,49 have been reported.…”
Section: Constraints On the Geothermal Groundwater Reservoir And Fluid Migrationmentioning
confidence: 72%
“…High fluoride levels in the groundwater could indicate longer water residence time in aquifers. These processes are typical and studied well in low-enthalpy thermal waters all over the world [60][61][62].…”
Section: Fate Of Chemical Heterogeneitymentioning
confidence: 99%
“…Для корректного применения Na-Kгеотермометров при оценке температур термальных вод на глубине циркуляции используется треугольная диаграмма Гиггенбаха (рис. 2) [5]. На диаграмму нанесены точки, отражающие соотношение концентраций катионов в термальных источниках.…”
Section: результаты исследованияunclassified
“…На диаграмму нанесены точки, отражающие соотношение концентраций катионов в термальных источниках. Видно, что подавляющее большинство термальных источников располагается в области «незрелых вод» по [5], т.е. вод, не достигших равновесия с вмещающими породами.…”
Section: результаты исследованияunclassified
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