Konferensiya maqolasiOchiq kirish
Xo‘ja-Obi-Garm konidagi past entalpiyali termal suvlar (Tojikiston Respublikasi)
Low-enthalpy thermal waters within Khoja-Obi-Garm field (Republic of Tajikistan)
https://doi.org/10.1051/e3sconf/20199801011
Asosiy jihatlar
- Buloq va quduqlardagi suv harorati: 57–93 °C.
- Yer ostidagi baholangan harorat: 140–156 °C (kremniy geotermometrlari) va 193–197 °C (K/Na geotermometri).
- Suv aylanishining taxminiy chuqurligi: 2–3 km.
- pH 8 gacha; umumiy minerallashuv 0,5 g/l dan kam.
- H₂SiO₃ taxminan 140 mg/l, ftor 18 mg/l gacha, radon 814 Bk/l gacha.
- Kon 1 740–1 960 m balandlikda, Dushanbedan 48 km shimolda.
Annotatsiya
This paper presents data on the composition of the low-enthalpy thermal waters from the unique Khoja-Obi-Garm field located at the central part of the southern slope of the Gissar Range, in the gorge of the Khoja-Obi-Garm River, at an altitude of 1740-1960 meters. In this place, the eponymous SPA-center was built. Groundwaters from springs and boreholes of Khoja-Obi-Garm SPA has temperatures from 57 to 93°C, high pH (up to 8) and low TDS (less than 0.5 g/l). The estimated subsurface temperatures for the same thermal waters vary from 140°C to 156°C and 193-197°C based on the silica and K/Na geothermometer temperatures consequently. These waters belong to Na–SO₄–HCO₃ type with high content of H₂SiO₃ (~140 mg/l), F (up to 18 mg/l) and Rn (up to 814 Bq/l). Thermodynamic speciation indicated that these groundwaters are supersaturated with clay minerals and low-temperature zeolites and undersaturated with carbonate and main alumosilicate minerals.
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Sodda qilib aytganda
Xo‘ja-Obi-Garm koni Hisor tizmasi janubiy yonbag‘rining markaziy qismida, Xo‘ja-Obi-Garm daryosi darasida, Dushanbedan 48 km shimolda, 1 740–1 960 m balandlikda joylashgan. U yerda kurort markazi qurilgan. Termal suvlar kenglik yo‘nalishidagi Xo‘ja-Obi-Garm regional uzilmasi bo‘ylab maydalangan granitlar zonasidan ko‘tariladi.
Buloq va quduqlardagi suv harorati 57–93 °C, pH 8 gacha, umumiy minerallashuvi 0,5 g/l dan kam. Suv Na–SO₄–HCO₃ turiga mansub, kremniy, ftor va radonga boy. Suvlarda litiy, rubidiy, seziy va berilliy ko‘p; nodir yer elementlari 1 mkg/l dan oshmaydi. Quduqlardan namunalar 2015–2016-yillarda olingan.
Kremniy geotermometrlari yer ostidagi haroratni 140–156 °C, K/Na geotermometri esa 193–197 °C deb baholaydi. Mualliflar fikricha, suv 2–3 km chuqurlikkacha aylanib chiqadi. 50 yildan ortiq vaqt davomida suv harorati deyarli o‘zgarmagan. Suvlar gil minerallari va past haroratli seolitlarga nisbatan o‘ta to‘yingan, karbonatlar va asosiy alyumosilikat minerallariga nisbatan esa to‘yinmagan.
Iqtibos namunasi
A. Demonova, N. Kharitonova, I. Bragin, G. Chelnokov and V. Ivanov (2019). Low-enthalpy thermal waters within Khoja-Obi-Garm field (Republic of Tajikistan). E3S Web of Conferences 98, 01011 (WRI-16). https://doi.org/10.1051/e3sconf/20199801011