The low-temperature geothermal area of Reşadiye is located within the Kelkit Valley in the middle of the Black Sea region of Turkey. The area is covered with widespread travertine deposits which are acquired immediately on deposition from hot spring waters. Thermal waters have temperatures between 42 °C and 49 °C and the discharge rate is 3 L/sec. Total dissolved solids range from 3686 to 4204 mg/L. These thermal waters are of Na-HCO₃-Cl type. A geothermal reservoir having probable temperature of about 100° is the source of thermal water for the springs. Before emerging along the margins of exposed carbonate formations through the faults and fractures, the waters interacts sometimes with Na-rich Neogene sediments and/or with B-rich rising geothermal fluids as confirmed by high concentrations of Cl, and, to a greater degree, by the presence of B. The conductive process along with the mixing of thermal waters with shallow groundwaters is the main cooling mechanism. Deuterium and oxygen-18 signatures of thermal groundwater indicate its meteoric origin. Equilibrium states of the Reşadiye thermal waters studied by means of the Na–K–Mg triangular diagram, K–Mg–Ca geoindicator diagram, and finally the activity diagrams in the systems composed of Na₂O–CaO–MgO-K₂O–Al₂O₃–SiO₂–CO₂–H₂O phases indicate that the springs and low-temperature geothermal well waters in the area can be classified as shallow or mixed waters which are likely to be equilibrated with muscovit at temperature similar to those calculated from the chemical geothermometers. It was also observed that mineral equilibrium in Reşadiye waters is largely controlled by CO₂ concentration. Based on acquired data, a conceptual model of the geothermal system of Reşadiye is proposed.

Reşadiye的低温地热区位于土耳其黑海地区中部的Kelkit山谷内。该地区覆盖着广泛的钙华沉积物，这些沉积物是在温泉水中沉积后立即获得的。热水的温度在42°C至49°C之间，排放速率为3 L / sec。总溶解固体为3686至4204 mg / L。这些热水是Na-HCO ₃-Cl类型。弹簧的热水来源是大约100°C的地热库。在沿着断裂和裂缝沿着裸露的碳酸盐岩地层的边缘出现之前，这些水有时会与富含Na的新近纪沉积物和/或富含B的上升地热流体相互作用，这通过高浓度的Cl证实，并且在更大程度上，主要的冷却机制是传导过程以及热水与浅层地下水的混合。热水中的氘和氧18信号表明其源源不断。利用Na–K–Mg三角图，K–Mg–Ca地球指示剂图以及最后由Na ₂组成的系统中的活动图，研究了Reşadiye热水的平衡态O–CaO–MgO-K ₂ O–Al ₂ O ₃ –SiO ₂ –CO ₂ –H ₂ O相表明该地区的泉水和低温地热井水可归为浅水或混合水。在与化学地热仪计算得出的温度相似的温度下用muscovit进行平衡。还观察到，Reşadiye水域的矿物质平衡在很大程度上受CO ₂浓度控制。基于获得的数据，提出了Reşadiye地热系统的概念模型。