scholarly journals Natural radioactivity in geothermal waters, Alhambra Hot Springs and nearby areas, Jefferson County, Montana

1977 ◽  
Author(s):  
Robert Benjamin Leonard ◽  
Victor J. Janzer
Keyword(s):  
Natural Radioactivity ◽  
Hot Springs ◽  
Jefferson County ◽  
Geothermal Waters

scholarly journals Hydrogeochemistry, Geothermometry, and Genesis of the Hot Springs in the Simao Basin in Southwestern China

Geofluids ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-23 ◽  
Author(s):  
Yuqi Zhang ◽  
Xun Zhou ◽  
Haisheng Liu ◽  
Mingxiao Yu ◽  
Kuo Hai ◽  
...  
Keyword(s):  
Carbonate Rocks ◽  
Hot Springs ◽  
Cold Water ◽  
Metamorphic Rocks ◽  
Formation Mechanisms ◽  
Chemical Compositions ◽  
Red Beds ◽  
Incongruent Dissolution ◽  
Geothermal Waters ◽  
Isotopic Analyses

In the Simao Basin in southwest China widely occur red beds of poor permeability. Nevertheless, more than 100 springs exist in the basin, some of which are hot springs with varying temperature. Hot springs contain abundant information on hydrogeochemical processes and groundwater circulation. In this study, hydrochemical and isotopic analyses and mixed models are used to examine the sources of recharge, heat, and solutes of the hot springs to better understand the subsurface processes and formation mechanisms of different hot springs in the basin. Three types of springs are found in the Simao Basin: springs of HCO3-Na type occur in the metamorphic rocks, springs of HCO3-Ca(Mg) and Cl-HCO3-Na-Ca types in the carbonate rocks, and springs of Cl(SO4)-SO4(Cl)-HCO3-Na(Ca) type in the red beds. Data of δ2H and δ18O indicate that the hot springs in the Simao Basin are meteoric in origin. Incongruent dissolution is the dominant process affecting the chemical compositions of the spring waters. The hydrochemical constituents of the hot springs in the metamorphic rocks, carbonate rocks, and red beds are influenced by the weathering of albite and the dissolution of carbonate, gypsum, anhydrite, and halite. The geothermal waters are mixed with shallow cold waters in their ascending processes, and the mixing ratios of cold water range from 58% to 94%. Due to the effect of mixing, the reservoir temperatures (51°C-127°C) calculated with the quartz geothermometer are regarded as the minimum reservoir temperatures. More reliable reservoir temperatures (91°C-132°C) are estimated with the fixed-Al method. The following mechanisms contribute to the formation of hot springs in the Simao Basin: the groundwater receives recharge from infiltration of precipitation and undergoes deep circulation, during which groundwater is heated by heat flow and incongruently dissolves the subsurface minerals and emerges in the form of hot springs along the permeable fracture or fault zones.

scholarly journals ACTIVE GEOTHERMAL SYSTEMS IN THE CONTINENTAL RIFT ZONES OF THE MENDERES MASSIF, WESTERN ANATOLIA, TURKEY

2017 ◽  
Vol 50 (2) ◽  
pp. 885
Author(s):  
N. Özgür ◽  
T. Arife Çalışkan
Keyword(s):  
Hot Springs ◽  
Water Reservoir ◽  
Continental Rift ◽  
Western Anatolia ◽  
Volatile Components ◽  
Geothermal Systems ◽  
Geothermal Waters ◽  
Menderes Massif ◽  
Clastic Sediments ◽  
Rift Zones

The active geothermal waters of Kızıldere, Bayındır, and Salihli in the continental rift zones of the Büyük Menderes, Küçük Menderes and Gediz represent typical examples in the study area. The meteoric waters in the drainage areas of the rift zones percolate at NE-SW and/or NW-SE trending fault zones and permeable clastic sediments into the reaction zone of the roof area of a magma chamber situated in a probable depth of up to 5 km where meteoric fluids are heated by the cooling magmatic melt and ascend to the surface due to their lower density caused by convection cells. The volatile components of CO2, SO2, HCl, H2S, HB, HF, and He out of the magma reach the geothermal water reservoir where an equilibrium between altered rocks, gas components, and fluids performs. Thus, the geothermal waters ascend in the tectonical zones of weakness at the continental rift zones of the Menderes Massif in terms of hot springs, gases, and steams. These fluids are characterized by high to medium CO2, H2S and NaCl contents.

scholarly journals Origin and Circulation of Springs in the Nangqen and Qamdo Basins, Southwestern China, Based on Hydrochemistry and Environmental Isotopes

Geofluids ◽  
2022 ◽  
Vol 2022 ◽  
pp. 1-25
Author(s):  
Xiwei Qin ◽  
Haizhou Ma ◽  
Xiying Zhang ◽  
Xiasong Hu ◽  
Guorong Li ◽  
...  
Keyword(s):  
Meteoric Water ◽  
Hot Springs ◽  
Environmental Isotopes ◽  
Hydrothermal Systems ◽  
Geochemical Type ◽  
Spatiotemporal Evolution ◽  
Geothermal Waters ◽  
Saline Springs ◽  
Silica Geothermometry ◽  
Isotope Analyses

The Nangqen and Qamdo (NQ-QD) basins in China have very rich geothermal and brine resources. The origin and spatiotemporal evolutionary processes of its hot and saline springs however remain unclear. Geochemical and isotopic (18O, 2H, 3H) studies have therefore been conducted on the water from the geothermal and saline springs in the NQ-QD Basin. All saline springs in the study area are of the Na-Cl geochemical type while geothermal waters show different geochemical types. The oxygen and hydrogen isotopic compositions of the springs in the NQ-QD Basin are primarily controlled by meteoric water or ice-snow melt water and are influenced by rock-water interactions. It is found that the saline springs in the study area are derived from the dissolution of halite and sulfate that occur in the tertiary Gongjue red bed, while the hot springs in the QD Basin are greatly influenced by the dissolution of carbonatites and sulfates from the Bolila (T3b) and Huakaizuo (J2h) formations. Results from silica geothermometry and a silicon-enthalpy hybrid model indicate that the apparent reservoir temperatures and reservoir temperatures for the hot springs in the QD Basin range from 57–130°C to75–214°C, respectively. Deuterium analysis indicates that most of the hot springs are recently recharged rain water. Furthermore, the saline springs have a weaker groundwater regeneration capacity than the hot springs. Tritium data shows that the ranges of calculated residence times for springs in this study are 25 to 55 years, and that there is a likelihood that hot springs in the QD Basin originated from two different hydrothermal systems. The geochemical characteristics of the NQ-QD springs are similar to those of the Lanping-Simao Basin, indicating similar solute sources. Thus, the use of water isotope analyses coupled with hydrogeochemistry proves to be an effective tool to determine the origin and spatiotemporal evolution of the NQ-QD spring waters.

Natural radioactivity levels of geothermal waters and their influence on soil and agricultural activities

2013 ◽  
Vol 158 (2) ◽  
pp. 148-155 ◽  
Author(s):  
M. Murat Sac ◽  
S. Aydemir ◽  
M. Ichedef ◽  
M. N. Kumru ◽  
M. Bolca ◽  
...  
Keyword(s):  
Natural Radioactivity ◽  
Agricultural Activities ◽  
Geothermal Waters ◽  
Radioactivity Levels

Radiation doses due to natural radioactivity in Al Hammah hot springs, Jordan

2013 ◽  
Vol 6 ◽  
pp. 127-134
Author(s):  
Amin Al-Okour ◽  
Abdul-Wali Ajlouni ◽  
Abdullah Ajlouni ◽  
Saleh Shakhatreh
Keyword(s):  
Natural Radioactivity ◽  
Hot Springs ◽  
Radiation Doses

Radiation doses due to natural radioactivity in the Afra hot springs, Jordan

2010 ◽  
Vol 7 (1) ◽  
pp. 48 ◽  
Author(s):  
Abdul Wali Ajlouni ◽  
Manal Abdelsalam ◽  
Osama Abu Haija ◽  
Yacoub S. Almasa'efah
Keyword(s):  
Natural Radioactivity ◽  
Hot Springs ◽  
Radiation Doses

scholarly journals Geochemical Characterization of Geothermal Spring Waters Occurring in South Part of Gujarat and West Coast Geothermal Province of Maharashtra, India

2021 ◽  
Author(s):  
Anirbid Sircar ◽  
Kriti Yadav ◽  
Namrata Bist ◽  
Hemangi Gaurangbhai Oza
Keyword(s):  
West Coast ◽  
Hot Springs ◽  
Hot Spring ◽  
Geothermal Water ◽  
Geothermal Waters ◽  
Geothermal Spring ◽  
Drinking Purposes ◽  
Industrial Operations ◽  
Tds Concentration ◽  
Ph Range

Abstract Geothermal waters are extensively useful for various purposes such as in industrial plants, societal benefits, irrigation, and domestic consumptions. However, its physiochemical characterization is very important before using it for any rationale. The main objective of this paper is to identify the hydro-chemistry of geothermal water which is placed in southern part of Gujarat such as Unai hot springs and Saputara geothermal springs, and west coast geothermal province (WCGP) like Tural-Rajwadi group of hot springs. The standard methods were used to carry out the analysis of geothermal water. Piper, Stiff, Gibbs, Extended Durov, and Wilcox diagrams have been plotted to categorize water samples in facies. Spatial distribution curves have also been plotted for geothermal regions of Gujarat and Maharashtra. The geochemistry of groundwater is influenced by the presence of most important ions like Na+, Ca2+, Mg2+, K+, Cl-, HCO3-, and SO42-. Geothermal spring of Unai contains high TDS concentration around 1000 mg/l thus it cannot be used for drinking purposes but it can be utilized for domestic, balneology, and industrial purposes. However, after desalination this water can be utilized for drinking purposes. In Tural-Rajwadi hot springs TDS concentration was > 900 mg/l and pH range was between7-8 hence it can be used for domestic and industrial purposes. The temperature range of Tural-Rajwadi geothermal hot spring is 55-65°C which is very useful for milk pasteurization, industrial operations, space heating, balneology facilities like greenhouses and aquaculture ponds, and domestic purposes.

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