Geofluids Assessment of the Ayub and Shafa Hot Springs in Kopet-Dagh Zone (NE Iran): An Isotopic Geochemistry Approach

Mohammadzadeh, Hossein; Kazemi, Majid

doi:10.1155/2017/6358680

Cited by 12 publications

(6 citation statements)

References 16 publications

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“…To validate the developed Iran MWLs, they were compared with fresh karstic springs across Iran. The δ 18 O, δ 2 H, electrical conductivity (EC), and d-excess values for over 200 karstic freshwater springs are shown in Supplementary Table S3 [17,19,20,43,45,54,[61][62][63][64][65][66][67][68][69][70][71]. Evaporation did not markedly affect the selected karstic springs, and the EC of the karstic springs water was < 1000 μS/cm.…”

Section: Developing Mwls For Iranmentioning

confidence: 99%

Developing Meteoric Water Lines for Iran Based on Air Masses and Moisture Sources

Heydarizad

Raeisi

Sorí

et al. 2019

Water

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Iran is a semi-arid to arid country that faces a water shortage crisis. Its weather is also influenced by various air masses and moisture sources. Therefore, applying accurate stable isotope techniques to investigate Iran’s precipitation characteristics and developing Iran meteoric water lines (MWLs) as an initial step for future isotope hydrology studies is vitally important. The aim of this study was to determine the MWLs for Iran by considering air masses and dominant moisture sources. The Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model backward analysis was used to determine the trajectories of various air masses in 19 weather stations in Iran and the areas covered by them. δ18O and δ2H contents were obtained for precipitation events from 32 stations in Iran and four in Iraq. Stable isotope samples were gathered from different sources and analyzed in various laboratories across the world. Three MWLs for north of Iran, south Zagros, and west Zagros, were determined based on the locations of dominant air masses and moisture sources. The proposed MWLs were validated by comparison with fresh karstic spring isotope data across Iran. In addition, Iran main moisture sources MWLs were used to determine dominant moisture sources role in karstic springs and surface water resources recharge.

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Section: Developing Mwls For Iranmentioning

confidence: 99%

Developing Meteoric Water Lines for Iran Based on Air Masses and Moisture Sources

Heydarizad

Raeisi

Sorí

et al. 2019

Water

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“…The increasing of temperature will decrease the magnetic property of the rock, so that the rock will tend to be lower magnetic field if it is compared to the surrounding rock (Telford et al, 1990). Mohammadzadeh & Kazemi (2017) also found that lower magnetic value at the surrounding area of the hot spring in Iran. Hence, the presence of hot spring is very possible produced by pathway of rock fracture.…”

Section: Results and Discussion The Magnetic Resultsmentioning

confidence: 84%

Integrated geophysical image of the hot spring in Rokan Hulu, Riau, Indonesia

Islami¹,

Irianti²

2019

BGSM

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The first study of the hydrothermal system through the geophysical image in the area of Rokan Hulu hot spring is presented in this paper. The research employed integrated geophysical survey methods which consist of a geomagnetic, geoelectrical resistivity, and very low frequency (VLF) survey. Direct surface resistivity measurement was proposed and used to obtain a correlation of geological conditions with subsurface resistivity values and to correlate with VLF data. The geoelectrical resistivity survey used Wenner configuration, with a minimum electrode distance of 5 m. While the VLF survey was taken at every distance of 6 m. Magnetic surveys were carried out with a spacing of about 0.5 km and covered an area approximately 9 km 2. The results show that there is relatively lower magnetic value zone (about 65 nT) at the hot spring and extends to the southwest. The geoelectrical resistivity shows the possibility of water accumulation with resistivity value less than 150 ohm.m in the zone around the hot spring. While the VLF surveys show more conductive value which indicate the zone of fracture occurs at some places along the low geomagnetic anomaly zones. The surface temperature of the hot spring is 59°C with a constant discharge of about 7 l/s. The hot spring location is connected by fractures to the lower magnetic value zone, which the source of water is coming from the relatively higher elevation of the river surrounding the Rokan intrusion.

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“…The CO6, CO8, and SJ11 sources are peripheral and shallow waters; however, the HCO 3 content is not relatively high. The sources present on steam-heated waters (CO4 and CO12) are characterized by moderate contents of [30].…”

Section: Resultsmentioning

confidence: 99%

“…According to the ternary diagrams, the Coconuco and San Juan sectors present considerable concentrations of SO 4 , Na, Ca, and HCO 3 which indicates the possibility of meteoric water circulating through the faults of the region and the exothermic reactions in the interior generate an increase in the temperature of the fluids [30]. On the other hand, the sources presented a classification of immaturity and the equilibrium clearly shifts towards Mg, which means that the sources acquire Mg with the decrease in temperature [34].…”

Section: Geofluidsmentioning

confidence: 99%

Physical-Chemical Characterization and Mineralogic Analysis of Hydrothermal Systems Located in the Coconuco and the San Juan Sectors in Cauca, Colombia

Torres-Cerón

Acosta-Medina

2019

Geofluids

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Hot springs of the volcanic zones are characterized for having high sulfur content in the form of sulphate and other ions resulting from chemical reactions. Sources with these types of elements are of great interest for the tourism and geothermal industry because of their highlighted properties which include therapeutic treatments, relaxation baths, agricultural applications, and preservation of flora and fauna among others. For these reasons, research oriented to carry out the characterization of these factors is of great importance to determine the availability of places with such characteristics. This work shows the characterization of 17 hot spring sources located in the Coconuco and San Juan sectors (Cauca, Colombia, South America). Water samples were taken in May 2017, and laboratory analyses were carried out by the Water Laboratory at Universidad Nacional de Colombia-Manizales, based on the Standard Methods (APHA-AWWA-WEF). Rock samples were taken in November 2017, and laboratory analyses were carried out by the GMAS+ Laboratory (Bogotá, Colombia). The Piper, Stiff, and ternary (Giggenbach) diagrams were used for the classification of major ions. Mineralogy composition was determined through XRD and XRF. Results indicate that most sources are of the sulphated type according to the anions and of the calcium type according to the cations. In concordance with Giggenbach diagrams, most of the sources are immature waters and, despite their interaction with rocks, they have not achieved the equilibrium. Likewise, these sources are of heated vapor type and, considering that they consist of sulphated acid sources, it is not possible to evaluate the reservoir temperatures from Na/K cations. The low Ca2+/Mg2+ ratio in the sources indicates the lack of direct migration of fluids and the high content of Ca2+ and Mg2+ regarding Na+ and K+, which suggests that fluids possibly are mixed with cold waters rich in Ca2+ and Mg2+. From the mineralogic characterization, it was observed that volcanic rocks are composed of cristobalite and albite with TiO2, Fe2O3, and CaO traces and mineral sulfur. Metals like Cr, considered in this case as contaminants, are found in low concentrations in rocks and are not detected in these waters.

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Geofluids Assessment of the Ayub and Shafa Hot Springs in Kopet-Dagh Zone (NE Iran): An Isotopic Geochemistry Approach

Cited by 12 publications

References 16 publications

Developing Meteoric Water Lines for Iran Based on Air Masses and Moisture Sources

Developing Meteoric Water Lines for Iran Based on Air Masses and Moisture Sources

Integrated geophysical image of the hot spring in Rokan Hulu, Riau, Indonesia

Physical-Chemical Characterization and Mineralogic Analysis of Hydrothermal Systems Located in the Coconuco and the San Juan Sectors in Cauca, Colombia

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