Geochemical characteristics of the Arabshah kaolin deposit, Takab geothermal field, NW Iran

2016 ◽  
Vol 9 (9) ◽  
Author(s):  
Ali Abedini ◽  
Ali Asghar Calagari
Keyword(s):  
Geothermal Field ◽  
Geochemical Characteristics ◽  
Nw Iran ◽  
Kaolin Deposit

Geochemical characteristics of igneous host rocks of Lubin-Zardeh Au-Cu deposit, NW Iran

2020 ◽  
Vol 122 ◽  
pp. 103496 ◽  
Author(s):  
H. Zamanian ◽  
S. Rahmani ◽  
R. Zareisahamieh ◽  
A. Pazoki ◽  
X.Y. Yang
Keyword(s):  
Geochemical Characteristics ◽  
Nw Iran ◽  
Host Rocks

Geochemistry of geothermal fluids in Moil Valley geothermal field, NW Iran

2020 ◽  
Author(s):  
Rahim Masoumi ◽  
Farahnaz Bakhshandeh GharehTapeh ◽  
Bahman Bakhshandeh GharehTapeh
Keyword(s):  
Hot Springs ◽  
Ph Value ◽  
Correlation Coefficients ◽  
Geothermal Field ◽  
Maximum Temperature ◽  
Main Role ◽  
Nw Iran ◽  
Geothermal Fluids ◽  
D Values ◽  
Sabalan Volcano

<p>The Moil valley geothermal field is located in the northwest of Sabalan volcano in the northwest of Iran. The geothermal activities attributed to the Sabalan volcano was intensified during Plio-Quaternary time and the manifestations of these activities are observable around the volcano especially in the northwestern corner. The hot springs, surficial manifestations, and extracted fluids from drilled wells represent the whole composition of underground reservoir fluids. The thermal measurement of fluids show wide ranges of temperature of fluids where the hottest spring show 89˚C and the fluids obtained from well samplings show maximum temperature of 202˚C.  </p><p>The reservoir temperature estimations based on different geothermometers show 250˚C for the reservoir. The interpretation of carried out chemical analyses represent Na-K-Cl dominant composition for the studies samples taken from hot springs and drilled wells. All of sampling stations show pH ranges of 4.2-7.6 which reveal acidic to neutral pH range. The variation of TDS for the studied samples ranges between 209 to 320 mg/L. The evaluation of correlation coefficients between main parameters gives notable results. The positive and good correlation coefficient between temperature and Cl is obvious in most of samples and consequently the Cl content of samples increases in high temperature samples.        </p><p>Boron as a key constituent in geothermal fluids show variable concentrations in Moil Valley geothermal fluids and shows 0.28-35 mg/L Boron content in the studied samples. The correlation between Boron and pH for the studied samples is positive. This correlation displays the highest concentrations in pH=7. The main Boron species in this pH value is B(OH)<sub>3</sub> which is more stable comparing to the other Boron phases.  </p><p>The stable isotope analyses of the studied samples show -12 to -9.1‰ for δ<sup>18</sup>O and -71.3 to -77.6‰ for δD. The interpretation of obtained δ<sup>18</sup>O and δD values represents the main role of meteoric waters in reservoir fluids of Moil Valley geothermal field. Magmatic waters show negligible share of the reservoir fluids.      </p><p>The Tritium analyses for the studied samples show 0.1 to 41.7 TU amounts. The evaluation of obtained Tritium contents reveals the circulation of young waters inside the reservoir and considering to the δD/δ<sup>18</sup>O ratios, it is most likely that the recharge zones of the reservoir are situated in close distance and there are evidences of mixing with meteoric waters.</p>

scholarly journals Geochemical and industrial properties of the Kejal kaolin deposit, NW Iran

2020 ◽  
Vol 29 (2) ◽  
pp. 325-346 ◽  
Author(s):  
Tohid NOURI ◽  
Rahim MASOUMI
Keyword(s):  
Nw Iran ◽  
Kaolin Deposit

Geochemical characteristics of the karst-type bauxites: an example from the Kanirash deposit, NW Iran

2019 ◽  
Vol 12 (15) ◽  
Author(s):  
Ali Abedini ◽  
Masoud Habibi Mehr ◽  
Maryam Khosravi ◽  
Ali Asghar Calagari
Keyword(s):  
Geochemical Characteristics ◽  
Nw Iran

scholarly journals Mineralogy and geochemistry of the Avin kaolin deposit, northeast of Mianeh, East-Azarbaidjan Province, NW Iran

2020 ◽  
Vol 28 (3) ◽  
pp. 633-644
Author(s):  
وحیده Alipour ◽  
علی Abedini ◽  
صمد Alipour ◽  
◽  
◽  
...  
Keyword(s):  
Nw Iran ◽  
Kaolin Deposit

Three-dimensional conductivity model of the Sabalan geothermal field, NW Iran, interpreted from magnetotelluric data

2014 ◽  
Vol 8 (5) ◽  
pp. 3149-3157
Author(s):  
Behrooz Oskooi ◽  
Gholam Abbas Fanaee Kheirabad ◽  
Banafsheh Habibian Dehkordi ◽  
Gregory Nieuwenhuis
Keyword(s):  
Three Dimensional ◽  
Geothermal Field ◽  
Magnetotelluric Data ◽  
Nw Iran ◽  
Conductivity Model

Review State of Geothermal Energy in Iran

2012 ◽  
Vol 463-464 ◽  
pp. 985-989
Author(s):  
Mohammad Reza Asadi ◽  
Mahdi Moharrampour ◽  
Masoumeh Shir Ali
Keyword(s):  
Electric Power ◽  
Geothermal Energy ◽  
Resource Assessment ◽  
Environmental Safety ◽  
Geothermal Field ◽  
Renewable Energies ◽  
Nw Iran ◽  
Geothermal Potential ◽  
Review State ◽  
Deep Exploration

International increasing of petroleum and living cost and population, environmental problems, diminishingly fossil sources and world trend to energy technology respect to environmental safety and renewable energies are some reasons for most countries to use and investigate on renewable energies. In this regard this paper presents the state of geothermal energy in Iran. The geothermal activities in Iran started by Ministry Energy of Iran in 1975, research and survey indicate that Iran has substantial geothermal potential, specifically in the Sabalan Sahand (NW-Iran) and Damavand (N-Iran) region that are considerate prospects for electric power generation and direct uses. The Electric Power Research Center (EPRC) and Renewable Energy Organization of Iran (SUNA) were established to justify priorities of above mentioned region. As a result: Meshkinshahr and Sarein area in Sabalan region were proposed for electric and direct use respectively. Three deep exploration wells and two shallow reinjection wells were drilled at the Meshkinshahr geothermal field during 2003/2004 following detailed geo-scientific surface surveys. A preliminary resource assessment confirms the presence of a medium grade geothermal resource with temperatures within the drilled area up to 2500C and whit at least 5 Km2 of commercially exploitable resource available. SUNA is now moving forward to construct and commission the first geothermal power development both in Iran and the Middle East.

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