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Papers by kaveh p

Journal of the Geological Society of India

Ecofeminism and Climate Change

Purpose The chemical analysis of wells in the Ardabil area, Ardabil Province NW of Iran, was eval... more Purpose The chemical analysis of wells in the Ardabil area, Ardabil Province NW of Iran, was evaluated to determine the hydrogeochemical processes and ion concentration background in the region. The purpose of this study is to analyze the hydrochemical quality of groundwater in Ardabil aquifer in order to assess the suitability of the waters for different uses. Design/methodology/approach The chemical analysis of 75 water wells in the Ardabil area, was evaluated. Over the entire area, the dominated hydrochemical types are: Na-Cl, Na-HCO3-Cl-Mg, Ca-SO4, Ca-Mg-SO4-Cl and Ca-Mg-HCO3. The abundance of the major ions is as follows: Na+>Ca2+>Mg2+>K+ and SO42–> Cl–>HCO3– and major ion concentrations are below the acceptable level for drinking water. Most of groundwater samples fell in the soft water category. All of groundwaters belong to the excellent category and can be used safely for irrigation. Findings The chemical analysis of 75 water wells in the Ardabil area, Ardabi...

Geology, Ecology, and Landscapes

Alteration is regarded as significant information for mineral exploration. In this study, ASTER i... more Alteration is regarded as significant information for mineral exploration. In this study, ASTER image data are used for recognizing and extracting alteration zones in Varzaghan area, northwestern Iran is located in the northern part of the Cenozoic Urumieh-Dokhtar magmatic arc. This belt was formed by subduction of the Arabian plate beneath central Iran during the Alpine orogeny and hosts many porphyry copper deposits. The principal component analysis (PCA), Minimum Noise Fraction (MNF) and Band Ration TIR and SWIR ASTER bands were employed for hydrothermal alteration zone extractions such as argillic, phyllic and propylitic alterations. The alteration zone that identified from remote sensing were evaluated and compared in detail along with Sungun copper porphyry mine. The results show that the OH−alteration is a main indicator of argillic, phyllic, and propylitic alterations. These alterations are closely related to porphyry copper deposits. Results show that PCA and band ratio methods clearly manifest different altered zones of the region. However, band ratio more effectively shows the alterations. Also, ASTER images provide preliminary mineralogy information and geo-referenced alteration maps at low cost and with high accuracy for reconnaissance porphyry copper mineralization.

Journal of Water and Health

Geochemical and hydrogeochemical studies were conducted to assess the origin and geochemical mech... more Geochemical and hydrogeochemical studies were conducted to assess the origin and geochemical mechanisms driving lead enrichment in groundwaters of semi-arid regions in Central Iran. In this study, 149 water samples were analyzed using inductively coupled plasma mass spectrometry (ICP-MS). Concentrations of Pb and As in about 68% and 27% of the samples, respectively, exceeded WHO guidelines. Analyzing the results of ICP-MS of parental rocks and aquifer sediments shows that unweathered volcanic rocks were the primary source for lead mobilizing to groundwaters.

Carbonates and Evaporites

Modeling Earth Systems and Environment

The groundwater is the only major source of drinking water in central part of Iran. The study was... more The groundwater is the only major source of drinking water in central part of Iran. The study was carried out to locate and decipher hydrogeochemical reactions responsible for elevated concentration of fluoride. In the Kuhbanan basin groundwater samples were collected at 24 sites and analyzed. The concentration of fluoride ranged from 0.05 to 10.8 mg/l in groundwater of study area. Statistical analyses were applied to a subgroup of the dataset to evaluate their usefulness to classify the groundwater samples, and to identify geochemical processes controlling groundwater geochemistry. Groundwater in the study area is mainly saline (Na-Cl type water), and statistical analyses show that weathering of the fluorapatite and silicate minerals is the common source for Fin study area.

Arabian Journal of Geosciences

ABSTRACT In Iran, coal deposits from the upper Triassic-lower Jurassic era are limited to the Tab... more ABSTRACT In Iran, coal deposits from the upper Triassic-lower Jurassic era are limited to the Tabas and Alborz coal basins and three small independent carboniferous regions. One of the coalfields in the Alborz basin is the Abyek coalfield, the focus of our investigation. It is located in the northern mountain ranges of Iran, and we investigate the geochemical behavior of the rare earth elements in it. Five samples were collected and analyzed for trace and rare earth elements (REE) using inductively coupled plasma (ICP). The Abyek area is characterized by very high ash value. The content of total REY (REEs+Y) in the coals varies from 143.19 to 254.39 ppm and ranged 28– 43.83 ppm in argillite. The abundance of light rare earth elements (LREES) is higher relative to heavy rare earth elements (HREEs).

Environmental Earth Sciences

ABSTRACT he chemical analyses of 71 water-supply wells in the Esfadan area of eastern Iran were e... more ABSTRACT he chemical analyses of 71 water-supply wells in the Esfadan area of eastern Iran were evaluated using statistical methods to determine the hydrogeochem- ical processes that control groundwater quality. Ground- water in the study area is mainly saline (Na–Cl type water), and statistical analyses show that there are three subgroups of groundwater quality, whose differences reflect the influences of geology.

Carbonates and Evaporites, 2015

ABSTRACT Hydrochemical investigations were carried out in the Kadkan area, northeastern Iran, to ... more ABSTRACT Hydrochemical investigations were carried out in the Kadkan area, northeastern Iran, to assess the chemical composition of groundwater. A total of 131 groundwater samples were collected and analyzed for major cations and anions. The domination of cations and anions was in the order of Na+>Ca2+>Mg2+>K+ for cations and Cl->SO4 2->HCO3->CO32- in anions. The groundwater is under-saturated with respect to anhydrate, aragonite, calcite, dolomite, gypsum, and CO2. In this investigation, multivariate statistical techniques were used to identify and understand hydrochemical association and processes leading to the variability of groundwater quality. Factor analysis was applied to all groundwater samples and 11 variables. This analysis revealed that three main factors affecting the groundwater chemistry can be distinguished in this plain. Factor 1 includes the major ions in aqueous solution and accounts for 51.68 % of the total variance. Factor 2 accounts for 15.39 % of total variance and includes the parameters pH, Ca, and CO3 in the plain, suggesting that the geology of some parts of the area is primarily limestone. Factor 3 includes the parameters Mgand HCO3 and accounts for 11.63 % of the total variance. These parameters have a geological source. The hydrochemical processes of groundwater in the Kadkan aquifer are mainly influenced by the major ions, degree of dissolution of NaCl-bearing minerals, and geology.

Sustainable Water Resources Management, 2015

Geochemical data from 67 spring locations within the 3780 km 2 , in Jebal-e-Barez area, south eas... more Geochemical data from 67 spring locations within the 3780 km 2 , in Jebal-e-Barez area, south eastern of Iran, were analyzed with the purpose of developing a suitable regional geochemical exploration method for Cu-Au ± Mo mineralization in such potential area. Statistical data analyses, graphical methods, and geochemical characteristics of waters and mineral saturation indices were used to identify mineralization potential regions. Hydrogeochemical data of samples suggested that the groundwater is mostly Ca ? Mg ? HCO 3 type (67.16 %). The sulfate-type waters are mainly clustered around the mineralization occurrences. The groundwaters have low concentrations of base metal and Cu, Au, Mo and SO 4 can be used as direct indicators of Cu mineralization in study area. Ni is an indicator of Cu mineralization and travertine springs distribution impress the hydrogeochemical evaluation. On this basis, it is concluded hydrogeochemical exploration can be used as an effective regional exploration method.

Environmental Nanotechnology, Monitoring & Management, 2014

About 478 coal and coaly shale samples were collected to study the selenium content and distribut... more About 478 coal and coaly shale samples were collected to study the selenium content and distribution pattern in Iranian coals in different coal basins. Most Iranian coals have selenium coals lower than 31.5 ppm. The average Se content in Iranian coals is about 1.2 ppm, close to that in the world. The Ksashan coal basin has lowest levels of average Se (0.9 ppm) accumulation. The Se concentration in Iranian coals is influenced by metamorphism and tectonic conditions. The highest concentration of Se in coal-bearing deposits is at Kalishur (31.5 ppm) in Tabas coal basin.

Carbonates and Evaporites, 2015

Arabian Journal of Geosciences, 2015

Earth Science Informatics, 2014

ABSTRACT In this article, by using AHP-TOPSIS technique we propose a new method for mineral poten... more ABSTRACT In this article, by using AHP-TOPSIS technique we propose a new method for mineral potential mapping that commonly used to other science. AHP and TOPSIS are prac- tical and useful techniques respectively for determining the relative importance of the criteria and ranking - selection of a number of externally determined alternatives through distance measures. AHP method employed to determine the impor- tance weights of evaluation criteria, then TOPSIS technique use for selection and ranking of study area. We used AHP- TOPSIS and GIS to provid potential maps for porphyry cop- per mineralization on the basis of criteria derived from geo- logical and geochemical controls, and remote sensing data including alterations and faults in Siahrud area in North West Iran. The results demonstrate the acceptable outcomes for copper porphyry exploration

Environmental Earth Sciences, 2012

... Basin, East Azarbaijan Province, northwestern Iran Kaveh Pazand • Ardeshir Hezarkhani • Youse... more ... Basin, East Azarbaijan Province, northwestern Iran Kaveh Pazand • Ardeshir Hezarkhani • Yousef Ghanbari • Nasrin Aghavali ... Water shortages have become an increasingly serious problem in Iran, especially in the arid and semi-arid regions of western Iran (Jalali 2006). ...

Applied Geomatics, 2013

In this paper, we describe fuzzy models for predictive porphyry Cu potential mapping: (1) a knowl... more In this paper, we describe fuzzy models for predictive porphyry Cu potential mapping: (1) a knowledgedriven fuzzy model that uses a logistic membership function for deriving fuzzy membership values of input evidential maps and (2) a data-driven model, which uses a piece-wise linear function based on quantified spatial associations between a set of evidential evidence features and a set of known mineral deposits for deriving fuzzy membership values of input evidential maps. The mineral favorability maps for porphyry Cu exploration were produced in a geographic information systems environment and took into account three sources of data and information: (1) satellite images; (2) a geochemical survey; (3) geo-structural mapping. These data and information were integrated through a conceptual model developed for porphyry Cu mines and occurrences in the studied region. Both favorability maps highlighted the known porphyry Cu occurrences and validated the approach, but the data-driven method shows better results than the knowledge-driven method.

Environmental Earth Sciences, 2011

Environmental Earth Sciences, 2011

... Associated with correlation coefficient is r, the multiple correlations, which is the percent... more ... Associated with correlation coefficient is r, the multiple correlations, which is the percentage of variance Fig. 5 Spatial distributions of Ca2?, Mg2?, K? and Na? ... Page 8. values of r indicate a positive relationship while negative values indicate an inverse relationship (Aris et al. ...

Environmental Earth Sciences, 2012

Your article is protected by copyright and all rights are held exclusively by Springer-Verlag Ber... more Your article is protected by copyright and all rights are held exclusively by Springer-Verlag Berlin Heidelberg. This e-offprint is for personal use only and shall not be selfarchived in electronic repositories. If you wish to self-archive your work, please use the accepted author's version for posting to your own website or your institution's repository. You may further deposit the accepted author's version on a funder's repository at a funder's request, provided it is not made publicly available until 12 months after publication.

Journal of the Geological Society of India

Ecofeminism and Climate Change

Purpose The chemical analysis of wells in the Ardabil area, Ardabil Province NW of Iran, was eval... more Purpose The chemical analysis of wells in the Ardabil area, Ardabil Province NW of Iran, was evaluated to determine the hydrogeochemical processes and ion concentration background in the region. The purpose of this study is to analyze the hydrochemical quality of groundwater in Ardabil aquifer in order to assess the suitability of the waters for different uses. Design/methodology/approach The chemical analysis of 75 water wells in the Ardabil area, was evaluated. Over the entire area, the dominated hydrochemical types are: Na-Cl, Na-HCO3-Cl-Mg, Ca-SO4, Ca-Mg-SO4-Cl and Ca-Mg-HCO3. The abundance of the major ions is as follows: Na+>Ca2+>Mg2+>K+ and SO42–> Cl–>HCO3– and major ion concentrations are below the acceptable level for drinking water. Most of groundwater samples fell in the soft water category. All of groundwaters belong to the excellent category and can be used safely for irrigation. Findings The chemical analysis of 75 water wells in the Ardabil area, Ardabi...

Geology, Ecology, and Landscapes

Alteration is regarded as significant information for mineral exploration. In this study, ASTER i... more Alteration is regarded as significant information for mineral exploration. In this study, ASTER image data are used for recognizing and extracting alteration zones in Varzaghan area, northwestern Iran is located in the northern part of the Cenozoic Urumieh-Dokhtar magmatic arc. This belt was formed by subduction of the Arabian plate beneath central Iran during the Alpine orogeny and hosts many porphyry copper deposits. The principal component analysis (PCA), Minimum Noise Fraction (MNF) and Band Ration TIR and SWIR ASTER bands were employed for hydrothermal alteration zone extractions such as argillic, phyllic and propylitic alterations. The alteration zone that identified from remote sensing were evaluated and compared in detail along with Sungun copper porphyry mine. The results show that the OH−alteration is a main indicator of argillic, phyllic, and propylitic alterations. These alterations are closely related to porphyry copper deposits. Results show that PCA and band ratio methods clearly manifest different altered zones of the region. However, band ratio more effectively shows the alterations. Also, ASTER images provide preliminary mineralogy information and geo-referenced alteration maps at low cost and with high accuracy for reconnaissance porphyry copper mineralization.

Journal of Water and Health

Geochemical and hydrogeochemical studies were conducted to assess the origin and geochemical mech... more Geochemical and hydrogeochemical studies were conducted to assess the origin and geochemical mechanisms driving lead enrichment in groundwaters of semi-arid regions in Central Iran. In this study, 149 water samples were analyzed using inductively coupled plasma mass spectrometry (ICP-MS). Concentrations of Pb and As in about 68% and 27% of the samples, respectively, exceeded WHO guidelines. Analyzing the results of ICP-MS of parental rocks and aquifer sediments shows that unweathered volcanic rocks were the primary source for lead mobilizing to groundwaters.

Carbonates and Evaporites

Modeling Earth Systems and Environment

The groundwater is the only major source of drinking water in central part of Iran. The study was... more The groundwater is the only major source of drinking water in central part of Iran. The study was carried out to locate and decipher hydrogeochemical reactions responsible for elevated concentration of fluoride. In the Kuhbanan basin groundwater samples were collected at 24 sites and analyzed. The concentration of fluoride ranged from 0.05 to 10.8 mg/l in groundwater of study area. Statistical analyses were applied to a subgroup of the dataset to evaluate their usefulness to classify the groundwater samples, and to identify geochemical processes controlling groundwater geochemistry. Groundwater in the study area is mainly saline (Na-Cl type water), and statistical analyses show that weathering of the fluorapatite and silicate minerals is the common source for Fin study area.

Arabian Journal of Geosciences

ABSTRACT In Iran, coal deposits from the upper Triassic-lower Jurassic era are limited to the Tab... more ABSTRACT In Iran, coal deposits from the upper Triassic-lower Jurassic era are limited to the Tabas and Alborz coal basins and three small independent carboniferous regions. One of the coalfields in the Alborz basin is the Abyek coalfield, the focus of our investigation. It is located in the northern mountain ranges of Iran, and we investigate the geochemical behavior of the rare earth elements in it. Five samples were collected and analyzed for trace and rare earth elements (REE) using inductively coupled plasma (ICP). The Abyek area is characterized by very high ash value. The content of total REY (REEs+Y) in the coals varies from 143.19 to 254.39 ppm and ranged 28– 43.83 ppm in argillite. The abundance of light rare earth elements (LREES) is higher relative to heavy rare earth elements (HREEs).

Environmental Earth Sciences

ABSTRACT he chemical analyses of 71 water-supply wells in the Esfadan area of eastern Iran were e... more ABSTRACT he chemical analyses of 71 water-supply wells in the Esfadan area of eastern Iran were evaluated using statistical methods to determine the hydrogeochem- ical processes that control groundwater quality. Ground- water in the study area is mainly saline (Na–Cl type water), and statistical analyses show that there are three subgroups of groundwater quality, whose differences reflect the influences of geology.

Carbonates and Evaporites, 2015

ABSTRACT Hydrochemical investigations were carried out in the Kadkan area, northeastern Iran, to ... more ABSTRACT Hydrochemical investigations were carried out in the Kadkan area, northeastern Iran, to assess the chemical composition of groundwater. A total of 131 groundwater samples were collected and analyzed for major cations and anions. The domination of cations and anions was in the order of Na+>Ca2+>Mg2+>K+ for cations and Cl->SO4 2->HCO3->CO32- in anions. The groundwater is under-saturated with respect to anhydrate, aragonite, calcite, dolomite, gypsum, and CO2. In this investigation, multivariate statistical techniques were used to identify and understand hydrochemical association and processes leading to the variability of groundwater quality. Factor analysis was applied to all groundwater samples and 11 variables. This analysis revealed that three main factors affecting the groundwater chemistry can be distinguished in this plain. Factor 1 includes the major ions in aqueous solution and accounts for 51.68 % of the total variance. Factor 2 accounts for 15.39 % of total variance and includes the parameters pH, Ca, and CO3 in the plain, suggesting that the geology of some parts of the area is primarily limestone. Factor 3 includes the parameters Mgand HCO3 and accounts for 11.63 % of the total variance. These parameters have a geological source. The hydrochemical processes of groundwater in the Kadkan aquifer are mainly influenced by the major ions, degree of dissolution of NaCl-bearing minerals, and geology.

Sustainable Water Resources Management, 2015

Geochemical data from 67 spring locations within the 3780 km 2 , in Jebal-e-Barez area, south eas... more Geochemical data from 67 spring locations within the 3780 km 2 , in Jebal-e-Barez area, south eastern of Iran, were analyzed with the purpose of developing a suitable regional geochemical exploration method for Cu-Au ± Mo mineralization in such potential area. Statistical data analyses, graphical methods, and geochemical characteristics of waters and mineral saturation indices were used to identify mineralization potential regions. Hydrogeochemical data of samples suggested that the groundwater is mostly Ca ? Mg ? HCO 3 type (67.16 %). The sulfate-type waters are mainly clustered around the mineralization occurrences. The groundwaters have low concentrations of base metal and Cu, Au, Mo and SO 4 can be used as direct indicators of Cu mineralization in study area. Ni is an indicator of Cu mineralization and travertine springs distribution impress the hydrogeochemical evaluation. On this basis, it is concluded hydrogeochemical exploration can be used as an effective regional exploration method.

Environmental Nanotechnology, Monitoring & Management, 2014

About 478 coal and coaly shale samples were collected to study the selenium content and distribut... more About 478 coal and coaly shale samples were collected to study the selenium content and distribution pattern in Iranian coals in different coal basins. Most Iranian coals have selenium coals lower than 31.5 ppm. The average Se content in Iranian coals is about 1.2 ppm, close to that in the world. The Ksashan coal basin has lowest levels of average Se (0.9 ppm) accumulation. The Se concentration in Iranian coals is influenced by metamorphism and tectonic conditions. The highest concentration of Se in coal-bearing deposits is at Kalishur (31.5 ppm) in Tabas coal basin.

Carbonates and Evaporites, 2015

Arabian Journal of Geosciences, 2015

Earth Science Informatics, 2014

ABSTRACT In this article, by using AHP-TOPSIS technique we propose a new method for mineral poten... more ABSTRACT In this article, by using AHP-TOPSIS technique we propose a new method for mineral potential mapping that commonly used to other science. AHP and TOPSIS are prac- tical and useful techniques respectively for determining the relative importance of the criteria and ranking - selection of a number of externally determined alternatives through distance measures. AHP method employed to determine the impor- tance weights of evaluation criteria, then TOPSIS technique use for selection and ranking of study area. We used AHP- TOPSIS and GIS to provid potential maps for porphyry cop- per mineralization on the basis of criteria derived from geo- logical and geochemical controls, and remote sensing data including alterations and faults in Siahrud area in North West Iran. The results demonstrate the acceptable outcomes for copper porphyry exploration

Environmental Earth Sciences, 2012

... Basin, East Azarbaijan Province, northwestern Iran Kaveh Pazand • Ardeshir Hezarkhani • Youse... more ... Basin, East Azarbaijan Province, northwestern Iran Kaveh Pazand • Ardeshir Hezarkhani • Yousef Ghanbari • Nasrin Aghavali ... Water shortages have become an increasingly serious problem in Iran, especially in the arid and semi-arid regions of western Iran (Jalali 2006). ...

Applied Geomatics, 2013

In this paper, we describe fuzzy models for predictive porphyry Cu potential mapping: (1) a knowl... more In this paper, we describe fuzzy models for predictive porphyry Cu potential mapping: (1) a knowledgedriven fuzzy model that uses a logistic membership function for deriving fuzzy membership values of input evidential maps and (2) a data-driven model, which uses a piece-wise linear function based on quantified spatial associations between a set of evidential evidence features and a set of known mineral deposits for deriving fuzzy membership values of input evidential maps. The mineral favorability maps for porphyry Cu exploration were produced in a geographic information systems environment and took into account three sources of data and information: (1) satellite images; (2) a geochemical survey; (3) geo-structural mapping. These data and information were integrated through a conceptual model developed for porphyry Cu mines and occurrences in the studied region. Both favorability maps highlighted the known porphyry Cu occurrences and validated the approach, but the data-driven method shows better results than the knowledge-driven method.

Environmental Earth Sciences, 2011

Environmental Earth Sciences, 2011

... Associated with correlation coefficient is r, the multiple correlations, which is the percent... more ... Associated with correlation coefficient is r, the multiple correlations, which is the percentage of variance Fig. 5 Spatial distributions of Ca2?, Mg2?, K? and Na? ... Page 8. values of r indicate a positive relationship while negative values indicate an inverse relationship (Aris et al. ...

Environmental Earth Sciences, 2012

Your article is protected by copyright and all rights are held exclusively by Springer-Verlag Ber... more Your article is protected by copyright and all rights are held exclusively by Springer-Verlag Berlin Heidelberg. This e-offprint is for personal use only and shall not be selfarchived in electronic repositories. If you wish to self-archive your work, please use the accepted author's version for posting to your own website or your institution's repository. You may further deposit the accepted author's version on a funder's repository at a funder's request, provided it is not made publicly available until 12 months after publication.