Structural Model Based on Fractures Studies in the Zar Mehr Gold Deposit
Shadi
Ansari Jafari
Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad.
author
Behnam
Rahimi
Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad.
author
Farzin
Ghaemi
Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad.
author
Alireza
Mazloumi Bajestani
Department of Geology, Faculty of Sciences, Payame Noor University of Mashhad.
author
text
article
2015
per
The Kuh-e-Zar gold deposit is located at north east of Iran in 33 km of the Torbate-e-Heydariyeh and in north boarder of Central Iran zone.This area is generally covered by Tertiary volcanic and plutonic rocks. Mineralization can be seen in the form of veins and veinlets forms open space filling texture of shear parts.The Kuh-e-Zar exploration site is at a shear zone of Doruneh fault. So Majority of geological evolutions and structural features are affected by Doruneh fault activity.Due to exploration and mining, faults are exposed and field data gather in the vicinity of these faults.The results of field study,Win tensor data analysis and GIS satellite image analysis indicate that Zarmehr ore formed in a Riedel shear system. The results of this study indicate that a series of structures provide a proper space to deposit mineralized fluids. Fractures are the most important controlles of fluid flow in ore deposit. So, identify these structures provide the most valuable information about mineral exploration.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
1
10
https://aag.scu.ac.ir/article_11820_9cb09d94e1161ec4998ddfced7a3443e.pdf
dx.doi.org/10.22055/aag.2015.11820
Contamination Assesment of Heavy Metals in Karoon River Surface Sediments,
Ahvaz City
Fatemeh
Moslem
Department Of geology, Shahid Chamran University Of Ahvaz
author
Fatemeh
Rastmanesh
Department Of geology, Shahid Chamran University Of Ahvaz
author
Alireza
Zarasvandi
Department Of geology, Shahid Chamran University Of Ahvaz
author
text
article
2015
per
Most heavy metals have a negative impact on humans and the environment. Thus, evaluation of metals concentration in the environment allows taking measures to improve the quality of life and the environmental conditions. In order to assess Karun River sediments contamination with heavy metals, 24 samples of surface sediments (0-5 cm) were collected.Concentration of heavy metals (chromium, copper, zinc, lead, arsenic, nickel, manganese and iron) were determined by ICP-MS methods. In order to evaluate heavy metal contamination in sediments, contamination factor (Cf) and the degree of contamination (Cd) were calculated. Sediment Quality Guidelines (SQGs) were used to determine the ecological risk of heavy metals. The metals concentrations in surface sediments varied from12.75 to 47.25ppm for Cu, 3.96 to 45.24 ppm for Pb, 30.9 to 151.7 ppm for Zn, 50.8 to 99.7 ppm for Ni,2.6 to 4.9 ppm for As,35.7 to 59.3 ppm for Cr, 382 to 493 ppm for Mn and 13200 to 20000 ppm for Fe.The results indicated that the Concentration of Ni in all sampling sites exceeded the probable effect level (PEL) and there were 92% for Cr out of all sampling sites exceeding the threshold effect level (TEL). The highest value of Cf was obtained for Zn and highest degree of contamination for District Newsayt (station 16). Statistical analysis showed that copper, zinc, lead, are correlated with OC and probably originate from domestic sewage and industrial waste. In contrast, chromium, nickel and arsenic, are correlated with iron and manganese, and probably originate from natural or agricultural resources. Results indicate moderate pollution of river sediments.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
11
22
https://aag.scu.ac.ir/article_11821_54094aaf2f8273e1e17194826371f42a.pdf
dx.doi.org/10.22055/aag.2015.11821
Evaluation of the Lour-Andimeshk Aquifer and the Dez-River Interaction: Using Modflow
Laleh
Nozarpour
Department of geology, Faculty of Earth scinces, Shahid Chamran University Ahvaz, iran
author
Manouchehr
Chitsazan
Department of geology, Faculty of Earth scinces, Shahid Chamran University Ahvaz, iran
author
Arash
Nadri
Department of geology, Faculty of Earth scinces, Shahid Chamran University Ahvaz, iran
author
Masoumeh
Farhadimanesh
Department of geology, Faculty of Earth scinces, Shahid Chamran University Ahvaz, iran
author
text
article
2015
per
The proper management of water resources requires an understanding of the relationship between the surface water and groundwater resources. To simulate interaction between Lour-Andimeshk aquifer and Dez-River, modflow model was used. First, groundwater flow was simulated in steady state. Then, the aquifer-river system calibrated in unsteady state in the period of September 2009 to August 2010 and verified in the period of six months. The interaction of the aquifer and the river, considered and simulated based on the three scenarios consisting of: the lowest possible river water flow conditions and the interaction in the drought and high flow conditions. The river reach in the study area divided into five zones and the interaction in the scenarios considered using Zone Budget module. The results showed that the highest river recharge belongs to the Zones 2, 3 and 1. We concluded that the Dez-River recharges the Lour-Andimeshk aquifer in most parts of the river reach.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
23
36
https://aag.scu.ac.ir/article_11822_751b0d3c723ef1430a99ef7e57fd5dd6.pdf
dx.doi.org/10.22055/aag.2015.11822
Compparison of Organic Geochemical Data in Mobarak Formation (Eastern Alborz) in Touyeroudbar, Labnessar and Mighan Regions
Nader
Dabestani
School of Earth Sciences , Damghan University, Damghan
author
Ali Akbar
Hasan Nezhad
School of Earth Sciences , Damghan University.
author
Mahmoud
Memariani
Center for Exploration and Production Studies and Research, Research Institute of Petroleum Industry (RIPI), Tehran.
author
Hosein
Mosaddegh
School of Earth Sciences , Kharazmi University, Tehran
author
text
article
2015
per
In the present work 47 surface samples of the Touyerodbar, Labnessar and Mighan sections have been pyrolysed by Rock-Eval2.Results indicated that Mobarak Formation in three sections and especially in Touyerodbar and Mighan regions have high TOC and Tmax values , has been hydrocarbon generation potential. The Mobarak Formation in Touyerodbar and Mighan sections with Tmax up 487°C and 498°C not only crossed the oil window but also have reached the wet gas generating stage. TOC value with avarage of 1.22 W.t% for Touyerodbar samples and 1.06 W.t% for Labnessar samples and 1.31 W.t% for Mighan samples obtained and lower value of S2 can this Formation classified as poor reservoir rock. Evidences indicates that the kerogen of Mobarak Formation is type III and limited amount of type II/III .
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
37
47
https://aag.scu.ac.ir/article_11823_3d4b6cea838622f520b5da4b4978438a.pdf
dx.doi.org/10.22055/aag.2015.11823
Determination of Hydrocarbon Contaminations and Investigation on Bioremediation Potential of Aquifer in the Site at Tabriz Petrochemical - Refinery Complex.
Fatemeh
Safari
Department of Earth sciences, University of Tabriz
author
Abdolreza
Vaezi
Department of Earth sciences, University of Tabriz
author
Ebrahim
Asghari Kalajahi
Department of Earth sciences, University of Tabriz
author
text
article
2015
per
Tabriz refinery and petrochemical complex deal with hazardous contaminants and has the leakage potential of hydrocarbon contaminants to the environment. When aquifer contaminated by hydrocarbon contaminant, one of the main questions will be that if it can be remediated by the aquifer?This research investigates on the potential of the aquifer of area to attenuate the hydrocarbon contamination.So,some samples collected from groundwater and analyzed for some chemical parameters, major ions, heavy metals and nutrients. Evaluation of contaminant biodegradability by bacteria in aerobic and anaerobic conditions showed that the aquifer conditions for bioremediation of contaminants with aerobic procedure is quite suitable and in order to remediate the contaminated aquifer, monitored natural attenuation will be an effective method to remediate the light hydrocarbons.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
48
58
https://aag.scu.ac.ir/article_11824_b11097c7afe2673630c79d00caa41ee1.pdf
dx.doi.org/10.22055/aag.2015.11824
Mineralization and Fluid Inclusion Studies of the Khanlogh Iron Oxide-Apatite Deposit, Northeast of Iran
Azadeh
Malakzadeh Shafaroudi
Research Center for Ore Deposit of Eastern Iran, Ferdowsi University of Mashhad, Iran
author
Mohammad Hasan
Karimpour
Research Center for Ore Deposit of Eastern Iran, Ferdowsi University of Mashhad, Iran
author
text
article
2015
per
The Khanlogh iron oxide-apatite deposit is located in northwest of Nyshabour within the eastern part of Quchan-Sabzevar magmatic belt. It is hosted in Oligocene quartzmonzy odiorite and granodiorite intrusions. Mineralization occurs as vein, veinlets, and minor berrecia. Mineralogy is magnetite and apatite associated with calcite, quartz, epidote, pyroxene, and chlorite. Based on fluid inclusion studies in apatite, two types of fluid have role in formation of deposit: 1) high-temperature and high-salinity fluid with magmatic nature and 2) moderate-temperature and low-salinity NaCl-, MgCl2-, and CaCl2-bearing fluid. The mixing of hot and brine magmatic ore fluid with cold and low salinity fluid associated with boiling can be casued elements deposition. The deposit is derived from a magmatic-hydrothermal source and is related to Tertiary magmatic activity resulted from subduction of the Sabzevar Neo-Tethyan oceanic lithosphere beneath the Turan plate. Knowledge of the Khanlogh magnetite-apatite deposit, which is the first explorated Kiruna-type mineralization in northeast of Iran, is positive step for exploration of this type of deposit in NE Iran.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
59
71
https://aag.scu.ac.ir/article_11825_4484c9ba50efb7e9b05d4b804c044d2e.pdf
dx.doi.org/10.22055/aag.2015.11825
Mineralization and Formation of the Khan-e Sourmeh Pb-Zn Deposit (West of Isfahan) Based on Mineralogy, Geochemistry and Fluid Inclusion Evidences.
Zahra
Karimzadeh
Department of Geology, Kharazmi University of Tehran
author
Behzad
Mehrabi
Department of Geology, Kharazmi University of Tehran
author
Kamaledin
Bazargani-Guilani
School of Geology, University College of Science, University of Tehran
author
text
article
2015
per
The Khan-e Sourmeh Pb-Zn deposit is located in 40 Km west of Isfahan, in the lower Cretaceous carbonate rocks. Hypogene minerals include galena, sphalerite, pyrite, tennantite, chalcopyrite, and supergene minerals are cerrusite, angelsite, covelite and malachite.Geochemical studies indicate that main source of the metals was the lower Cretaceous carbonate layer with contribution from the upper Triassic shale. Microthermometry studies, indicate homogenization temperature of 210o to 240 oC and salinity of 7 to 8 wt% NaCl equivalent. Considering types of host rock, hypogene and supergene minerals, salinity and homogenization temperature of fluid inclusions, the khan-e Sourmeh Pb-Zn deposit is similar to MVT deposits with carbonate host rock. In Khan-e Sourmeh deposit, hydrothermal fluids after leaching the metals from Triassic shale layers and Cretaceous carbonate sequences, ascended through deep faults and mixed with connate and meteoric waters causing Pb-Zn deposition in fault zones. The result of this study help to find Pb-Zn minerals occurrence in lower depth of mine.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
72
84
https://aag.scu.ac.ir/article_11826_e9a4c59567f00ec92aa99ed8ab1b036e.pdf
dx.doi.org/10.22055/aag.2015.11826
Probable Effect of Heavy Metals in Waste Water of Non -Metallic Industries on Groundwater Quality: Using Statistical Methods in Yazd-Ardakan Plain.
Hadi
Zarei Mahmoudabadi
Environmental Engineering Department, Agriculture and Natural Resources College,
Islamic Azad University Maybod Branch
author
text
article
2015
per
In this investigation 10 samples from Tile and Ceramic industries and wells nearby to industries discharge sites were collected. Concentration of Cr, Cd, Fe, Pb and Zn were measured and statistical interpretation based on variance, T-test, correlation coefficient and factor analysis was carried out. The industries waste water reflected higher concentration compare to groundwater. The Cd accumulation in well No 1 and Pb in all 5 wells exceeds acceptable limit which can affect groundwater quality. A good correlation coefficient exists among concentration of elements in groundwater, while it is not evident in waste water trace elements. The factor analysis depicted three main variance including Fe, Pb and Zn.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
3
no.
2015
85
93
https://aag.scu.ac.ir/article_11827_d2defd2a5f021e7985530f3b110cbc8d.pdf
dx.doi.org/10.22055/aag.2015.11827