Geology and petrology of intrusive rocks: Eastern Najmabad, Gonabad
Mohammad Hsan
Karimpour
Department of Geology, Ferdowsi University of Mashhad, Iran
author
Mehrab
Moradi
Department of Geology, Ferdowsi University of Mashhad, Iran
author
Ehsan
Salati
Department of Geology, Ferdowsi University of Mashhad, Iran
author
text
article
2011
per
The study area is located in 15 Km southeast of Gonabad. Regional metamorphism (Jurassic-Cretaceous orogeny) has turned shale and sandstone of Jurassic into slate and quartzite. Slates are metamorphased into different schists around the contact of granodiorite. Biotite granodiorite porphyry batholith intruded Jurassic slate and quartzite with east-west trending. Based on mineralogy and low values of magnetic susceptibility [(5 to 11) × 10-5 SI], therefore, it is classified as belonging to the ilmenite-series of reduced type granitoids (S-type granitoid). Chemically, biotite granodiorite is met-aluminous, and show enrichment in LILE = Rb, Ba, Zr, Th, Hf, K and REE = Ce, Sm and depletion in Sr, P and Ti. Biotite granodiorite is characterized by medium light rare earth element (LREE) enrichment and less low heavy REE (HREE). Based on REE content and low (La/Yb)n = 7-11.5, magma originated from continental crust. Hornblende monzonite porphyry, hornblende biotite monzonite porphyry and biotite monzonite porphyry which are younger than granodiorite are identified. Based on mineralogy and high values of magnetic susceptibility [(>500) × 10-5 SI], therefore it is classified as belonging to the magnetite-series of oxidant type granitoids (I-type granitoids). Monzonite porphyries are characterized by medium light rare earth element (LREE) enrichment and high low heavy REE (HREE). Based on REE content and (La/Yb)n= 9-64, magma did not originate from continental crust. Alteration zones associated with granodiorite are sericite, propylitic, silicified, argillic and tourmaline. Based on geology, geochemistry, alteration zoning and magnetic susceptibility, biotite granodiorite has potential for W-Au-Sn mineralization.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
v.
1
no.
2011
1
122
https://aag.scu.ac.ir/article_11529_b7730be51a93408b53026e63cf6f46bb.pdf
Physico - chemical evolution of hydrothermal fluid at Sara (Parkam) porphyry copper deposit, Kerman Province
Hakimeh
Mohammadilaghab
Department of Geology, Damghan university, Damghan, Iran
author
Nader
Taghipour
Department of Geology, Damghan university, Damghan, Iran
author
text
article
2011
per
Abstract
The Saraporphyry copper deposit is located in Kerman and 35 Km northern of Shahr–Babak. This deposit is hosted by Eocene volcanic rocks situated in the Urmia - Dokhtar magmatic belt. This deposit is hosted by volcanic rocks with Eocene age. Mineralization of copper and molybdenum is associated with emplacement of diorite and quartz diorite intrusives with Miocene age. Based on petrographical studies eight types of fluid inclusions including polyphase brine inclusions, opaque-bearing brine inclusions, simple brine inclusions, opaque-bearing vapor-rich inclusions, vapor-rich inclusions, vapor inclusions, opaque-bearing liquid rich inclusions and simple Liquid-rich inclusions can be observed in Sara deposits. Polyphase brine inclusions with maximom frequency of homogenization temperature within the range of 400-500 °C and maximom frequency of salinity within the range of 40-50 Wt. % NaCl are primitive fluids that compose Sara deposits. Liquid-rich inclusions with maximom frequency of homogenization temperature within the range of 300-350 °C and maximom frequency of salinity within the range of 10-20 Wt. % NaCl disply last evolution of hydrothermal fluid. Microthermometric results of fluid inclusions indicate primitive hydrothermal fluids have been trapped in tempereture about 500 °C and pressure of 600 bars. Maximum emplacement depth of the Sara deposit is about 2.3 km. Salinity and homogenization temperature shows that mineralization in the Sara porphyry copper deposit is related to mixing of orthomagmatic and meteoric fluids.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
v.
1
no.
2011
11
24
https://aag.scu.ac.ir/article_11540_ca5a18daa9a996898b9d3dce158c16fd.pdf
Unusual hydrogeology of Asmari formation in Kamarderaz anticline, Izeh
Hamid Reza
Nasseri
Department of Geology, Shahid Beheshti University
author
Farshad
Alijani
Department of Geology, Shahid Beheshti University
author
Mohammad
Nakhaei
Department of Geology,Tarbiat Moallem University
author
Ali
Mehrabinejad
Khuzestan Water and Power Company
author
text
article
2011
per
In order to study the unusual function, hydrodynamic behavior and hydraulic properties of the Asmari formation in Kamarderaz Karst aquifer, south west Izeh, time series analysis was applied to the precipitation, Halaijan spring discharge and the piezometric head data. The flow system was simulated using an equivalent porous media model. Time series analysis included autocorrelation, spectral density, cross-correlation, cross-amplitude, and coherency function. A hydrogeological model for Kamarderaz karst aquifer was developed, which yields information on relevant parameters such as groundwater recharge and underground latteral inflow, to estimate discharge of Halaijan spring. The Collected information was synthesized in a finite difference numerical model, MODFLOW, and the transient-state flow was calibrated under pre-development conditions assuming an equivalent porous medium approach. Results obtained through analysis of the piezometric head and the spring hydrograph data showed that the Asmari karst system of Kamarderaz Anticline has a base flow regime in the large storage capacity of rock matrix. Although the karstic nature of the limestone aquifer the equivalent porous medium flow model is appropriate to represent hydraulic heads and recharge/discharge relationships.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
v.
1
no.
2011
25
36
https://aag.scu.ac.ir/article_11541_a8a2dbdebd38974e6a2ab8f1a0c1f559.pdf
Fractal analysis for determination of Tectonic activity in the north of Lali, NE Khuzestan
Abbas
Charchi
Faculty of Earth Sciences, Shahid Chamran University, Ahvaz, Iran
author
Mohammad Mehdi
Khatib
Department of Geology, Birjand University
author
Mohammad
Mozafarkhah
Department of Geology, Birjand University
author
Arash
Barjasteh
Khuzestan Water and Power Company
author
text
article
2011
per
Fractal analysis of features and geological structures are used for Tectonic activityof an area. Computing the fractal dimensions from fracture density changes in the north of Lali in NE Khuzestan indicateS increasing in fractures fractal dimension from south to north. In southest, surveyed portion fractal dimension is about 1.398 and in the northest surveyed portion increases to 1.617. Stream fractal dimension increases from north to south. In northern fractal dimension of the studied section is about 1.805 and in southern section it increases to 1.862. Earthquake epicenters fractal dimension is increasing from east to west importantly. Adapting the fracture density fractal dimension and earthquakes epicenters is increasing from southeast to northeast. Streams density is decreasing from southern to northeast in this area. Affecting the agent of existing thrusts that caused to increasing the high, fracture density and earthquake in area.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
v.
1
no.
2011
37
47
https://aag.scu.ac.ir/article_11542_b92bb3e920d3a69401fca6e7d20266a5.pdf
Study of sedimentary environment and geochemistry of Kashkan Formation sandstones
Reza
Zareisahamiyeh
Department of Geology, Faculty of Sciences, Lorestan University
author
Bijan
yosefiyaganeh
Department of Geology, Faculty of Sciences, Lorestan University
author
Hasan
Zamaniyan
Department of Geology, Faculty of Sciences, Lorestan University
author
Forough
Moazami Godarzi
Department of Geology, Faculty of Sciences, Lorestan University
author
text
article
2011
per
Kashkan Formation (Paleocene-Middle Eocene) consists of conglomerate, sandstone and siltstone facies and the maximum extent of this formation is in Lorestan area. In this study, fifteen lithofacies as Gm, Gms, Gp, Gt, Sm, Sp, St, Sh, Shr, Slr, Slp, Sfl, Fsm, Fm and L were recognized. By using lithofacies, three sedimentary environments( brided river low- sinousity meandring river and coastal plain) hae been separated. XRF analyses of sandstones show that in proximal facies sandstone facies Fe2o3, Sio2 and Al2o3 are abundant. Against distal sandstone facies Mgo, Cao, U and Sr are high and in coastal facies Na2o, p2o5, K2o and Tio2 are low.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
v.
1
no.
2011
48
61
https://aag.scu.ac.ir/article_11543_3cca8138777410e63f977618b90a9b38.pdf
Geomorphological analysis of tectonic activities affecting the formation of Maharlou Lake
Ali
Faghih
Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran
author
Babak
Samani
Faculty of Earth Sciences, Shahid Chamran University, Ahvaz, Iran
author
Saman
Khabazi
Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran
author
Reyhaneh
Roshanak
Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran
author
text
article
2011
per
Maharlou Lake was formed as a northwest-southeast-trending tectonic depression in response to the movement on the Maharlou and Ghareh faults in the southeast of Shiraz city. The presence of the fault along the margin of the lake and the geomorphic features of the mountain fronts provide suitable field data for the evaluation of the tectonic activity affecting the formation of the lake. Using a quantitative approach for the geomorphological analyses including measurements of geomorphic indices (e.g. mountain front sinuosityand valley width/height ratio), the tectonic activity of the faults affecting the formation of this lake was evaluated. The results of geomorphic and morphometric data reveal differences between the two mountain front faults (e.g. Ghareh Fault and Maharlou Fault on the SW and NE sides of the basin) indicating different levels of tectonic activity along each mountain front. These results show a relatively high degree of tectonic activity along the Ghareh Fault in contrast with a low degree of tectonic activity along the Maharlou Fault. The results of the statistical analyses of geomorphic data suggest different tectonic activity classes along each of the faults that can be related to the change in geological conditions and/or due to strain partitioning along these faults.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
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1
no.
2011
62
66
https://aag.scu.ac.ir/article_11544_c94cf33182e958d12b54231e6d2853b1.pdf
Determination of suitable areas for artificial groundwater recharge in Hesaruye Plain aquifer Using a mathematical model and GIS
Mohsen
Rezaei
Department of Geology, Faculty of Sciences, Tarbiat Moallem University
author
Jalal
Jomenia
Department of Geology, Faculty of Sciences, Tarbiat Moallem University
author
Kamal
Khodaei
Department of Geology, Faculty of Sciences, Tarbiat Moallem University
author
text
article
2011
per
Abstract
In this paper, groundwater flow was simulated in Hesaruye plain using GIS and GMS interface with a conceptual model approach. The conceptual model development was manipulated in the GMS environment after collection of the necessary information, combination of information and construction of the database. The scope of groundwater modeling of Hesaruye is to predict the aquifer changes in future and survey the effect of artificial recharge on aquifer. Necessary water for artificial recharge can be supplied from Gelak dam. After the model calibration in steady and unsteady states in 2007 and also model verification for a period of one year, groundwater level prediction was performed for a period of 4 years (from October of 2008 to October of 2012). Different scenarios were defined to recognize a suitable place for artificial recharge. The results indicate that the most suitable place for artificial recharge is alternative No. 3 about 3 Kms distance downstream from the Gelak dam. February to April is the best time interval for water recharge into aquifer.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
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1
no.
2011
67
79
https://aag.scu.ac.ir/article_11545_294f72691411d391834b4aac678a0aab.pdf
Geochemistry and geothermometry in Jian copper deposit (Bavanat), Sanandaj-Sirjan zone, NE Fars Province
Farid
Moore
Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz, Iran
author
Sina
Asadi
Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz, Iran
author
Nasim
Fattahi
Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz, Iran
author
text
article
2011
per
The Jian (Bavanat) Cu deposit, located on the eastern edge of the Sanandaj-Sirjan metamorphic zone, southwestern Iran (195 Km northeast of Shiraz) is hosted by Surian Permo-Triassic volcano-sedimentary complex. Chalcopyrite is the major Cu ore and occurs as veins, veinlets and disseminations. The REE distribution patterns suggest that the protolith of the orebearing metamorphic host rocks (meta-volcanic and albite-epidote-chlorite schist) have of mafic volcanic origin in Jian deposit. Analytical data on metamorphic host rock show that LILEs, TTEs and REEs were depleted whereas HFSEs were enriched during the alteration. Fluid inclusion geothermometric measurements on cogenetic Quartz crystals indicate that copper mineralization is the result of metamorphic hydrothermal fluids acting at temperatures between 200 and 350 oC and salinities between 0.02 and 18 wt% NaCl equivalent at pressures below 300 bars, within greenschist to lower amphibolite metamorphic conditions. The brittle and ductile deformation regimes are the reason for the remobilization of metamorphic fluids and copper ore precipitation along wide ductile shear zones, lithological boundaries, and superficial fractures. Physico-chemical changes caused by the interaction of fluids and the metamorphic host rocks have provided the effective mechanisms for Cu ore precipitation by cooling and condensation, boiling, increased pH, ligands disintegration and decreasing H2O dielectric constant.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
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1
no.
2011
80
92
https://aag.scu.ac.ir/article_11546_e955f060af82420e3b01fd1092bce371.pdf
The analysis of floodplain sedimentary environment and surrounding area of the
river in Minab plain
Mohammad Mehdi
Hosseinzadeh
Physical Geography Department , shahid Baheshti University
author
Ahmad
Nohegar
Physical Geography Department , shahid Baheshti University
author
Maryam
Heydarzadeh
Agricultural Department , Hormozgan University
author
text
article
2011
per
The recognition of sedimentary characteristics is one of the main sections of the study of changes in Minab plain. Sedimentology of the area is of great help in the understanding of the area’s geomorphic changes and as a result the characteristics of groundwater tables. Minab plain, with total size of 1378.8 square kilometers and the maximum height of 50 meters, is in the Northeast of the strait of Hormoz, in Hormozgan province. Minab river is its main river. Since this research pursued the changes in sedimentary environment after the construction of Minab dam and its effect on Minab groundwaters, a field survey was conducted in Minab plain to detect sediment sources of Minab plain. 47 sedimentary samples were collected based on 47 exploratory, and observed wells and granolometry examinations were carried out.To study the characteristic of deposit changes, 6 geological sections were collected on the base of the existing exploratory wells. The collected sections support the theory that alluvial fan sediments are predominant in the north east part of the plain. These samples show that a deep alluvial zone is recognizable in east and south of the current Minab.The overall study result indicates that the alluvium in adjacent high altitudes, especially Minab river mouth, to the plain and alluvial fan of northern area zone graded, and on the whole it is a mixture of gravel, sand, and a little of silt and clay and moving towards the sea the thickness of sediment gradually decreases and changes into silt, sandy and clay sediments. Further more, in the North of Minab plain, in addition to high absorbtion, probably the high amounts of nutrition in groundwater tables is caused by Minab fault which is itself consequential of adjacent Minab fault with this area’s alluvium.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
v.
1
no.
2011
93
103
https://aag.scu.ac.ir/article_11547_6425b5ce01e5d8872012b1ab184599d3.pdf
Emplacement burying of urban household wastes with GIS: A Case Study, lamerd City
Mohammad Ali
Firoozi
Department of Geography, Faculty of Earth Science, Shahid Chamran University, Ahvaz
author
Saeid
Amanpour
Department of Geography, Faculty of Earth Science, Shahid Chamran University, Ahvaz
author
Abbas
Mohammadi
Department of Geography, Faculty of Earth Science, Shahid Chamran University, Ahvaz
author
text
article
2011
per
Sanitary burying of Solid waste as one of surplus martial management system factor, have different and exactly stages; place select, preparing and exploiting from site. Each one of these cases has necessity to study and unharmed management. The main purpose of this research is various studies of factors effective in Emplacement burying of urban household wastes with GIS and AHP models in lamerd City. The methodology of this research is study and examination of effective factors in Emplacement burying of urban household wastes in lamerd City that include; geology, region slope, distance of population centers( city and rural), airport, agriculture land, access to road, distance of surface water and distance of jungle and pastureland. Data of mentioned factors has collected and analyzed with documental and fieldwork studies in GIS software space AHP models. The main results of this research are summarized in desirable Emplacement burying of urban household wastes with GIS software space and AHP models in lamerd City with the information and data collected. In this research, the best place to be elected among five proposals places for the Sanitary burying of urban household wastes.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
1
v.
1
no.
2011
104
112
https://aag.scu.ac.ir/article_11548_0a4fb200223fa1925d20299b82f61dd1.pdf