Investigation on mechanical properties of Mozdouran formation as a crushed borrow material (in Mashhad)
Narjes
Ghahremani
Ph.D student in Engineering geology, Ferdowsi University of Mashhad
author
Mohammad
Ghafoori
Geology Department Ferdowsi University of Mashhad
author
Gholamreza
Lashkaripour
Geology Department Ferdowsi University of Mashhad
author
Naser
Hafezi Moghadas
Geology Department Ferdowsi University of Mashhad
author
text
article
2015
per
Sand and Gravel is the essential material used for constructions, concrete projects, and especially for road construction. Most of the material that is required is extracted from the river bed materials and the natural sand. But these immethodical extractions have caused numerous problems in both the ecosystem and nature in a way that today, extraction of river materials is prohibited in most of the cities and countries around the world. Based on this fact, communities tend to use the crushed borrow materials. These materials present such unique features that have resulted in the replacement of river materials with alluvial borrow materials. In this study, besides the review of the sources of alluvial borrow materials in the same material extraction axis in Mashhad (Sarakhs Route), a good source of crushed materials is also introduced. Rock materials due to their unique qualities and properties, created high strength concrete and other applications of these materials and the lifetime of these materials is also higher. In addition, the application of these materials to environmental problems in the region dramatically reduced. In this regard, in addition to the determination of the physical and mechanical properties of these materials (calcium carbonate percentage, dried and saturated samples compressive strength, water absorption, density and specific gravity, harmful substances, an alkaline reaction and Los Angeles abrasion), a mixing scheme including rounded corners and broken materials and made 7 and 28 -day strength of concrete and the slump have been measured. Test results indicate that the use of crushed limestone aggregate in concrete improves its properties.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
1
no.
2015
1
9
https://aag.scu.ac.ir/article_11279_48cdc96ac6c785d0e3f3fb64458ad132.pdf
dx.doi.org/10.22055/aag.2015.11279
Study of Hydrogeological Behavior of the Sabzab karstic Spring, NE Khuzestan
Hamid Reza
Mohammadi Behzad
Department of Geology, Faculty of Earth Sciences, Shahid Chamran University, Ahvaz, Iran
author
Abbas
Charchi
Department of Geology, Faculty of Earth Sciences, Shahid Chamran University, Ahvaz, Iran
author
Nasrollah
Kalantari
Department of Geology, Faculty of Earth Sciences, Shahid Chamran University, Ahvaz, Iran
author
text
article
2015
per
The Sabzab karst spring, with an annual average discharge of more than 11 m3/s, is the largest karstic springs in Khuzestan province. The spring emerges in the southern part of the great karstic gorge, that cuts the Kamarun Anticline transversely, and in the downstream reservoir of the Karun I dam on the right abutment. In order to investigate hydrogeological characteristics of the karstic aquifer which feeds the spring, discharge hydrographs for water years 2007-2008 and 2008-2009 were analyzed. The results have showed that water resources out of the main basin (Kamarun anticline), play an important role in controlling the hydrogeological behaviors of the Sabzab spring.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
1
no.
2015
10
19
https://aag.scu.ac.ir/article_11281_8d5a515bc183c4debb682ea274e755cc.pdf
dx.doi.org/10.22055/aag.2015.11281
Implementing ArcMap GIS Software in Positioning Of ITS System
On Major Roads
Seyed Jafar
Hejazi
Assistant Professor, Faculty of civil Engineering Shahid Chamran University of Ahvaz
author
Alireza
Touranpour
Facululty of Civil Engineering, Jahad University of Ahvaz
author
text
article
2015
per
The use of Intelligent Transportation System (ITS) has led to substantially ease of traffic and increased road safety. The application of such system is currently expanding in Iran with the objective of reducingroad accidents; however, the key element in the installation of ITS is; the positioning on installation site.
Geographic Information System (GIS) is a software which is helpful in locating optimal and effectivepositions for the installation of ITS. The analysis of road incidents of the 60km Andimeshk-PoleZal road, which lies along the ancient Asian Freeway shows that human error is involved in more than 97% of the accidents, therefore the effect of ITS can reduce human factor by alarming, it is expected that the use of ITS along with proper road patrolling can result in significant decline of road accidents in this Route.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
1
no.
2015
20
27
https://aag.scu.ac.ir/article_11282_373fc82ffba353f7c39604bcca27c0f3.pdf
dx.doi.org/10.22055/aag.2015.11282
Hydrogeochemistry of Rare Earth Elements (REEs) in the Thermal and Cold Springs of Taftan Volcano
Ata
Shakeri
Department of earth science, Kharazmi university , Tehran
author
Seyed Kazem
Ghoreyshinia
Faculty of Earth Science, Kharazmi university , Tehran
author
Behzad
Mehrabi
Department of earth science, Kharazmi university , Tehran
author
text
article
2015
per
A behavior of the rare earth elements (REE) in thermal waters has major applications in the exploration for geothermal resources and the study of water–rock interactions in geothermal systems. To this way, concentrations of rare earth elements (REEs) were determined in springs and rocks of Taftan volcano and were normalized to chondrite and whole rock values. Hydrochemical results indicate that immature water and water-rock interaction are the most important factors affecting on chemistry of thermal and cold springs. The result of REEs complexes in the thermal springs reveals that sulfate ion is the only important complexing ligand for REEs in Taftan geothermal springs. Geochemical characteristics of rare earth elements in spring and volcanic rock samples indicate that REEs in these springs originated from the dacitic-andesitic host rock. Whole rock-normalized REEs patterns and thin section studies showed that marginal alteration of minerals, decomposition of matrix in volcanic rocks and alteration of secondary easily-leached phases released REEs (except Eu) in the thermal and cold springs of Taftan area.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
1
no.
2015
28
39
https://aag.scu.ac.ir/article_11288_b8419624cefe74c276e94c79d34bdb12.pdf
dx.doi.org/10.22055/aag.2015.11288
Using a hybrid GA-BP model for estimation of total organic carbon from petrophysical data
Ziba
Hosseini
Department of Geology, Faculty of Natural Science, Tabriz, NW Iran.
author
Ali
Kadkhodaei
Department of Geology, Faculty of Natural Science, Tabriz, NW Iran.
author
Seyed Mohammad Ehsan
Tabatabaei
Department of Mechanical Engineering, University of Tehran, Tehran Iran.
author
text
article
2015
per
Total Organic Carbon (TOC) is the most important parameter to evaluate hydrocarbon generation potential of source rocks. To measure this parameter, expensive and Time-consuming geochemical experiments have been carried out on few samples. Therefore, the main purpose of this study is to estimate the TOC geochemical parameter from petrophysical data that nowadays they are prepared from all wells drilled with low costs. For this purpose, a hybrid system of GA-BP was used. This model is performed using a case study from three wells of the Ahwaz oilfield. The results of this study are compared with genetic algorithm and BP neural network. Results show GA-BP have the higher accuracy and more speed of execution than using them individually. The results of validity of the simulation with this model show that MSE and R2 in testing sample are 0.001299 and 0.973 respectively. This model has good performance and can be generalized to the other development wells.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
1
no.
2015
40
50
https://aag.scu.ac.ir/article_11284_7a94dc00e6f77abc85aeb154014fe336.pdf
dx.doi.org/10.22055/aag.2015.11284
Stratigraphic, Lithological and Structural Controls in Replacement of Nakhlak Deposit (Northeast of Esfahan)
Mohammad Ali
Jazi
Research Center for Ore deposit of Eastern Iran, Ferdowsi University of Mashhad
author
Mohammad Hasan
Karimpour
Research Center for Ore deposit of Eastern Iran, Ferdowsi University of Mashhad
author
Azadeh
Malekzadeh Shafaroudi
Research Center for Ore deposit of Eastern Iran, Ferdowsi University of Mashhad
author
Behnam
Rahimi
Department of Geology, Ferdowsi University of Mashhad
author
text
article
2015
per
The Nakhlak deposit occurred as stratabound and epigenetic deposit in Upper Cretaceous carbonate rocks. Ashin formation as shale barrier in the vicinity of the mineralized zone keep ore bearing fluids within carbonate until ore deposition process has been done. Host rock had suitable properties for mineralization such as presence of the reef facies, limestone to dolostone transition and presence of hydrothermal dolomites. These characteristic increases the porosity and permeability of host rock. Fractures and normal faults contain most of the mineralization in veins with steep (65-90) and 85 ± 5 Azimuth. Qaleh Bozorg Fault as principal displacement zone, which veins have been placed with 45 ± 5 ° to it. According to position of the mineralization in hanging wall of this fault and the high intensity of the mineralization around this fault, the Qaleh Bozorg Fault can be considered as a main factor in creating space structure and the main pedestrian for entrance ore fluids into the upper Cretaceous rocks.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
1
no.
2015
51
66
https://aag.scu.ac.ir/article_11447_e8396ee435dd375b299c09f94fa0baef.pdf
dx.doi.org/10.22055/aag.2015.11447
Kinematic Analysis of Rock Falls by Probabilistic Methods and Considering the Reliability (Gol-e-Gohar Mine No.1 Case study)
Mojtaba
Rabiei Vaziri
Ms.c student of Rock Mechanics, Faculty of Engineering, Department of Minning Engineering. Shahid Bahonar University of Kerman, Kerman, Iran
author
Shahram
Shafiei
Assistant Professor, Faculty of Basic Sciences, Department of Geology. Shahid Bahonar University of Kerman, Kerman, Iran
author
Mohammad Hosein
Panahi
Ms.c student of Rock Mechanics, Faculty of Engineering, Department of Minning Engineering. Shahid Bahonar University of Kerman, Kerman, Iran
author
text
article
2015
per
projects are needed to investigate the probability of falling rock. Coordinates of the discontinuities are important parameters influencing this falls. Most of the studies conducted to evaluate the probability of rock falls without taking into account the reliability requirements. This study uses a probabilistic analysis methods attempt to determine the falls of stone in the north wall of the Gol-e-Gohar mine and result of this study was to compare the final state. The results showed that the falls determined using conventional definitive methods in case of joint sets forming poles in the grid falls is stereonet to be are quite reliable but in the case of joint sets forming poles falls close to the border stereonet grid and the reliability of the grid are reduced. In this case, a more appropriate method of analysis reliability analysis definitive acts and can be replaced. By replacing the reliability analysis method, instead of the deterministic analysis method, the calculation of the coordinate of the discontinuities can be measured by more accurately assess.
Advanced Applied Geology
Shahid Chamran University of Ahvaz
2251-7057
5
v.
1
no.
2015
67
74
https://aag.scu.ac.ir/article_11449_d987bda16ff6ce5d60b1ea06a21ee72c.pdf
dx.doi.org/10.22055/aag.2015.11449