List of Articles geology

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  1 - Land evaluation - Environmental land suitability for urban land planning (Case Study: District 22 of Tehran)
  amir karam ensiyeh mihanparast
  Rapid growth of urbanization and increase of population in the recent decades along reactive planning (in sense of urban planning after occurrence of crises and urban challenges, not before occurrence of crises) of urban districts and metropolitan in order to serve desi More

  Rapid growth of urbanization and increase of population in the recent decades along reactive planning (in sense of urban planning after occurrence of crises and urban challenges, not before occurrence of crises) of urban districts and metropolitan in order to serve desirable services to citizens and the peoples going to cities and extent them, has encountered a problem. In this research , by using the multi criteria techniques and analytic hierarchy process of geo – environmental evaluation for urban land planning with use of geographical information system of zone of 22 has been used .according to this research, effective criteria of land suitability of land planning is divided in to 9 criteria , slop, height , geology , land use , land unit , distance from river, distance from fault , distance from road .the 5 main land uses are high rise building , multistory building , low rise building natural conservation, recreate . the results show that the results show that 19.3 percent area of zone is suitable for high rise building, and 15.28 percent suitable for low rise building. the spatial distribution is of these zones is from north to south and southeast. Suitable area for natural conservation is about 17.6 percent, and 23.33 percent area appropriated for recreation. The conformity of existing building with the suitability maps for the 5 main land uses shows that there are some areas of conformity, but in the other areas, there is unconformity. Manuscript profile
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  2 - Hydrogeological assessment of Aghajari Formation springs in Masjed Soleyman and Lali area, north-east of Khuzestan Province
  مهدی  نخستین مرتضوی Mojtaba  Tavakoli  KamkarRohani Bijan Maleki
  The study area with considerable sandstone outcrop is located north-east of Khuzestan province. The aim of this study was to investigate hydrogeological status to find out factors affecting the springs discharge rate. To reach the goal, the stratigraghy, lithology and s More

  The study area with considerable sandstone outcrop is located north-east of Khuzestan province. The aim of this study was to investigate hydrogeological status to find out factors affecting the springs discharge rate. To reach the goal, the stratigraghy, lithology and structural assessments were undertaken in the area, and also water sample collection was carried out. The results indicated that there is a positive correlation between springs occurrence and fracture density. The data also revealed that in areas where sandstone thickness is remarkable and fractures well developed, aquifer reservoir as well as spring discharge is promising. The hydrochemical data showed that water quality is controlled by stratigraphy. Correlation between sulfate and calcium ions (R=%90) proves that gypsum and anhydrite dissolution process, caused sulfate water type in the study area. Manuscript profile
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  3 - The Impacts of the North Tabriz Fault on the quantitative and qualitative characteristics of the neighbor aquifer in the East of Tabriz City, Iran
  ebrahim rajabpour Abdorreza Vaezi hir
  The North Tabriz Fault (NTF) is the most prominent tectonic structure in the Northwest of Iran. The results of this study show that this fault has a major impact on hydrogeological conditions of the local aquifer. Plio-Quaternary volcanic ash and tuff layers constitute More

  The North Tabriz Fault (NTF) is the most prominent tectonic structure in the Northwest of Iran. The results of this study show that this fault has a major impact on hydrogeological conditions of the local aquifer. Plio-Quaternary volcanic ash and tuff layers constitute the only unconfined aquifer of this area which directly lies on Miocene red marl as aquifer bed rock. Northern part aquifer bed rock is placed in the higher level than the southern part. This could be the reason for the existence of the reverse dip-slip movement of fault in this area, which causes the northern part (hanging wall) trust over the southern part (footwall). Sharp differences in aquifer bed rock level at relatively low distances (less than 200 m), can be a sign of near-vertical slope of fault in this area. An obvious groundwater level differences which reaches to more than 8 meters, along with the apparent differences between groundwater qualities across the fault at a low distance (about 200 meters) show a barrier behavior of fault. Total depth of the southern part wells is four times compared to the northern parts. Total annual discharge of southern part wells is about eight times of northern parts. Total hardness and ions concentrations of groundwater samples shows that most of the northern part samples are not suitable for drinking purposes, but the southern part samples are suitable. Also, all of the northern part samples have the negative Langelier index (corrosive). All of the southern part samples have the positive (very close to zero) Langelier index and suitable for industrial usages. Therefore this is a reason why most of industries in this area were located in the southern part of the fault. Manuscript profile
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  4 - The hydrogeological water balance of Barm-e-Shour wetland in the Haftkel city, Khuzestan province
  Farzad Akbari rahim bagheri Arash Nadri
  Wetlands are the most important and yet vulnerable environmental resources which are vital as water resources to agriculture, springs, ground water recharge and ecology. Therefore, the management and restoration of the wetlands are of great importance and require hydrog More

  Wetlands are the most important and yet vulnerable environmental resources which are vital as water resources to agriculture, springs, ground water recharge and ecology. Therefore, the management and restoration of the wetlands are of great importance and require hydrogeological scrutiny. Barm-e-Shour is one of the most important wetlands in Khuzestan province and is utilized for drinking and agricultural purposes. The wetland is situated on Gachsaran evaporate formation. There are no permanent surface inflows, yet the wetland maintains a steady reservoir, despite the recent drought and water supply limitations. Water and recharge origin which require calculating hydrogeological balance have not been studied so far. To achieve this goal, the iso-depth map, annual water level fluctuation, catchment area and different parameters of water balance were determined. The maximum depth during the dry season was about 3 meters. According to hydrogeological surveys the water balance was positive so that the yearly inflow of water was about 10912 m3 indicating the main role of ground water in wetland recharge. Considering the karst development and isotopic results, carbonates of the Asmari anticline is the most probable source of Barm-e-Shour wetland water. Manuscript profile
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  5 - Occurrence of copper mineralization of Abgareh deposit based on geology, mineralogy and geochemical evidences, south of Damghan
  Raziyeh  Mahabady Mohammad Hassanpour sedghi
  The Torud-Chah Shirin volcanic-sedimentary arc, in the south of Kavir-e-Chah Jam depression (SE of Damghan), hosted many Pb, Zn, Cu, Ag and Au occurrences and deposits. Abgareh copper deposit is located in the northeastern part. Field and petrographic studies indicate t More

  The Torud-Chah Shirin volcanic-sedimentary arc, in the south of Kavir-e-Chah Jam depression (SE of Damghan), hosted many Pb, Zn, Cu, Ag and Au occurrences and deposits. Abgareh copper deposit is located in the northeastern part. Field and petrographic studies indicate that deposit area consist of andesite, basaltic andesite and basalt rocks and to a lesser extent crystal tuffs with a middle–upper Eocene age. The rocks are of high-K, calc-alkaline to shoshonitic in nature, and are formed in a magmatic arc setting in a subduction zone. According to the field observations and mineralogical studies, the mineralization in the region occurred in two stages: hypogene and supergene and weathering. Hypogen zone minerals are generally pyrite, chalcopyrite and bornite, while chalcocite, covellite, malachite and chrysocolla are considered as the main minerals in the supergene zone. Fractures resulting from faults in the rocks of the region created a favorable location for the influence of hydrothermal solution and it is considered as the main controller of mineralization. Most of the textures observed in the mineralization include vein-veinlets, open space filling, radial, replacement and disseminated forms. Geochemical studies indicate that copper has the most relative correlation with silver. Since silver has not been found as an independent crystalline phase, therefore copper was replaced by silver in chalcopyrite and chalcocite. Compared with chondrite and primitive mantle normalizing diagrams, the studied rocks show significant enrichment with respect to LREE and LILE and depletion in HREE and HFSE and negative anomalies in Ti and Nb elements. Based on the relevant diagrams, differential crystallization of mantle rocks had the essential role in the evolution of the studied rocks which were probably derived from enriched mantle. Based on petrography, structural control of mineralization, alteration type and its extention and simple mineralogy, it can be concluded that mineralization at Abgareh district has characteristics of an individual mineralization system. This system is related to evolution of hydrothermal fluid mineralization resulted in vein-type Cu mineralization. Manuscript profile
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  6 - Concepts and methods of teachers in geological field work
  hamidreza moslemidoust
  Geology learning taught in secondary schools has undergone changes over time. Many researchers are looking for new strategies or trying to modify existing strategies to improve the teaching methods of this subject and help the emergence of active, critical and decisive More

  Geology learning taught in secondary schools has undergone changes over time. Many researchers are looking for new strategies or trying to modify existing strategies to improve the teaching methods of this subject and help the emergence of active, critical and decisive citizens. Fieldwork is an increasingly popular strategy for integrated learning in the geosciences. In this research, we sought to identify the type and frequency of fieldwork performed by geology teachers. Also, our goal was to understand the importance of fieldwork in earth science education. For this purpose, a survey was prepared and answered by 16 11th grade biology and geology teachers. The results show that most teachers resort to fieldwork up to three times a year. Also, teachers know that the most suitable type of fieldwork for this level of teaching is problem-solving fieldwork. However, most of the activities carried out by the teachers show that they usually use the direct observation type of field work. These results show that teachers need training at the level of implementing problem-solving field work. Manuscript profile