• List of Articles كوه

      • Open Access Article

        1 - Evaluation and zoning of Karstic transformation using the hierarchical analysis method(AHP) (Case study: Kalat mountainous basin, Razavi Khorasan)
        mohsen rezaei arefi mohammad ali zangeneh asadi aboalfazl behniyafar Mohammad javanbakht
        The karst transformation process is a complex process influenced by various variables. Understanding the factors contributing to the development and zoning of karst evolution has a special place in the studies of karst land management and resources. The purpose of thi More
        The karst transformation process is a complex process influenced by various variables. Understanding the factors contributing to the development and zoning of karst evolution has a special place in the studies of karst land management and resources. The purpose of this study was to evaluate and zoning of karst development potential in Kalat mountain basin in Khorasan Razavi province using AHP method. In this study, using hierarchical analysis, lithology information layers, slope distance, slope direction, elevation, distance from stream, distance from fault and land use were considered as operating maps. Also, in order to extract the karst development potential model, the above layers were invoked in GIS environment. The different layers of information were classified as benchmarks by expert judgment and field visits. Finally, according to the obtained weight, karst development zoning map was obtained. The results showed that out of the total area of Kalat basin, 19.04% were in the less developed class, 24.57% in the under developed class, 42.88% in the middle class and 14.38% in the developed class. The lithology factor of the region with the highest value of 0.53 was the most important factor controlling karst development potential in the study area. It is dedicated. The results show that geological factors ، altitude ، topography and distance from the waterway respectively have the most important role in the current karst development in this region. Manuscript profile
      • Open Access Article

        2 - Structural analysis of elevated Sabzkuh syncline in High Zagros
        yasser narimani   Elham Asadi Mehmandosti
        High Zagros zone located in the northeast of Zagros Fold-Thrust Belt and comprises of NW-trending thrust faults. In Sabzkuh area, these thrust faults as forethrust and backthrust have accompanied with positive and negative triangle zones. These zones cause formation of More
        High Zagros zone located in the northeast of Zagros Fold-Thrust Belt and comprises of NW-trending thrust faults. In Sabzkuh area, these thrust faults as forethrust and backthrust have accompanied with positive and negative triangle zones. These zones cause formation of the elevated Sabzkuh syncline on the hanging wall of the Dopoulan and Solaghan-Avardegan Fault as well as the Choghakhor embayment at footwalls of the Main Zagros and Solaghan-Avardegan faults. The horizontal bedding in the Ilam-Sarvak formations in the main faults footwall can be used as an evidence for the formation of the embayment. The elevated Sabzkuh syncline is associated with accommodation of limb wedge thrusts on the fold limbs. These structures show complexity of thrust faults geometry in the high Zagros and imply their initiation from the detachment horizons within the Lower Paleozoic/Hormoz Formation. Manuscript profile
      • Open Access Article

        3 - ‍Calcareous algae of the Shah Kuh Formation (Early Cretaceous) in southwest of Khur (Central Iran)
        hamid mirmohammadsadeghi  Adabi  
        A complete succession of the Shah Kuh Formation with the age of Early Cretaceous is exposed in southwest of Khur, in Central Iran. In order to study and describe calcareous algae the Shah Kuh Formation a stratigraphic section was selected, sampled and studied in Kuh- e More
        A complete succession of the Shah Kuh Formation with the age of Early Cretaceous is exposed in southwest of Khur, in Central Iran. In order to study and describe calcareous algae the Shah Kuh Formation a stratigraphic section was selected, sampled and studied in Kuh- e Tangal- e Bala, 80 Km southwest of Khur city. Association of calcareous algae consist of Delloffrella quercifoliipora belongs to Triploporellaceae, Montiella elitzae, Neomeris cretacea, Salpingoporella sp. and Terquemella sp. related to Dasycladacea and Permocalculus cf. minutus belongs to Gymnocodiacea. Also 2 genera of Udoteaceae (Arabicodium and Boueina) and 1 species of Solenoporaceae (Marinella Lugeoni) were identified. A species of algae ascribed to uncertain affinities (Lithocodium aggregatum) accompanied by skeletal fragments of colonial octocorals were identified in this research. In studied microfacies, ‍calcareous algae were observed in sediments of lagoon and bar environments. Based on ‍calcareous algae and benthic foraminifera association, the age of Late Barremian- Early Aptian was assigned for the succession of the Shah Kuh Formation in studied section. Manuscript profile