List of Articles Mohammad Mahdi Khatib

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  1 - Experimental modeling of migration in Shekarab active fault system (North Birjand)
  Mehdi Yosefi Mohammad Mahdi Khatib Ebrahim Gholami
  The Shekarab fault system, located in the north of the Birjand city, has fault scarps parallel to main fault. Due to the structural features, mechanism of fault trends in the region, fault-related folding and the occurrence of the migration from the north to the south a More

  The Shekarab fault system, located in the north of the Birjand city, has fault scarps parallel to main fault. Due to the structural features, mechanism of fault trends in the region, fault-related folding and the occurrence of the migration from the north to the south at Shekarab fault, modeling is done for the geometric pattern of the fault propagation, which is in accordance with the Shekarab fault zone. In this model, new scarps are formed in the footwall of the previous scarps. According to the results of modeling, the most important factor for creating alternate scarps is the north-south compression in the Shekarab thrust. At each step, by increasing the amount of shortening, the emergence of new faults are observed so that the first thrust is created on the northern side of the Shekarab zone and subsequent faults are created by increasing the amount of shortening up to a maximum of 58%, on the southern side of the zone and on the footwall of the previous faults. In this modeling, the slope of the thrusts is created in four stages of shortening varying between 60-65 degrees, which is comparable with the actual slope of the Shekarab faults of 70 degrees. According to the experimental results, the sequence of thrust creation in each modeling stage is consistent with the sequence of thrust in the Shekarab zone and with the north-south migration of the fault. According to the geometry of thrusts and back-thrust, the model of formation of structures in this fault zone is the foreland breaking sequence model so that the branches of the thrust originate from a point. Manuscript profile
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  2 - The effect of the Gachsaran mobile formation on folding style and tectonic evolution of the Rag-e- Sefid anticline in the southern Dezful Embayment
  Mehdi Yosefi Seyd Morteza Moussavi Mohammad Mahdi Khatib
  Plastic behavior and significant thickness of the Gachsaran incompetence formation on top of middle carbonate units in the sedimentary sequence of the southern Dezful Embayment led to the emergence of different styles of folding above and below of this formation. So tha More

  Plastic behavior and significant thickness of the Gachsaran incompetence formation on top of middle carbonate units in the sedimentary sequence of the southern Dezful Embayment led to the emergence of different styles of folding above and below of this formation. So that the structures in the upper and lower parts of this formation are completely separated and do not match each other. In the upper anticlines, above the Gachsaran horizon, the calculation of the limbs angle, the main thrust slope and the percentage of forelimb thickening indicate the fault detachment fold style. This style marks the geometry of fold at the early stage of the development of this anticline. Also the seismic profiles below the Gachsaran horizon also show the fault-propagation folding style. In the south Dezful Embayment, folding in the Gachsaran Formation occurs with shorter wavelengths in the form of disharmonic folds. This folding acts as the decoupling surface for the lower folds so that the synclines in this moving horizon directly cover the lower anticlines. The rounded folds in the carbonates in lower anticline are the imposed folds associated with steepened up reverse faults, detached on the basal decollement level and ultimately faulted by progressive deformation. The interpretation of seismic sections in the southern Dezful Embayment shows that lateral migration occurs in the salt units of the GS2 and GS4, and the upper and lower units of the Gachsaran Formation do not play a role in salt migration. Lateral migration in Miocene salts of the Gachsaran Formation is accomplished by the growth of sub-anticline during folding and loading of upper formation at the upper Gachsaran Formation. Manuscript profile
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  3 - Structural controls on the hydrogeochemistry of Azarshahr travertine springs, NW Iran
  Karim Taghipour Mohammad Mahdi Khatib Mahmod Rez Heyhata Abdol Rez Vaezihir Esmail Shabanian
  Travertine deposits in Azarshahr, NW Iran, are one of the most extensive travertine deposits in the world. The process of travertine deposit is currently active in the several springs. It was used a multidisciplinary approach to determine the source of fluids and struct More

  Travertine deposits in Azarshahr, NW Iran, are one of the most extensive travertine deposits in the world. The process of travertine deposit is currently active in the several springs. It was used a multidisciplinary approach to determine the source of fluids and structural characteristics of travertine springs. Results of in-situ measurements and type of travertine deposits, demonstrate that the springs are of thermogenic type with hydrothermal sources. Hydrogeochemical diagrams and ionic ratios represent that the type of spring waters are calcium carbonate, with increased sodium and chloride ions levels due to mixing with brine waters. Geophysical studies showed that these brines originated from the Urmia Lake or related brines, which are intruded through fracture systems to relay zones of faults and mixed with hydrothermal bicarbonate-saturated fluids. This phenomenon shows that hydrochemistry of travertine springs are affected by Urmia Lake or related brines. Manuscript profile
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  4 - Investigating rate of Doroud fault zone tectonic activity (southwest of Iran) by using geomorphologic data analysis (fans, basins and drainage system)
  محمدرضا سپهوند Zahra Kamali  Tokhmechi MahmoudReza Hayhat  Roshandel Kahoo Hamid Nazari  Ahmadi Noubari Mohammad Mahdi Khatib
  Morphotectonic analysis with the help of geomorphic indices is considered as a tool for the identification of new and active structures affected by tectonic movements in special areas. For this purpose, indicators such as Mountain Front Sinuosity index (Smf), (Vf), (Af More

  Morphotectonic analysis with the help of geomorphic indices is considered as a tool for the identification of new and active structures affected by tectonic movements in special areas. For this purpose, indicators such as Mountain Front Sinuosity index (Smf), (Vf), (Af), (S), (Sl), (T), form factor basin, basin shape, slenderness ratio and stretch ratio index of basin (Bs) associated with alluvial fans, including fan of bending β, fanning coefficient and longitudinal profile were calculated. The tools in this study include: the topographic maps, field geology invesigations, satellite imagery, digital elevation model (DEM), IRS satellite images of the region, GIS and Global mapper softwares. The results of the analysis of topographic data, evidences from field observations and data obtained from geomorphic indicators, all suggested that the area is active from neotectonics viewpoint. Based on the classification of LAT, the study area is classified in class 1, which indicates intense tectonic activity. Based on the results, the northern part of the Dorud fault is more active than the southern section in terms of neotectonic movements.   Manuscript profile
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  5 - Tectono-magmatic setting of diabase and basalt flows in north Makran ophiolite, southeast of Iran
  Azizollah Bazzi Mohammad Mahdi Khatib Mohammadhosein Zarrinkoub
  20.1001.1.17357128.1399.14.55.4.5
  The north Makran ophiolite in southeast of Iran, as a part of Tethyan ophiolites, is located between Lut and Bajkan-Durkan continental blocks. Among the rocks of this ophiolite sequence, diabase and basalt flows are present more abundant in the outcrops in the eastern p More

  The north Makran ophiolite in southeast of Iran, as a part of Tethyan ophiolites, is located between Lut and Bajkan-Durkan continental blocks. Among the rocks of this ophiolite sequence, diabase and basalt flows are present more abundant in the outcrops in the eastern part of the studied north Makran ophiolite. Structural, petrographic and geochemical evidences suggest distinct geodynamic setting for the formation of these rocks. Based on geochemical characteristics, diabase and basalts fall into two groups: In the first group, tholeiitic diabase and basalt flows represent MORB-like affinity, and the second group include calc-alkaline basaltic to dacitic lavas with arc environment and supra-subduction affinities. These two lava types represent two major magmatic events: 1) MORB-type magmatism resulted from Early Cretaceous rifting/opening between two continental blocks and resulted in the formation of tholeiitic diabase and basalt. LREE enrichment, low La/Yb and relatively high U/Th ratios suggest continental influence in their melt source, and 2) subduction-related magmatism, that formed calc-alkaline basaltic, andesitic and dacitic lavas in Late Cretaceous. LILE, LREE enrichment, Nb and Ta negative anomaly, low TiO2 concentrations and relatively high Ce/Pb ratio document subduction influence in their composition. Manuscript profile
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  6 - Determining the timing of folding of Jarik anticline in the Dezful embayment, based on the geometry of growth strata
  Ahmad لشگری Mahmoud reza Hayhat Mohammad Mahdi Khatib Mahdi Najafi
  20.1001.1.17357128.1400.15.58.2.6
  Determining the direction of deformation migration in the fold- thrust belts, is one of the basic aspects for understanding the structural evolution of the fold and thrust belts. By studying the timing and mechanism of deformation and compare it with different regions o More

  Determining the direction of deformation migration in the fold- thrust belts, is one of the basic aspects for understanding the structural evolution of the fold and thrust belts. By studying the timing and mechanism of deformation and compare it with different regions of a fold thrust belt, it is possible to gain a better understanding the history of the structural evolution. The timing and development of deformation in the Zagros folded belt is one of the widely studied topics and the general belief is that collision of two plates of central Iran and Arabian began in Miocene, and gradually developed from the northeast to the southwest. According to the present study, the timing of folding of the Jaril anticline in the northern of Dezful embayment is estimated to be end of Middle miocene (Serravalian). The results of the present study indicated that the onset folding of the Jarik anticline in this area coincides with the deposition of the lower Aghajari Formation. Manuscript profile
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  7 - Balanced Cross Sections and Determine of Shortening in North Makran Ophiolite Mélange, Southeastern Iran
  Azizollah Tajvar Mohammad Mahdi Khatib Mohamad Hossian Zarinkoub
  The geometrical and kinematic characteristics of structural elements of north Makran have been measured and analyzed in five structural sections. Then, by using of balance cross sections and restoring the structures to their original state, the amount of shortening has More

  The geometrical and kinematic characteristics of structural elements of north Makran have been measured and analyzed in five structural sections. Then, by using of balance cross sections and restoring the structures to their original state, the amount of shortening has been determined in different parts of the area. The Bashagard, Dranar, Abenma, Koh Bahark and Vernach thrust faults with a WNW-ESE trend and 20 to 35 degrees dip towards the NNE are the main deformation controllers in this region and are the main cause of shortening. The excellent fit between N209/09 principal stress axis calculated based on the geometry of thrust faults and compression axis that formed folds, indicates that these structures were formed as a result of the same tectonic regime. The difference in the amount of shortening in different parts of the north Makran ophiolite mélange of is also directly related to the thrust faults. So that, in western part of north Makran, thrust faults caused shortening amount 22.66, 22.85 and 14.32% in structural sections A-A', B-B' and C-C' respectively,. In the eastern parts, due to the lack of thrust faults and the presence of more strike-slip faults, the amount of shortening has decreased to 4.52% and 6.67%, respectively, in the sections D-D' and E-E'. Balanced cross sections and restoring the structures to the pre-deformation stages represent the narrow width of the early oceanic basin in the north of Makran. Manuscript profile