List of Articles شاخص های ژئومورفیک

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  1 - Geomorphology indicators, active tectonic and seismicity of Lut and Jazmourian basins in Kerman province (SE Iran)
  Fatemeh Milan Majid Nemati
  Kerman Province is one of the seismic regions of Iran, which has many faults with different trends. Therefore, addressing the issue of tectonic and seismicity in this province can be useful in various fields such as crisis management. In this research, we used topograph More

  Kerman Province is one of the seismic regions of Iran, which has many faults with different trends. Therefore, addressing the issue of tectonic and seismicity in this province can be useful in various fields such as crisis management. In this research, we used topographic maps, geological maps, aerial photos, satellite imagery and seismic catalogs of the Institute of Geophysics of the University of Tehran. In this way, the active tectonics of Kerman province in the Lut and Jazmurian basins and their relations with the seismicity of this province were examined. From geomorphic indicators such as longitudinal river gradient (SL), drainage asymmetry index (AF), topographic symmetry factor (T) and index and basin shape ratio (BS) has been used to determine the tectonic condition of the basins. Although, using the Relative Ratio Index tectonic activity (lat) in the tectonic of each basin was determined that both basins are active, but their tectonic activity is not the same. Shahdad basin has high to moderate activity and Jazmurian basin has a low activity. Also, in order to investigation of active tectonic of the province, geomorphic quantitative indicators were also used. Manuscript profile
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  2 - Neotectonic Activities Survey of karaj basin by using Geomorphic Parameters
  Mojtaba Yamani Shahnaz Alizadeh
  Drainages has been reacting to changes in stream bed to different forms. Case study area has located in Alborz state and in upper of the Mehrshahr of karaj. Since basin has located on the bound shake faults and as big and high population cities is in this area, so study More

  Drainages has been reacting to changes in stream bed to different forms. Case study area has located in Alborz state and in upper of the Mehrshahr of karaj. Since basin has located on the bound shake faults and as big and high population cities is in this area, so study of tectonic Activities position is essential in this area. In this paper has tried Neotectonic  and its effects on the valleys and rivers direction to survey by using of Af, SL,S,BR,P,T,Smf and Hi parameters. Research method is being analytical – comparisonal. For analysis has used WMS and Arc GIS softwares. For more careful survey of Neotectonic activities in area, case study basin has dispensed to four sub basin, such as Rajayishahr, Kamalshahr, Elahiyeh and  Chahardangeh. The research result shown that tectonic has been activing in different  parts of basin, and since western sub basin of area (chahardangeh sub basin) has weakly activity of tectonic in five geomorphic parameters , so this part of basin has relative equilibrium and to run from stage of erosion puberty. Manuscript profile
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  3 - A Comparative Analysis of Evolutions of Tectonical activities in Banks of Hable, Jajrood, and Haji Arab Rivers through Morphometric Methods
  zahrah sarbazi mohammadreza servati Mehran Maghsoodi Fateme Sabokkhiz
  The study of active tectonic is significant due to assessment of the risk of earthquake in different areas, especially those where relatively high tectonic activity was observed in Holocene and Pleistocene. The objective of present study is to compare the tectonic activ More

  The study of active tectonic is significant due to assessment of the risk of earthquake in different areas, especially those where relatively high tectonic activity was observed in Holocene and Pleistocene. The objective of present study is to compare the tectonic activity levels in banks of Hable, Jajrood, and Haji Arab rivers through morphometric analyses. The ratios determined in the present study include the proportion of valley floor width to its height, mountain front-side sinuosity, and longitudinal slope of river, drainage basin asymmetry, and ratio of drainage basin shape, ratio of inverse topographic symmetry of the basin, ratio of drainage basin symmetry, and symmetry ratio of the basin all of which represent the tectonic activity of a region in four categories of low, medium, high and very high. For active tectonic estimation, topographic maps (1: 250,000 and 1: 50,000) along with geological maps (1: 20,000 and 1: 25,000) along with 10m DEM of the studied regions were used. For generation of basins on the studied region, ArcGIS Software was used to deal with a database of digital elevation model. Certain phenomena such as fault scarp, multi-generational alluvial fans, and linear valleys are among morphologic evidence that are abundantly found in basins with high and medium tectonic activity. The results suggest that among the examined basins, the Jajrood basin is more influenced by tectonic activities and this is due to the influence of Jajrood Fault on this basin Manuscript profile
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  4 - ارزیابی فعالیت های تکتونیکی در حوضه آبریز دالکی با استفاده از شاخص های ژئومورفیک
  زهرا دزفولی کلونی مریم ایلانلو
  زمین سیستمی پویاست که تغییر و تحول از جمله ویژگیهای آن است. شبکه های زهکشی و چشم اندازهای رودخانه ای به صور گوناگون نسبت به وقوع تغییرات در بستر جریان عکس العمل نشان میدهند. هدف از این پژوهش، ارزیابی اثر تکتونیک بر شبکه زهکشی حوضه آبریز دالکی است. در این پژوهش از برخی ا More

  زمین سیستمی پویاست که تغییر و تحول از جمله ویژگیهای آن است. شبکه های زهکشی و چشم اندازهای رودخانه ای به صور گوناگون نسبت به وقوع تغییرات در بستر جریان عکس العمل نشان میدهند. هدف از این پژوهش، ارزیابی اثر تکتونیک بر شبکه زهکشی حوضه آبریز دالکی است. در این پژوهش از برخی از شاخصهای کمی ژئومورفیک از قبیل نسبت پهنای کف دره به ارتفاع دره (VF) ،عدم تقارن حوضه ها(AF) ، گرادیان طول رودخانه(SL) و شاخص سینوسی جبهه کوهستان(Smf) استفاده شده است. نتایج تحلیل شاخصهای ژئومورفیک و داده های ژئومورفولوژی حاصل از تجزیه و تحلیلها، نشان میدهد که: که در حوضه دالکی، بریدگی نسبتاً زیاد جبهه کوهستانی، موجب سینوسی زیاد آن شده است. شکلحوضه نیمه کشیده و از نظر تقارن توپوگرافی، نیمه متقارن است، ولی بی نظمیهای موجود در نیمرخ طولی رودخانه به دلیل واحدهای لیتولوژی مختلف و ساختارهای گسلی متعدد،زیاد است. به این ترتیب، مجموع داده ها و شواهد زمینی در حوضه آبریز دالکی نیمه فعال بودن آن را از نظر دینامیک نیروهای درونی زمین نشان میدهد. Manuscript profile