Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indices
Geomorphological indicators are known as very useful methods for evaluating the effects of slow and fast tectonic activities. These indices can be used to compare different land forms in real and reasonable terms. This research aims to shed light on the mechanism and effectiveness of tectonic moveme...
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Yazd University
2018-08-01
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| Series: | کاوشهای جغرافیایی مناطق بیابانی |
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| Online Access: | http://grd.yazd.ac.ir/article_1246_c61507eb94d11464d05acafa5820b00a.pdf |
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| author | mojtaba yamani Saeide Amirinejad Tork Farzane Gholami Roghaye Nejad Hoseyni |
| author_facet | mojtaba yamani Saeide Amirinejad Tork Farzane Gholami Roghaye Nejad Hoseyni |
| author_sort | mojtaba yamani |
| collection | DOAJ |
| description | Geomorphological indicators are known as very useful methods for evaluating the effects of slow and fast tectonic activities. These indices can be used to compare different land forms in real and reasonable terms. This research aims to shed light on the mechanism and effectiveness of tectonic movements in Semnan basin using such geomorphic parameters as stream length-gradient, hypsometric integral, ratio of valley floor width to valley height, reverse topographic symmetry, drainage basin asymmetry, main river crinkle, mountain front simosity, drainage density, bifurcation ratio, and basin shape. These parameters serve as the model concepts. The physical devices used in this study included IRS satellite images, topographic maps, geological maps, and a geographic information system. To conduct the research, a digital evaluation model was designed for the study area using SRTM10m topographic data. Then, by means of the ARCMAP software, streams were delineated, the indices were measured, and statistical analyses were performed of the parameters. The results were obtained in the form of a map. The results of the data analysis according to the geomorphological indexes and the use of physical tools show that the tectonic activities in the area are moderate. Calculation of 10 geomorphic parameters in the study area represents a relatively active neotectonic activity in Semnan basin. According to the IAT index classification, Semnan basin can be placed in class 3 in terms of tectonic activities. The deep v-shaped valleys in the northern part of the region serve as evidence for such activities in the basin. |
| first_indexed | 2024-03-13T10:21:06Z |
| format | Article |
| id | doaj.art-c268e32527e04a999166a463c9c91c04 |
| institution | Directory Open Access Journal |
| issn | 2345-332X 2588-7009 |
| language | fas |
| last_indexed | 2024-03-13T10:21:06Z |
| publishDate | 2018-08-01 |
| publisher | Yazd University |
| record_format | Article |
| series | کاوشهای جغرافیایی مناطق بیابانی |
| spelling | doaj.art-c268e32527e04a999166a463c9c91c042023-05-20T13:04:40ZfasYazd Universityکاوشهای جغرافیایی مناطق بیابانی2345-332X2588-70092018-08-016114917410.29252/grd.2018.12461246Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indicesmojtaba yamani0Saeide Amirinejad Tork1Farzane Gholami2Roghaye Nejad Hoseyni3university master/ tehran universityMaster of Hydrogeomorphology in Environmental Planning, University of Tehran, IranMaster of Hydrogeomorphology in Environmental Planning, University of Tehran , IranMaster of Hydrogeomorphology in Environmental Planning , University of Tehran, IranGeomorphological indicators are known as very useful methods for evaluating the effects of slow and fast tectonic activities. These indices can be used to compare different land forms in real and reasonable terms. This research aims to shed light on the mechanism and effectiveness of tectonic movements in Semnan basin using such geomorphic parameters as stream length-gradient, hypsometric integral, ratio of valley floor width to valley height, reverse topographic symmetry, drainage basin asymmetry, main river crinkle, mountain front simosity, drainage density, bifurcation ratio, and basin shape. These parameters serve as the model concepts. The physical devices used in this study included IRS satellite images, topographic maps, geological maps, and a geographic information system. To conduct the research, a digital evaluation model was designed for the study area using SRTM10m topographic data. Then, by means of the ARCMAP software, streams were delineated, the indices were measured, and statistical analyses were performed of the parameters. The results were obtained in the form of a map. The results of the data analysis according to the geomorphological indexes and the use of physical tools show that the tectonic activities in the area are moderate. Calculation of 10 geomorphic parameters in the study area represents a relatively active neotectonic activity in Semnan basin. According to the IAT index classification, Semnan basin can be placed in class 3 in terms of tectonic activities. The deep v-shaped valleys in the northern part of the region serve as evidence for such activities in the basin.http://grd.yazd.ac.ir/article_1246_c61507eb94d11464d05acafa5820b00a.pdfmorphotectonic indicesgeomorphological evidencetectonicssemnan basindrainage |
| spellingShingle | mojtaba yamani Saeide Amirinejad Tork Farzane Gholami Roghaye Nejad Hoseyni Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indices کاوشهای جغرافیایی مناطق بیابانی morphotectonic indices geomorphological evidence tectonics semnan basin drainage |
| title | Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indices |
| title_full | Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indices |
| title_fullStr | Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indices |
| title_full_unstemmed | Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indices |
| title_short | Investigation of the active tectonic in Semnan basin (South of Semnan) using geomorphological indices |
| title_sort | investigation of the active tectonic in semnan basin south of semnan using geomorphological indices |
| topic | morphotectonic indices geomorphological evidence tectonics semnan basin drainage |
| url | http://grd.yazd.ac.ir/article_1246_c61507eb94d11464d05acafa5820b00a.pdf |
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