Evaluation of Fractal Dimension of Fractures and Drainages in Determining the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran)
The study area is located in the northwest of Iran and in the Central Iranian zone (Urmia-Dokhtar volcanic belt). The aim of this study is deretmination of the tectonic activity of the Qameshlu fault. Field studies, evaluation of fractal dimensions and morphometric indices have been used in order to...
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| Format: | Article |
| Language: | fas |
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University of Sistan and Baluchestan
2022-12-01
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| Series: | جغرافیا و توسعه |
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| Online Access: | https://gdij.usb.ac.ir/article_7284_050775eec336051fa4bca4e48bd9260c.pdf |
| _version_ | 1797804918358147072 |
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| author | Zahra Rasoulianbar Reza Alipour Amirhosein Sadr |
| author_facet | Zahra Rasoulianbar Reza Alipour Amirhosein Sadr |
| author_sort | Zahra Rasoulianbar |
| collection | DOAJ |
| description | The study area is located in the northwest of Iran and in the Central Iranian zone (Urmia-Dokhtar volcanic belt). The aim of this study is deretmination of the tectonic activity of the Qameshlu fault. Field studies, evaluation of fractal dimensions and morphometric indices have been used in order to analyze the morphotectonic evidences of the study area. Firstly, the study area was first divided into 18 basins. Then five quantitative morphometric indices including asymmetry factor index (Af), transverse topographic symmetry index (T), stream length-gradient index (SL), Valley Floor Width to Height Ratio (Vf) and Hypsometric integral index (HI) have been calculated. The relative active tectoic index (Iat) is also calculated, in order to determination of amount of relative tectonic activity. This index is divided into three classes, class 1 (high tectonic activity), class 2 (medium tectonic activity), class 3 (low tectonic activity). The quadratic method has also been used to measure the fractal dimension of active faults and streams. For this purpose, the whole region is divided into six boxes and the amount of fractal dimension in each network is calculated using logarithm-logarithm diagram. The results of fractal analysis of faults indicate that section f is the most active part of the study area, while the results of fractal analysis of streams show more tectonic activity in part b. The results obtained from the study of morphometric indices, fractal analyzes and field evidences show more activity in the central part (in the middle of Qomshloo fault) and in the northern and southern parts due to fault density. |
| first_indexed | 2024-03-13T05:44:17Z |
| format | Article |
| id | doaj.art-e91448f6ea55476e8bab3584470e442f |
| institution | Directory Open Access Journal |
| issn | 1735-0735 2676-7791 |
| language | fas |
| last_indexed | 2024-03-13T05:44:17Z |
| publishDate | 2022-12-01 |
| publisher | University of Sistan and Baluchestan |
| record_format | Article |
| series | جغرافیا و توسعه |
| spelling | doaj.art-e91448f6ea55476e8bab3584470e442f2023-06-13T20:26:32ZfasUniversity of Sistan and Baluchestanجغرافیا و توسعه1735-07352676-77912022-12-01206920322910.22111/gdij.2022.72847284Evaluation of Fractal Dimension of Fractures and Drainages in Determining the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran)Zahra Rasoulianbar0Reza Alipour1Amirhosein Sadr2کارشناسیارشد تکتونیک، دانشگاه بوعلیسینا، همدان، ایراناستادیار گروه زمینشناسی، دانشگاه بوعلیسینا، همدان، ایراناستادیار گروه زمینشناسی، دانشگاه بوعلیسینا، همدان، ایرانThe study area is located in the northwest of Iran and in the Central Iranian zone (Urmia-Dokhtar volcanic belt). The aim of this study is deretmination of the tectonic activity of the Qameshlu fault. Field studies, evaluation of fractal dimensions and morphometric indices have been used in order to analyze the morphotectonic evidences of the study area. Firstly, the study area was first divided into 18 basins. Then five quantitative morphometric indices including asymmetry factor index (Af), transverse topographic symmetry index (T), stream length-gradient index (SL), Valley Floor Width to Height Ratio (Vf) and Hypsometric integral index (HI) have been calculated. The relative active tectoic index (Iat) is also calculated, in order to determination of amount of relative tectonic activity. This index is divided into three classes, class 1 (high tectonic activity), class 2 (medium tectonic activity), class 3 (low tectonic activity). The quadratic method has also been used to measure the fractal dimension of active faults and streams. For this purpose, the whole region is divided into six boxes and the amount of fractal dimension in each network is calculated using logarithm-logarithm diagram. The results of fractal analysis of faults indicate that section f is the most active part of the study area, while the results of fractal analysis of streams show more tectonic activity in part b. The results obtained from the study of morphometric indices, fractal analyzes and field evidences show more activity in the central part (in the middle of Qomshloo fault) and in the northern and southern parts due to fault density.https://gdij.usb.ac.ir/article_7284_050775eec336051fa4bca4e48bd9260c.pdffractal analysistectonic activityactive faultsfractaldrainages |
| spellingShingle | Zahra Rasoulianbar Reza Alipour Amirhosein Sadr Evaluation of Fractal Dimension of Fractures and Drainages in Determining the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran) جغرافیا و توسعه fractal analysis tectonic activity active faults fractal drainages |
| title | Evaluation of Fractal Dimension of Fractures and Drainages in Determining
the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran) |
| title_full | Evaluation of Fractal Dimension of Fractures and Drainages in Determining
the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran) |
| title_fullStr | Evaluation of Fractal Dimension of Fractures and Drainages in Determining
the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran) |
| title_full_unstemmed | Evaluation of Fractal Dimension of Fractures and Drainages in Determining
the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran) |
| title_short | Evaluation of Fractal Dimension of Fractures and Drainages in Determining
the Tectonic Activity of Qameshlu Fault Zone (Northwestern Iran) |
| title_sort | evaluation of fractal dimension of fractures and drainages in determining the tectonic activity of qameshlu fault zone northwestern iran |
| topic | fractal analysis tectonic activity active faults fractal drainages |
| url | https://gdij.usb.ac.ir/article_7284_050775eec336051fa4bca4e48bd9260c.pdf |
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