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:: Volume 6, Issue 1 (9-2017) ::
ژئو کمی 2017, 6(1): 74-89 Back to browse issues page
Neotectonics influences on morphological variations of Makran costal basins, SE Iran
Abstract:   (576 Views)
Oman plate subduction to the Iranian plate is caused to appearance of Makran additive tectonic belt. The spatial and temporal variation pattern of Makran tectonic can be revealed by the geomorphological landforms study in this area, including measuring the indicators. In this study, by calculating the Morphotectonics parameters (including shape and length and symmetry and asymmetry and basin; and the branching density and … drainage; area and length ratio stream) in the jagin, sadij, kahir and BahuKalat drainage basin, the behavior pattern of the basins to the neotectonic was marked. Index extracting and quantitative comparisons have been using available topographic data (DEM) and geological map models in the software. In addition to the conventional indicators such as asymmetry stream (AF), anomaly (aΔ) and density of hierarchical anomaly (Ga), transverse topographic symmetry (T), river sinuosity (S), the basin (BS), the surface index area and length ratio stream also were used to evaluate the interaction of tectonic forms. Quantitative results show that: Jagin basin based on anomaly in symmetry and shape of the basin; Bahukalat basin based on abnomalities hierarchical (aΔ), density hierarchy and topography transverse and kahir Basin has the greatest tectonic activity are based on sinuosity. The reason for the abnormality of indicators in the basins can be attributed to the active tectonic performance of the region. By altering the geological parameters and creating tectonic anomalies, the earth's shape erosion in the basins will change. But based on the ratio of the area and length index of stream order tectonic activity is the most bahukalat. The ratio of the area and the stream order and topographic symmetry index of tectonic deformation belt of Makran accretionary were increased from West to East. However, the asymmetry stream index was decreased and other indicators in West-East direction did not have specific pattern and based on the Intended basin was different.
Keywords: morphotectonic, stream order area, makran coast, jagin, bahuklat
Full-Text [PDF 2282 kb]   (220 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/10/7 | Accepted: 2017/10/7 | Published: 2017/10/7
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Neotectonics influences on morphological variations of Makran costal basins, SE Iran. ژئو کمی. 2017; 6 (1) :74-89
URL: http://geomorphologyjournal.ir/article-1-818-en.html


Volume 6, Issue 1 (9-2017) Back to browse issues page
مجله پژوهش‌های ژئومورفولوژی کمّی Quantitative Geomorphological Researches
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