Assessment of active tectonic activities in the new pardis city based on Morphotectonics indexes

Document Type : Original Article

Authors

1 2- Assistant Professor Payame Noor University (PNU), Faculty of Science, Department of Geology, Iran, Tehran,

2 Assistant Professor Payame Noor University (PNU), Faculty of Science, Department of Geology, Iran, Tehran.

Abstract

Considering that the relationship between active tectonics and geomorphology has not been studied in the study area so far; It seems necessary to study the tectonic morphological characteristics in order to identify the impact of active tectonics on the area. In order to study the active tectonics in the study area, the morphometric indices of the catchment such as integral index and meta-measurement curves, catchment asymmetry index, transverse topographic asymmetry index, waterway slope index, mountain front maze index and The elongation ratio is used. In order to establish the relationship between structural elements such as lines, faults and morphometric indices, remote sensing studies such as automatic extraction of lines and fractures and density map of lines have been performed. The study of the risk of surface rupture in Pardis shows that the bed of this city hosts important faults that in the initial studies of this city, geological conditions and construction studies have not been considered. According to the results of the study of relatively active tectonics in the study area, it can be concluded that most of the total area under study is in the category of high tectonic activity due to the performance of faults in the area. Comparison of the density map of the ridges with morphometric indices indicates that the high density areas correspond to the active fronts and the density map of the ridges is a confirmation of the high tectonic activity in these areas.

Keywords

Journal of Tectonics
Volume 4, Issue 16
January 2021

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