Geomorphology and active tectonic related to the faults in Kerman Province, SE Iran

Document Type : Original Article

Authors

1- Department og Geology, Faculty of Science and Earthquake Research Center of Shahid Bahonar University of Kerman

Abstract

Regarding to that fault geomorphology could be an information layer in earthquake hazard assessment, is so important. In this research, only landforms of active tectonic within all geomorphs are investigated. These geomorphological features in east of Iran have been investigated using displacement of seasonal streams in field work and on sattlite images. Greatest vertical cumulative movements, more than 2000 m (Golbaf fault) and 1800 m (Kuhbanan) are manifest specifications of the faults in Kerman province. Lakarkuh fault, also, has 1700 m and 1500 m maximum vertical and horizontal displacements, respectively. On the two investigable points on Jiroft and Sabzevaran faults, 110 m and 150 m horizontal displacements were seen, respectively. In sections of streams, from a few centimeters (Jiroft fault), near one meter (Shasdad fault) to few meters (Sarvestan fault) vertical displacements were seen. Among the reverse faults in Kerman province, Nayband, Sarvestsn, Kuhbanan, Shahdad faults, at least in part of their lenghts, created an obvious boundary between mountain and plain. Lakarkuh and Nayband faults have bending on their one or two terminations. The 1978 Tabas earthquke on north termination and Godar earthquake fault (the 2017 Hojedk earthquakes) on south termination of the Lakarkuh fault, are from these active and important fault terminations in eastern Iran and Kerman province. Following field work, on of the eastern Iran specifications was confirmed: coseismic displacements of earthquakes of the Golbaf fault are measurable after at least 26 years.

Keywords

Journal of Tectonics
Volume 5, Issue 17
March 2022
Pages 74-92

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