The evaluation of Active Tectonics in north of Esfarāyen city by using morphological evidences and morphotectonic indicators

Document Type : Original Article

Author

Assistant Professor, School of Earth Sciences, Damghan University, Damghan, Iran

Abstract

The evaluation of Active Tectonics in north of  Esfarāyen city by using morphological evidences and morphotectonic indicators.Esfarāyen city is located on the southern slopes of Aladagh Mountains in northeastern of Iran. The northern part of the city, experienced intense  tectonic activities. Due to the high population density and proximity to the  Bojnord city ,center of North Khorasan Province, the study of tectonic activity in this area is necessity. The study of tectonic movements was done in two parts of morphological evidences and morphotectonic indicators. Based on morphological evidence such as numerous earthquakes, geological  formations , change in direction of faults, the displacement in geological formation and river deviation is indicated that this area is part of tectonic active area. morphotectonic studies were performed by using of compactness indicators, Several morphotectonic indices have also been used for morphotectonic studies, and its values for Gravelius coefficient are 1.99, for the ratio of width to valleys’ height (vf) indicators are0.938,  for screw mountain front (smf) are 1.38, basin’ warping coefficient (AF) are 54.28, river sinusoidal index (s) are1.29 and relative tectonic activities index (Iat) are1.41. The results of all these factors, the area will be tectonically active regions.
The studies also showed that the Bidwaz basin in central part of the region  And Roein Basin in West is experienced severe tectonic activities and the Cal Valayt basin Basin in the East region is experiencing  relaxed tectonic movements

Keywords

Full Text

 

 


 

 

References

Bali, B.S, Khan, R.A, Ahmad ,S,Wani, A.A(2016) Morphotectonic analysis of the Madhumati watershed, northeast Kashmir Valley, Arabian Journal of Geosciences Arab J Geosci  9: 390,p1-17
Bull W.B.and L.D.Mcfadeen.1977,Tectonic geomorphology of north fault, California in Dehorning , geomorphology of arid regions. Allen and Unwin.London.pp.115-138
Bull,W.B., 1990 Stream genesis: Implication for soil development 351-368
Hooke,R.L.1972.Geomorphic evidence for late Wisconsin and Holocene tectonic deformation  in Death valley, California. Geological Society of America Bulletin ,83,2073-2098
Irasawa,M.,Ishikawa,Y., Fukumoto ,A and Misogamy T 1991Control of debris flows by forested zone: in proceedings of Japan 30 oct.1991. Tsukuba, Japan Science and Tech.Agency of Japanese Gov
             -      Keller, E.A. Pinter, N (1996). Active tectomics; Prentice Hall publisher, New jersey 
Rockwell,T.k.et. al.1984  ablate Pleistocene- Holocene soil chronosquence in the Ventura basin southern California u.s.a  Allen and unwin , london.309-327
Sato,T.1991.Flood disaster with drifted logs and sand in AsoVolcano. in proceedings of the 2Japan –U.S. Workshop on snow Avalanche ,Landslide, Debris flow Prediction and Control.Sept.30-oct.2.1991.Tsukuba ,Japan. Science and Tech.Agency of Japans Gov.pp.497-506
  Willimin J.H.and Peter L.K.Knuepfer,1994.Kinematics of arc-continent collion in the Eastern central range of Taiwan.Geophsical Research.
Cartojan, E Magliulo, P, Massa, B  (2014) Morphotectonic features of the Tammaro River basin, Southern Apennines, Italy, link.springer. December 2014, Volume 25
Sarma, J. N , Acharje ,S  Murgante, B (2016) Morphotectonic study of the Brahmaputra basin,Journal of the Geological Society of India September 2015, Volume 86, Issue 3, pp 324-330 May 2016
 
 
 
 
Journal of Tectonics
Volume 2, Issue 5
May 2018
Pages 17-36

Files

Share

How to cite

Statistics