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Assessmentof the Tectonic Activity in Northwestern Part of the Zagros Mountains,Northeastern Iraq by Using Geomorphic Indices
Geomorphic Researcher, Hannover, Germany.
University of Kurdistan, Hewler, KRG, Iraq.Private Consultant Geologist, Erbı ̄l, Iraq.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-6790-2653
2019 (English)In: Geotechnical and Geological Engineering, ISSN 0960-3182, E-ISSN 1573-1529Article in journal (Refereed) Epub ahead of print
Abstract [en]

The Tectonic Activity of regions with active tectonics can be assessed by using of the

geomorphic indices. Six Geomorphic indices including stream-gradient index (SL), drainage basin asymmetry (Af), drainage basin shape (Bs), hypsometric integral (Hi), valley floor width-valley height ratio(Vf), and mountain-front sinuosity (Smf) were calculated using GIS technique in Kifri Chai Basin;northeast Iraq, which belongs to the Western Zagros

Mountain. The basin was divided into eighteen subbasins depending on the 4th, 5th and 6th stream orders of the drainage within Kirfi Basin. It was found that the SL, Af, Bs, Hi, Vf,and Smf (J) values are uniform and exhibit almost the same classes. However, few exceptions occur, especially in Bs values, but the exceptional values do not influence significantly on

the acquired results, in each of the eighteen sub-basin. From these indices the relative active tectonics index value (Iat) was determined. The results of average Iat values (2.35) showed that the tectonic activity in the whole basin is Moderate. Moreover, an attempt was carried out to compare the regional Neotectonic activity with the relative tectonic activity in the basin. The results showed that there is a positive relation between the two comparatives; especially the subsidence amount and scored relative tectonic activity.

Place, publisher, year, edition, pages
Springer, 2019.
Keywords [en]
Geomorphic indices, Tectonic activity, Neotectonic, Western Zagros, Iraq
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-73575DOI: 10.1007/s10706-019-00888-zOAI: oai:DiVA.org:ltu-73575DiVA, id: diva2:1303924
Available from: 2019-04-11 Created: 2019-04-11 Last updated: 2019-04-15

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Al-Ansari, Nadhir

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