THE ROLE OF TECTONIC AND CLIMATIC CHANGES IN THE EVOLUTION OF FANS; A CASE STUDY: FANS AROUND SIRJAN PLAYA

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YAMANI M.; MAGHSOUDI M.

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Journal: Desert Year:2003 | Volume:8 | Issue:1 Page(s): 137-151

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Title

THE ROLE OF TECTONIC AND CLIMATIC CHANGES IN THE EVOLUTION OF FANS; A CASE STUDY: FANS AROUND SIRJAN PLAYA

Author(s)

YAMANI M. | MAGHSOUDI M. | Issue Writer Certificate

Keywords

CLIMATIC CHANGEQ3

PLAYAQ2

SEGMENTED FANQ1

SIRJANQ3

TECTONIC ACTIVITYQ2

Abstract

Segmented fans are one of the arid morpho-climatic system landforms that have drawn a significant attention among many researchers. Various results have been reported by workers studying landforms across the globe. SEGMENTED FANs are identified by different specifications such as topographic position, drainage pattern, incision depth, nature of soil profile and desert varnish to other alluvial fans. The goal of this study was to assess effective factors controlling the evolution of SEGMENTED FANs. In this study, aerial photographs and topographic and geological maps in various scales were used. In addition, mountain front sinuosity, valley floor width to valley height ratio and NUVEL 1 a model were used to assess TECTONIC ACTIVITY. The results showed that the evolution of SEGMENTED FANs in SIRJAN PLAYA depended upon TECTONIC ACTIVITY as well as CLIMATIC CHANGEs in which the role of the former seems to be much more important than the latter. In fact, continued down-lift and up-lift of Urumyeh-Dokhtar mountainous region has created the SEGMENTED FANs in SIRJAN PLAYA. Despite this situation, CLIMATIC CHANGEs during arid and humid periods had a second role in the evolution of alluvial fans. Surface is considered, much more important factor than change of location of sediment assimilation thus creating new fans.

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APA: Copy

YAMANI, M., & MAGHSOUDI, M.. (2003). THE ROLE OF TECTONIC AND CLIMATIC CHANGES IN THE EVOLUTION OF FANS; A CASE STUDY: FANS AROUND SIRJAN PLAYA. DESERT (BIABAN), 8(1), 137-151. SID. https://sid.ir/paper/5309/en

Vancouver: Copy

YAMANI M., MAGHSOUDI M.. THE ROLE OF TECTONIC AND CLIMATIC CHANGES IN THE EVOLUTION OF FANS; A CASE STUDY: FANS AROUND SIRJAN PLAYA. DESERT (BIABAN)[Internet]. 2003;8(1):137-151. Available from: https://sid.ir/paper/5309/en

IEEE: Copy

M. YAMANI, and M. MAGHSOUDI, “THE ROLE OF TECTONIC AND CLIMATIC CHANGES IN THE EVOLUTION OF FANS; A CASE STUDY: FANS AROUND SIRJAN PLAYA,” DESERT (BIABAN), vol. 8, no. 1, pp. 137–151, 2003, [Online]. Available: https://sid.ir/paper/5309/en

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