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INDIAN JOURNAL OF GEOMORPHOLOGY Volume 22 (2), July-Dec., 2017, pp.75- 85

The relationship between Neotectonics and the Rejuvenation of Euphrates River - IRAQ

*Mohamed Salman Salih Al-Jubory, ** Ahmad S. Yasien Al-Gurairy

*Department of Geography
Baghdad University, Baghdad, Iraq


**Department of General Geology and Geological Mapping
Russian State Geological Prospecting University, Moscow, Russia
Al-Qadisiyah University, Iraq


Abstract


The main aim of this study is to determine and find out why it originate the geological-geomorphological phenomenon, known as the “Nagara” which took place in parts of the Euphrates River and its branches (Al-Atshan and Al-Sebil Rivers) at the early twentieth century and continued until the 1940s. It has been confirmed through this study, that the phenomenon of the Nagara, is a geomorphological phenomenon, and it is infact the process of rejuvenating of a part from the Euphrates River and its branches. It’s also represented a result of recent tectonic movements in the Southern Iraqi Desert region. The phenomenon of the Nagara was caused by the recent tectonic uplifting of the eastern edge of the Arabian plate, causing the rejuvenation of a part from the Euphrates River and its branches. This tectonic uplifting also, later (at the end 1980s and beginning 1990s) led to river capturing between the Euphrates Branches (Al-Sebil and Al-Atshan). All geological - geomorphological evidences confirm that the recent tectonic activation continues from the Middle and Upper Miocene until today. This is evidenced by this rare geological phenomenon “Al-Nagara”, which was not known to the people of Iraq previously, although this area is known as Mesopotamia.


Key words: Morphotectonics, Neotectonic, Rejuvenation of Euphrates River, Nagara, Southern Iraqi Desert, Capture River.

 

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