Tectonic study of Al-Thirthar, Al-Habbaniya, and Al-Razzazah depressions, West of Tigris River, Iraq
Other Title(s)
دراسة تكتوينه لمنخفضات الثرثار و الحبانية و الرزازة، غرب نهر دجلة، العراق
Dissertant
Abd al-Jabbar, Abd al-Khaliq Abd al-Malak
Thesis advisor
al-Jarrah, Umar Burhan
al-Kubaysi, Manal Shakir Ali
Comitee Members
Ahmad, Walid A.
Salih, Imad A. M.
al-Shamma, Aysar Muhammad
al-Mukhtar, Khalid S.
Taha, Mundhir Ali
University
University of Baghdad
Faculty
College of Science
Department
Geology Department
University Country
Iraq
Degree
Ph.D.
Degree Date
2013
English Abstract
The location of Al-Thirthar, Al- Habaniya and Al-Razzazah Depressions is in the central part of Iraq, west of Tigris River.
The age of the exposed rocks ranges from Early Miocene to Holocene.
They represent Euphrates Formation (Early Miocene), Fatha Formation (Middle Miocene), Injana Formation (Late Miocene), Dibdibba Formation (Pliocene-Pleistocene) and Quaternary sediments.
The depressions represent the west margin of the Mesopotamia Zone along its boundary with Al-Salman Zone.
To study the tectonic of the depressions we used the results of reflection seismic data interpretations and satellite images.
The selected seismic reflection sections reveal that the sedimentary basin beneath the three depressions is suffered several stages of extension because of location of the study area near the northeast passive margin of the Arabian plate.
The first stage of the extension took place during Late Triassic followed by several pulses of extensions continued to the Miocene then reactivated some of the normal faults.
The sedimentary basin underwent to strike slip movement in Miocene age.
New stage of extension took place during Late Miocene and continued to the Early Quaternary.
The extension is created by the tilt of the Mesopotamian sequence due to the collision between the Arabian and Iranian Plates.
The tilt generated tensile stresses along axis of flexure where the three depressions are located.
The stresses do reactivation to some of the faults; therefore they reached near the earth surface and developed some of the surface geological features.
One of the important surface features is the three depressions as well as forth one (Dibddiba Depression).
It is located south of Al-Rzazzan Depression and in a same line of the three depressions.
Abstract II The neotectonics studied by using remote sensing data that showed some tectonic activities.
They are represented by two features of extension, the first feature is the development of the four depressions and the second is the deflection of the axes of each Al-Thirthar and Al-Razzazah depressions.
The axis deflects from north-south to the N35°W-S35°E and N45°W-S45°E respectively due to sinistral strike slip movement of the transversal faults during Early Quaternary.
The extensional structures beneath the depression are grabens, horsts and normal faults.
They are called The Lake Faults.
They extend north-south and arcuated eastward.
The Lake Faults control the development and location of the depressions.
The four depressions represent one geological feature.
It extends from Abu-Jir Fault System south of Dibddiba Depression in the south to the Al-Thirthar valley in the north.
The uplifting in area between Al-Habbaniya and Al-Razzazah Depressions with no reactivation of the normal faults beneath Al-Habbaniya depression prevented the four depressions to become one depression.
The reactivated faults play an important role in the development of the depressions due to the thinning of the sequence and raising the hydrogen sulfatebearing groundwater from deep formations to the upper ones through the soluble rocks, gypsum and limestone.
These processes made collapses in the area of depression supported by the last stage of extension and the horizontal movement of the groundwater.
Dibddiba Depression is filled by sediments of Dibddiba Formation (Pliocene- Pleistocene), and the deflection of the axis of Al-Thirthar and Al-Razzazah Depressions in Early Quaternary reflects that the age of the four depressions is the same age (Pliocene-Pleistocene).
Main Subjects
Earth Sciences, Water and Environment
No. of Pages
118
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction.
Chapter Two : Remote sensing data application.
Chapter Three : Interpretation of seismic sections.
Chapter Four : Tectonic evolution and genesis.
Chapter Five : Conclusions and recommendations.
References.
American Psychological Association (APA)
Abd al-Jabbar, Abd al-Khaliq Abd al-Malak. (2013). Tectonic study of Al-Thirthar, Al-Habbaniya, and Al-Razzazah depressions, West of Tigris River, Iraq. (Doctoral dissertations Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-609329
Modern Language Association (MLA)
Abd al-Jabbar, Abd al-Khaliq Abd al-Malak. Tectonic study of Al-Thirthar, Al-Habbaniya, and Al-Razzazah depressions, West of Tigris River, Iraq. (Doctoral dissertations Theses and Dissertations Master). University of Baghdad. (2013).
https://search.emarefa.net/detail/BIM-609329
American Medical Association (AMA)
Abd al-Jabbar, Abd al-Khaliq Abd al-Malak. (2013). Tectonic study of Al-Thirthar, Al-Habbaniya, and Al-Razzazah depressions, West of Tigris River, Iraq. (Doctoral dissertations Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-609329
Language
English
Data Type
Arab Theses
Record ID
BIM-609329
