Grain size and sorting as indicators of depositional environment of Ghar formation (Late Lower Miocene), Iraq
Other Title(s)
استخدام الحجم الحبيبي و الفرز و الأرضية دلائل على طاقة البيئة الترسيبية لتكوين الغار (مايوسين أسفل متأخر) في الصحراء الغربية العراقية
Joint Authors
Jan, Sadi Khan
al-Zubaydi, Aqil Abbas Ahmad
al-Amiri, Jabbar Abd Husayn
Source
Bulletin of the Iraq Natural History Museum
Issue
Vol. 9, Issue 1 (30 Jun. 1999), pp.71-83, 13 p.
Publisher
University of Baghdad Iraq Natural History Research Center and Museum
Publication Date
1999-06-30
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
Char formation is subdivided into three lithological types according to the percentage of detrital quartz and calcite (micrite and sparite), through the petrographic study of 13 thin sections collected from a section at Wadi Al-Ratgha (west of Al-Qaim, Iraq Western Desert).
The three rock units are: Limy sandstone, limestone and sandy limestone.
Depending on the mean gain size of detrital quartz and degree of sorting and the type of matrix, Ghar Formation can be classified in to three types, i.
e.
off-shore sediments with low energy environment, near shore sediments with high energy environment and mixed sediments with transitional energy environment.
This is due to local transgression and regression of sea level at late lower Miocene during the deposition of Ghar Formation.
American Psychological Association (APA)
al-Zubaydi, Aqil Abbas Ahmad& Jan, Sadi Khan& al-Amiri, Jabbar Abd Husayn. 1999. Grain size and sorting as indicators of depositional environment of Ghar formation (Late Lower Miocene), Iraq. Bulletin of the Iraq Natural History Museum،Vol. 9, no. 1, pp.71-83.
https://search.emarefa.net/detail/BIM-389068
Modern Language Association (MLA)
al-Zubaydi, Aqil Abbas Ahmad…[et al.]. Grain size and sorting as indicators of depositional environment of Ghar formation (Late Lower Miocene), Iraq. Bulletin of the Iraq Natural History Museum Vol. 9, no. 1 (1999), pp.71-83.
https://search.emarefa.net/detail/BIM-389068
American Medical Association (AMA)
al-Zubaydi, Aqil Abbas Ahmad& Jan, Sadi Khan& al-Amiri, Jabbar Abd Husayn. Grain size and sorting as indicators of depositional environment of Ghar formation (Late Lower Miocene), Iraq. Bulletin of the Iraq Natural History Museum. 1999. Vol. 9, no. 1, pp.71-83.
https://search.emarefa.net/detail/BIM-389068
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 77-83
Record ID
BIM-389068
