Microfacies analysis and basin development of the cenomanian-early Turonian sequence in the Rafai, Noor and Halfaya oil fields, Southeastern Iraq
Other Title(s)
تحليل السحنات الدقيقة و تطور حوض تتابع السينوماني-التوروني المبكر في حقول نفط الرفاعي و نور و الحلفاية، جنوب شرق العراق
Author
Source
Bulletin of the Iraq Natural History Museum
Issue
Vol. 15, Issue 3 (30 Jun. 2019), pp.247-262, 16 p.
Publisher
University of Baghdad Iraq Natural History Research Center and Museum
Publication Date
2019-06-30
Country of Publication
Iraq
No. of Pages
16
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
The stratigraphic sequence of Cenomanian-Early Turonian is composed of Ahmadi, Rumaila, and Mishrif formations in the Rifai, Noor and Halfaya Oil Fields within the Mesopotamian Zone of Iraq, which is bounded at top and bottom by unconformity surfaces.
The microfacies analysis of the study wells assisted the recognition of five main environments (open marine, basinal, shallow open marine, Rudist biostrome, and lagoon); these microfacies were indicative of a normal lateral change facies from shallow water facies to deeper water and open marine sediments.
Ahmadi Formation (Early Cenomanian) is characterized by open marine sediments during the transgressive conditions, and would become deep basinal environment upward to deposition the Rumaila Formation.
Rumaila Formation (Middle Cenomanian) was deposited in the deeper part of the intrashelf basin; it comprises basinal sediments mainly, and includes an abundant of open marine fauna supportive of Middle Cenomanian age.
Rumaila Formation is represented as time equivalent basin to the Mishrif Formation, where they were deposited during highest and system tract (HST).
The Cenomanian- Early Turonian sequence can be subdivided into three cycles displaying coarsening upward cycles :Mishrif A, Mishrif B, and Mishrif C; which comprises a highest and system tract dominated by rudistid packstone to grainstone or rudistid biostrome facies separated by transgressive units (CR I and CR II).
American Psychological Association (APA)
al-Zaydi, Iyad Ali Husayn. 2019. Microfacies analysis and basin development of the cenomanian-early Turonian sequence in the Rafai, Noor and Halfaya oil fields, Southeastern Iraq. Bulletin of the Iraq Natural History Museum،Vol. 15, no. 3, pp.247-262.
https://search.emarefa.net/detail/BIM-893221
Modern Language Association (MLA)
al-Zaydi, Iyad Ali Husayn. Microfacies analysis and basin development of the cenomanian-early Turonian sequence in the Rafai, Noor and Halfaya oil fields, Southeastern Iraq. Bulletin of the Iraq Natural History Museum Vol. 15, no. 3 (Jun. 2019), pp.247-262.
https://search.emarefa.net/detail/BIM-893221
American Medical Association (AMA)
al-Zaydi, Iyad Ali Husayn. Microfacies analysis and basin development of the cenomanian-early Turonian sequence in the Rafai, Noor and Halfaya oil fields, Southeastern Iraq. Bulletin of the Iraq Natural History Museum. 2019. Vol. 15, no. 3, pp.247-262.
https://search.emarefa.net/detail/BIM-893221
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 260-261
Record ID
BIM-893221