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Systematic studies on some middle eocene calcareous nannofossils Northern Iraq
Other Title(s)
دراسة تصنيفية لبعض أنواع متحجرات النانو الكلسية للايوسين الأوسط شمالي العراق
Author
Source
Iraqi National Journal of Earth Sciences
Issue
Vol. 12, Issue 3 (31 Dec. 2012)16 p.
Publisher
University of Mosul College of Science
Publication Date
2012-12-31
Country of Publication
Iraq
No. of Pages
16
Main Subjects
Topics
Abstract AR
إحدى و عشرون عینة صخریة تم اختیارها من المقطع الصخري لتكوین أفانه في الطرف الجنوبي لطیة بیخیر المحدبة، في منطقة دهوك، شمال العراق لدراسة محتویاتها من احافیر النانو الجیریة المجهریة و علاقتها بالظروف البیئیة التي كانت سائدة أنذاك من حیث تاثیرها في انتشار توزیع تلك الكائنات بواسطة المجهر الضوئي، و قد تمت دراسة احدى العینات الأكثر غزارة بمتحجرات النانو بواسطة المجهر الالیكتروني الماسح لبیان بعض الصفات الاساسیة الخاصة و الممیزة لتلك الانواع حیث تم تشخیص (12) نوعا تعود إلى (10) أجناس من متحجرات النانو الكلسية.
Abstract EN
Twenty-one surface samples from Avanah Formation dating to Middle Eocene cropping out in Dohuk area, northern Iraq, were studied for their nannofossils with light microscope.
The study shows that the formation contains a rich and varied assemblage of nannofossils with a significant development of special forms such as Discoasters and Coccolithes.
These forms are useful as stratigraphic indicators in Paleogene sediments and as paleoecological indicators of the studied area.
One of these samples had being studied by Scanning Electron Microscope to show some of the diagnostic features of the studied species.
The study resulted in the recognition of (12) species belong to (10) genera of calcareous nannofossils.
American Psychological Association (APA)
Ulaywi, Ali Husayn. 2012. Systematic studies on some middle eocene calcareous nannofossils Northern Iraq. Iraqi National Journal of Earth Sciences،Vol. 12, no. 3.
https://search.emarefa.net/detail/BIM-321203
Modern Language Association (MLA)
Ulaywi, Ali Husayn. Systematic studies on some middle eocene calcareous nannofossils Northern Iraq. Iraqi National Journal of Earth Sciences Vol. 12, no. 3 (Dec. 2012).
https://search.emarefa.net/detail/BIM-321203
American Medical Association (AMA)
Ulaywi, Ali Husayn. Systematic studies on some middle eocene calcareous nannofossils Northern Iraq. Iraqi National Journal of Earth Sciences. 2012. Vol. 12, no. 3.
https://search.emarefa.net/detail/BIM-321203
Data Type
Journal Articles
Language
English
Notes
Includes appendices.
Record ID
BIM-321203