Title of article :
Biostratigraphy of Dammam Formation Succession in Boreholes N2 and S1 in Al-Najaf and Al-Samawa Area
Author/Authors :
al-dulaimi, salam ismeal university of baghdad - college of science - department of geology, Iraq , al-wa‘aly, mohammed kareem abdul hussein university of baghdad - college of science - department of geology, Iraq
Abstract :
The Dammam Formation in S and SW of Iraq is an Eocene carbonate succession consisting of limestone and dolostone. Two boreholes are selected in Al-Najaf and Al-Samawa area to investigate the biostratigraphy. The biostratigraphy of Dammam Formation consist of 22 species which belong to 13 genera of fossils foraminifera. Two biozones were distinguished in Dammam Formation depending on benthonic foraminifera Nummulites. These biozones are; Nummulites gizehensis range zone and Alveolina sp. – Coskinolina sp. assemblage zone. According to thESE biozones the age of Dammam Formation represent Middle Eocene , whereas absent of these biozone represent Early and Late Eocene.
Keywords :
Biostratigraphy , foraminifera , biozones , Dammam Formation
Journal title :
Iraqi Journal Of Science
Journal title :
Iraqi Journal Of Science
