Keywords : Gulneri

Stratigraphy of the Gulneri Formation (Upper Cretaceous) in the Type Section, Dokan Area, Northeastern Iraq

araz; Tarik S. Abawi Ru hammoudi

Iraqi National Journal of Earth Sciences, 2006, Volume 6, Issue 2, Pages 33-42
DOI: 10.33899/earth.2006.36394

Eight planktonic and six benthonic foraminiferal species were recorded from the type section of the Gulneri Formation at the site of Dokan Dam, Dokan area, northeastern Iraq. The sediments of the Gulneri Formation consist basically of organic–carbon rich black shale and represent a record of the ocean anoxic event 2 (OAE2) across the Cenomanian–Turonian boundary. The planktonic foraminiferal assemblages of the Gulneri Formation indicates an Early Turonian age for the formation .

Biostratigraphy of the Kometan and Gulneri Formations( Upper Cretaceous) in Jrmbor well No. 46, Northern Iraq

Tarik S. Abawi Saad A. Mahmood

Iraqi National Journal of Earth Sciences, 2005, Volume 5, Issue 1, Pages 1-8
DOI: 10.33899/earth.2005.36564

Thirty eight planktonic foraminiferal species were recorded from the Kometan and Gulneri Formations in the subsurface section of Jambur well No. 46, northern Iraq. On the basis of stratigraphic ranges of the recorded foraminifera the studied sequences are attributed to Helvetoglobotruncana helvetica, Marginotruncana sigali, Dicarinella primitiva, D. concavata, Rosita fornicata and Globotruncanita elevata Zones. The Gulneri Formation is Middle to Late Turonian in age, whereas the Kometan Formation ranges from Late Turonian to Early Campanian.