FORAMINIFERAL BIOSTRATIGRAPHY AND PALEOECOLOGICAL STUDIES OF BENDEL-1 WELL. ANAMBRA AND NIGER DELTA BASINS, NIGERIA

SORONNADI-ONONIWU G.C.¹, YIKAREBOGHA Y.², OMOBORIOWO A.O.^3
1Department of Geology and Physics, Niger Delta University, Amassoma, Nigeria.
²Drilling Dept., Nigerian Petroleum Development Company, Benin.
³Dept. of Earth Sciences, Federal University of Petroleum Resources, Effurun, Nigeria.

Received : 14-11-2013     Accepted : 09-12-2013     Published : 27-12-2013
Volume : 1     Issue : 2       Pages : 24 - 27
World Res J Biosci 1.2 (2013):24-27

The Foraminiferal biostratigraphic study has been carried out on ditch cutting and outcrops samples from of the Anambra and Niger delta Basin as penetrated by Bende-1 well. An attempt was made to determine the relative age, Paleoecology, paleobathymetry and depositional environment of the study area. A lithostratigraphic analysis of the the area shows that the samples are made up of shale, claystone and siltstone which are grey to dark grey and brown in colour with intercalations of medium to fine grained sandstone beds. The section yielded planktonic and benthonic forms with significant variations in abundance and diversity. Based on the paleobathymetric divisions and depositional environments observed in the study, the interval are from littoral, inner neritic to outer neritic environment. The paleo-environment of deposition were determined to range from littoral to proximal offshore in a shallow marine setting, the foraminiferal assemblages were dominated by the Benthonics, from foraminiferal assemblage zones, the age range from Late Campanian-Early Eocene.