International Journal of Science and Technology

International Journal of Science and Technology>> Volume 7, Number 2, February 2017

International Journal of Science and Technology


Dinoflagellate Cyst Biozonation for Upper Cretaceous Succession of Kinasar-1 Well, Central Chad Basin, North East Nigeria

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Author Yikarebogha Y, Oloto, I.N. Soronnadi-Ononiwu, G.C Omoboriowo, A.O
On Pages 108-117
Volume No. 3
Issue No. 2
Issue Date February, 2013
Publishing Date February, 2013
Keywords Dinoflagellate, Palynology, Chad Basin,, Nigeria, Cretaceous


Abstract

The Late Cretaceous succession penetrated by Kinasar-1 well in the Central Chad Basin, North East Nigeria was investigated for its palynological content (dinoflagellate Cyst). This investigation produced biostratigraphically significant dinoflagellate cyst species recovered from interval 1000m 4700m. On the basis of the stratigraphic distribution of these dinocysts, five informal dinoflagellate cyst assemblage zones from the Cenomanian to Maastrichtian are erected. The zones in stratigraphically ascending order are as follows: Leiosphaeridia sp (Zone I), Heterosphaeridium conjunctum (Zone II), Oligosphaeridium poculum (Zone III), Dinopterygium cladoides (Zone IV) and Deflandrea denticulata (Zone V). The ages of these zones based on stratigraphic positions and series of first occurrences of key species are: Cenomanian-Santonian (Zone I), Campanian (Zones II and III) and Maastrichtian (Zone IV and V).

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