Browsing by Author "Oladiran Mary Olutimilehin"

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    Biozonation and Correlation of Two Wells in Niger Delta Using Calcareous Nannofossils
    (Acta Palaeontologica Romaniae, 2016) Dairo Victoria Abiola; Oladiran Mary Olutimilehin
    Two wells drilled in the offshore of Niger Delta were biostratigraphically analyzed and correlated, based on their calcareous nannofossils content. The 98 analyzed samples were collected from the Well MAY-01 at interval range of 40ft. (12.19m) to 120ft (36.58m) from the depth of 4050ft. (1234.40m) to 11700ft. (3566.16m), while in the second well, Well MAY-02, at interval range of 30ft (9.12m) from the depth of 7200ft. (2194.56m) down to 9850ft. (3002.28m). In all, twenty calcareous nannofossil species were identified and used for biozonation and correlation. The distribution of the calcareous nannofossil species in the two wells enabled the establishment of zones belonging to the upper Miocene; NN9 and NN11, while NN10 was not recorded. The most abundant calcareous nannofossils identified are Discoaster hamatus, Discoaster berggrenii, Discoaster quinqueramus, Ceratolithus armatus and Ceratolithus cris-tatus. The two biozones of calcareous nannofossils identified from May-01 and May-02 wells were correlated based on their short stratigraphic range and found to be similar in the two studied successions.