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Donnish Journal of Geology and Mining Research

May 2015 Vol. 1(2), pp. 027-034

Copyright 2015 Donnish Journals




Original Research Paper


Stratigraphic Status of the Bama Beach Ridge and the Chad Formation in the Bornu Sub-Basin, Nigeria


A.A Zarma1* and A. Tukur2

1Deparment of Geology, University of Maiduguri, Bornu State, Nigeria
2Geology Programme, Abubakar Tafawa Balewa University (A.T.B.U) Bauchi, Nigeria

Corresponding Author E-mail: zarma67@yahoo.com

Accepted 30th April, 2015.



Abstract


This work employed heavy mineral and micropalaeontological procedures to distinguish the Bama Beach Ridge from the Chad Formation in the Bornu sub-basin, Nigeria. Heavy mineral studies show the Bama Ridge samples as consisting of well diversified suite of both opaque and non opaque heavy minerals. These include Haematite, Magnetite, Leucoxene and Ilmenite on one hand and Zircon, tourmaline and rutile on the other. The Chad Formation, however, yielded only four species namely: zircon, rutile, apatite and sphene. Micropalaeontological analyses of several silty clay samples of the Bama Ridge yielded the ostracod species of Eucypris sp., Cypridopsis sp. and Darwinula sp. The Chad Formation samples are found to be effectively devoid of microfossil species. It is thus implied that the Bama Beach Ridge is a separate stratigraphic entity from the Quaternary Chad Formation in the Bornu sub-basin.

Keywords: Bama Ridge, Chad Formation, Heavy Mineral, Micropaleontology, Stratigraphic status.

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Cite This Article:

A.A Zarma* and A. Tukur. Stratigraphic Status of the Bama Beach Ridge and the Chad Formation in the Bornu Sub-Basin, Nigeria. Donnish Journal of Geology and Mining Research 1(2) 2015 pp. 027-034.


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