Cenozoic

Cretaceous

Neoproterozoic

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Kalambaina Formation

Kalambaina Fm

Period:

Paleogene

Age Interval:

middle Paleogene

Province:
Sokoto Basin (S. Iullemmeden Basin)

Type Locality and Naming

The Kalambaina Fm type locality is exposed in the Sokoto Cement Works Quarry (Whiteman, 1982). Middle formation in the Sokoto Gr.

Reference section: Reyment,1965; Adeleye,1975; Kogbe,1976; Dessauvagie, 1975; Petters, 1978; Offodile, 1980; Whiteman, 1982; Benkhelil,1989; Okosun, 1992; Guiraud, 1993; Akandeet al., 1998; Zaborskiet al., 1998; Jauroet al., 2007 ; Obaje,2009; Nwajide, 2013

[Fig. 1. Stratigraphic successions in the Nigerian sector of the lullummeden Basin (Sokoto Basin)]

Lithology and Thickness

Kalambaina Fm consists of grey-yellow and white limestone, calcareous shale and laminated shale. The Kalambaina Fm varies in thickness but is less than 70ft (Whiteman, 2013).

Lithology Pattern:

Clayey limestone

Relationships and Distribution

Lower contact

Overlies the Dange Fm

Upper contact

Conformably underlies the Gamba Fm

Regional extent

Iullemmeden Basin

GeoJSON

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Fossils

Sokoto Gr has Foraminifera, ostracods, Fossil vertebrates, molluscs, echinoids, corals, nautiloids, gastropods, lamellibranchs, Fish teeth and scales, bivalve moulds, ostracods

Age

middle Paleocene; so put here as Selandian

Age Span:

Beginning stage:

Selandian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

61.66

Ending stage:

Selandian

Fraction up in the ending stage:

1.0

Ending date (Ma):

59.24

Depositional setting

Following the disaerobic transitional/marginal marine setting of the Dange Fm (Petters, 1999; Nwajide, 2013), the Kalambaina Fm showed a shallow, nearshore, open marine (Obiosioet al., 1998; Nwajide, 2013) and followed by a marginal marine environment in Gamba Fm.

Depositional pattern:

Additional Information

Compiler:

Prof. E. O. Obiosio, Solomon Joshua Avong and Henry Nasir Suleiman (2024)- Stratigraphic Lexicon compiled from the following books:

Nigeria: Its Petroleum Geology, Resources and Potential, by Arthur Whiteman, 1982; (Volume 1) Published by Graham and Trotman Ltd.

A review of the Cretaceous System in Nigeria by P. M. Zaborski (1998) In Africa Geoscience Review, Vol.5, No.4, pp385-483

Geology and Mineral Resources of Nigeria by Nuhu George Obaje, Published by Springer-Verlag Berlin Heidelberg 2009; http://www.springer.com/series/772

Geology of Nigeria Sedimentary Basins, Nwajide C. S., 2013; Published by CSS Bookshops Limited, Lagos Nigeria.