Evolution of the Enugu Cuesta: a tectonically driven erosional process

C., G.; Okogbue, C. O.; Nwajide, C.S.

doi:10.4314/gjpas.v7i2.16251

Cited by 42 publications

(49 citation statements)

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“…Previous workers (Agagu et al, 1985;Obi, 2000;Obi et al, 2001;Obi and Okogbue, 2004) demonstrated this relationship by linking the origin and evolution of the Anambra Basin to the Santonian tectonics that created the Abakaliki Anticlinorium (Olivet et al, 1984;Maluski et al, 1995;Burke, 1996). Before the Santonian deformation, the Anambra Basin was a stable platform, thinly covered by sediments.…”

Section: Controls On Sedimentation and Sequence Developmentmentioning

confidence: 93%

“…The stratigraphic history of the region is characterized by three sedimentary phases (Short and Stäuble, 1967;Murat, 1972;Obi et al, 2001) during which the axis of the sedimentary basin shifted. These three phases were: (a) the Abakaliki-Benue Phase (Aptian-Santonian), (b) the Anambra-Benin phase (Campanian-Mid Eocene), and (c) the Niger Delta phase (late EocenePliocene).…”

Section: Stratigraphic Overviewmentioning

confidence: 99%

“…The third sedimentary phase credited for the formation of the petroliferous Niger Delta (Fig. 3), commenced in the Late Eocene as a result of a major earth movement that structurally inverted the Abakaliki region and displaced the depositional axis further to the south of the Anambra Basin (Obi et al, 2001). Reyment (1965) (Reyment, 1965;Jan du Chêne et al, 1978;Nwajide, 1979;Arua, 1986;Anyanwu and Arua, 1990).…”

Section: Stratigraphic Overviewmentioning

confidence: 99%

“…Reyment (1965) (Reyment, 1965;Jan du Chêne et al, 1978;Nwajide, 1979;Arua, 1986;Anyanwu and Arua, 1990). The Nsukka Formation, which overlies the Ajali Sandstone, begins with coarse-to medium-grained sandstones and passes upward into well-bedded blue clays, fine-grained sandstones, and carbonaceous shales with thin bands of limestone (Reyment, 1965;Obi et al, 2001). Obi et al (2001) used sedimentological evidence to suggest that the Nsukka Formation represented a phase of fluvio-deltaic sedimentation that began close to the end of the Maastrichtian and continued during the Paleocene (Fig.…”

Section: Stratigraphic Overviewmentioning

confidence: 99%

“…The formation of the anticlinorium dislocated the depositional axis from the Benue Trough to the Anambra Platform (Murat, 1972;Hoque and Nwajide, 1985;Amajor, 1987). As sediment accumulated on the platform, it gradually subsided asymmetrically and Cretaceous deltaic systems of the palaeo-Benue River prograded toward the southwest (Obi et al, 2001). Evidence from tectono-geomorphologic analysis of the Anambra Basin, facies sequence and architecture, and distribution of seismically induced soft sediment deformation structures within the Campanian-Paleocene succession in the Anambra Basin, suggest that the basin subsided asymmetrically at least three times during the Campanian-Maastrictian period (Obi et al, 2001;Obi and Okogbue, 2004).…”

Section: Controls On Sedimentation and Sequence Developmentmentioning

confidence: 99%

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Lithofacies, palynofacies, and sequence stratigraphy of Palaeogene strata in Southeastern Nigeria

Oboh‐Ikuenobe

Chuks

Jaramillo

2005

Journal of African Earth Sciences

117

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Section: Controls On Sedimentation and Sequence Developmentmentioning

confidence: 93%

Section: Stratigraphic Overviewmentioning

confidence: 99%

Section: Stratigraphic Overviewmentioning

confidence: 99%

Section: Stratigraphic Overviewmentioning

confidence: 99%

Section: Controls On Sedimentation and Sequence Developmentmentioning

confidence: 99%

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Lithofacies, palynofacies, and sequence stratigraphy of Palaeogene strata in Southeastern Nigeria

Oboh‐Ikuenobe

Chuks

Jaramillo

2005

Journal of African Earth Sciences

117

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Geothermal Energy Reconnaissance of Southeastern Nigeria from Analysis of Aeromagnetic and Gravity Data

Abraham¹,

Itumoh²,

Chukwu³

et al. 2018

Pure Appl. Geophys.

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Granulometric and pebble morphometric applications to Benin Flank sediments in western Anambra Basin, Nigeria: proxies for paleoenvironmental reconstruction

Ocheli

Okoro

Ogbe

et al. 2018

Environ Monit Assess

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Integrated granulometric and pebble morphometric study of Late Cretaceous rocks of the Benin Flank, Nigeria, were used to delineate depositional process and environment of the rocks in the study area. Granulometric analysis reveals that the sandstones of the Lokoja Bassange Formation have an average graphic mean (Mz) of 0.59Φ (coarse grains), inclusive graphic standard deviation (δi) of 1.36Φ (poorly sorted), graphic kurtosis (Ka) of 1.12Φ (leptokurtic), and inclusive graphic skewness (Ski) of - 0.14Φ (stongly coarse skewed). The sandstones for the Mamu Formation have an average Mz of 1.42Φ (medium grains), inclusive graphic standard deviation (δi) of 0.74Φ (moderately sorted), graphic kurtosis (Ka) of 1.43Φ (leptokurtic), and inclusive graphic skewness (Ski) of 0.02Φ (nearly symetrical). The sandstones for the Ajali Formation have an average Mz of 1.23Φ (medium grains), inclusive graphic standard deviation (δi) of 1.21Φ (poorly sorted), graphic kurtosis (Ka) of 1.46Φ (leptokurtic), and inclusive graphic skewness (Ski) of - 0.17Φ (nearly symetrical). Pebble morphometric analysis of the larger grains reveals that the mean values of elongation ratio (ER) = 0.69, coefficient of flatness (FI) = 54.90%, oblate-prolate index (OPI) = 3.34, the maximum projection sphericity index (MPSI) = 0.75, form = 0.67, and roundness (ρ) = 36.28% for the Lokoja Bassange Formation; ER = 0.76, FI = 37.07%, OPI = -3.20, the MPSI = 0.53, form = 0.38, and ρ = 52.93% for the Mamu Formation; and ER = 0.72, FI = 47.44%, OPI = 1.12, the MPSI = 0.67, form = 0.54 and ρ = 42.68% for the Ajali Formation. The integration of the various granulometric and pebble morphometric data, different bivariate and ternary plots indicate fluvial environment for the Lokoja Bassange Formation, dominantly shallow marine environment for the Mamu Formation and fluvial - shallow marine environment for the Ajali Formation. This study shows that the Benin Flank, western Anambra Basin has a depositional setting radiating between fluvial and shallow marine environments.

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Evolution of the Enugu Cuesta: a tectonically driven erosional process

Cited by 42 publications

References 0 publications

Lithofacies, palynofacies, and sequence stratigraphy of Palaeogene strata in Southeastern Nigeria

Lithofacies, palynofacies, and sequence stratigraphy of Palaeogene strata in Southeastern Nigeria

Geothermal Energy Reconnaissance of Southeastern Nigeria from Analysis of Aeromagnetic and Gravity Data

Granulometric and pebble morphometric applications to Benin Flank sediments in western Anambra Basin, Nigeria: proxies for paleoenvironmental reconstruction

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