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Research Article Open access CC BY 4.0

Regressive Shoreface Depositional System of the Cretaceous Yolde Formation of the Gongola Sub-Basin Northern Benue trough N. E. Nigeria

B. Shettima, M. Bukar, H. I. Kamale, I. A. Yerima, A. O. Umaru

Journal of Geography, Environment and Earth Science International · pp. 1–10 · Published 4 Jul 2020

10.9734/jgeesi/2020/v24i530222

Abstract

The characterization of lithofacies of the Yolde Formation at Briyel town in the Gongola Sub-basin of the Northern Benue Trough indicated coarsening upwards cycles composed transitional succession of six lithofacies that comprises of trough cross-beds, planar cross-beds, massive beds, ripple laminations, parallel laminations and mudstone. This coarsening and thickening upward symmetry is defined by a densely bioturbated mud dominated lower part transitionally grading into heterolithic interval composed thinly bedded sandstone and mudstones both of which developed below fair-weather wave base. This is capped by a succession of moderately bioturbated trough-planar crossbedded sandstone with poly-directional paleocurrent system. These assemblages reflect shoreface deposits and devoid of hummocky cross-stratification therein may account for a moderate wave oceanographic system. Evolution of this setting in the Gongola Sub-basin is indicative of a scenario of a broaden coastline in the coastal palaeogeography of the Yolde Formation typically suppressing due to frictional damping.

Shoreface Yolde formation depositional system Gongola Sub-basin.

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Cited by 8

FLUVIO-DELTAIC DEPOSITIONAL COMPLEX OF THE CAMPANO-MAASTRICHTIAN GOMBE FORMATION OF THE GONGOLA SUB-BASIN, NORTHERN BENUE TROUGH, N.E. NIGERIA

Bukar Shettima, Mohammed Bukar, Fatimoh Dupe Adams · International Journal of Research -GRANTHAALAYAH · 2020

Mineralogy and Geochemistry of Shale Deposits in the Lower Anambra Basin, Nigeria: Implication for Provenance, Tectonic Setting and Depositional Environment

Olugbenga Okunlola, Agonsi Udodirim Lydia, Aliyu Ohiani Umaru · Economic and Environmental Geology · 2023

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