Shoreface facies model of Cretaceous Jessu Formation, Yola Sub-basin, Northern Benue Trough, northeast Nigeria: New insights from facies analysis and molecular geochemistry
作者： Babangida M Sarki Yandoka , Wan Hasiah Abdullah , MB Abubakar , Howard Johnson , Adebanji Kayode Adegoke
DOI: 10.1016/J.JAFREARSCI.2019.01.006
关键词:
摘要: Abstract The Yola Sub-basin in the Northern Benue Trough is a frontier exploration basin northeastern Nigeria and to date, there no subsurface data available. oldest sedimentary unit Bima Formation, followed by Yolde, Dukul, Jessu, Sekuliye, Numanha Lamja Formations, ranging age from Berremian-Aptian-Albian Santonian . sediments of Jessu Formation were studied based on facies analysis (lithofacies palynofacies) geochemistry (biomarker distribution) with an objective analysing interpreting source input/origin, paleodepositional conditions, environment reconstruct depositional facis model for successions. study revealed that deposited distal oxic-suboxic relatively anoxic shelf (shallow marine) both aquatic,-marine terrestrially derived inputs. Depositional framework indicate progradational wave storm-dominated shoreface-offshore succession, displaying coarsening upward trend. This represent regressive system, consistent earlier interpretations Cretaceous during brief phase Trough.
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