The use of petroleum-well samples and data for geochemical prospecting of metals in sedimentary basins

Lewis, Richard; Bandeira, C.

doi:10.1016/0375-6742(81)90066-2

Cited by 5 publications

References 2 publications

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Geochemical characterization of Cretaceous sandstones from the Southern Benue Trough, Nigeria

Odigi

Amajor

2009

Chin. J. Geochem.

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Geochemical studies of sandstones from the three lithostratigraphic successions in the southern Benue Trough of Nigeria were undertaken for a geochemical characterization of the sandstones, and to assess their stratigraphic and source evolution.Major and trace elements data were obtained from outcrop sandstone samples. The SiO 2 /Al 2 O 3 , Fe 2 O 3 /K 2 O ratios and CaO contents have been used to characterize the Cretaceous sandstones into Al-rich and high and low Fe 2 O 3 /K 2 O ratio sandstones. Results indicate that there are geochemical features that display stratigraphic trends across the succession from the Asu River Group, Eze-Aku Group to the proto-Niger Delta succession which may imply a discontinuous evolution from different source terrains of Precambrian and Mesozoic ages that supplied the sediments. The Asu River Group sandstones have lower SiO 2 , Al 2 O 3 , Fe 2 O 3 and higher MgO; the Eze-Aku sandstones have higher TiO 2 , CaO, alkalis and lower MgO while the proto-Niger Delta sandstones have higher SiO 2 , Al 2 O 3 , Fe 2 O 3 and lower alkalis and CaO. These discontinuities signify the influence of tectonic impulses that affected the southern Benue Trough during the Cretaceous time. Changes in ratios of TiO 2 /Al 2 O 3 , Fe 2 O 3 , Cr and Zr suggest an increasingly mafic contribution to the depositional basin with time. The chemical index of alteration increases with time, possibly suggesting that a more intense weathering regime in the hinterland developed with time.

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Geochemical characterization of Cretaceous sandstones from the Southern Benue Trough, Nigeria

Odigi

Amajor

2009

Chin. J. Geochem.

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Trace and rare earth element geochemistry of the black and grey shales of the Calabar Flank, Southeastern Nigeria: constraints on the depositional environment and the degree of metal enrichment

et al. 2020

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Assessment of chemical and mineralogical composition of tertiary shales from the Nigerian sector of Iullemmeden basin: Implication for paleoclimate and provenance

Toyin

Adekeye

2019

Journal of African Earth Sciences

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The use of petroleum-well samples and data for geochemical prospecting of metals in sedimentary basins

Cited by 5 publications

References 2 publications

Geochemical characterization of Cretaceous sandstones from the Southern Benue Trough, Nigeria

Geochemical characterization of Cretaceous sandstones from the Southern Benue Trough, Nigeria

Trace and rare earth element geochemistry of the black and grey shales of the Calabar Flank, Southeastern Nigeria: constraints on the depositional environment and the degree of metal enrichment

Assessment of chemical and mineralogical composition of tertiary shales from the Nigerian sector of Iullemmeden basin: Implication for paleoclimate and provenance

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