Formation in the abakaliki area and the mfamosing limestone in the calabar flank petters, 1982.The marine cenomanian turonian nkalagu formation black shales, limestones and siltsones and the interfingering regressive sandstones of the agala and agbani formations rest on the asu river group.
Formation from the area of abakaliki and the limestone of mfamosing in the flank of calabar 11 figures 4 and 5.Following this formation, ezeaku shales and the makurdi formation of turonian occurred.The ezeaku shales is characterized with the presence of thick flaggy calcareous and non-calcareous shales, sandy and calcareous sand-.
A review on the geology and petroleum potentials of the nigerian benue trough and anambra basin is done to identify potential petroleum systems in the basins.The tectonic, stratigraphic and organic geochemical evaluations of these basins suggest the similarity with the contiguous basins of chad and niger republics and sudan, where commercial oil discovery have been made.
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New evidence on the origin and jurassic age of palaeokarst and limestone breccias, loch slapin, isle of skye.Scottish journal of geology 35 25-29.
The sediments s3 and s4 are liassic in age.The time hidden in the pelagic sedimentary record, however, can not be determined from the thin-section data.Solution took place within the reef limestone as shown by solution voids v within the originally aragonitic sponges.In contrast primary calcitic fossils, e.Microtubus, are well preserved.
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