Palynological study of the Campano-Maastrichtian Nkporo Group of Anambra Basin, Southeastern, Nigeria

• Autorzy: Chiadikobi K.C. , Chaghanam O.I. , Omyemesili O.C. , Omoboriowo A.O.
• Języki publikacji: EN

Abstrakty

EN

Palynological assemblages were used in the determination of the age and paleoenvironment of the Nkporo and Enugu Formations of the Anambra Basin, Southeastern Nigeria. Palynological analysis carried out in over twenty-five samples (25) yielded spores, pollens and marine species. The main diagnostic species of spores and pollen recovered includes; Foveotriletes margaritae, Distaverrusporites simplex, Cingulatisporites ornatus, Echitriporites trianguliformis, Longapertites marginatus, Proteacidites segali, Monocolpites marginatus, Constructipollenites ineffectus, Buttinia andreevi, and Retidiporites which were dated to Late Campanian to Earliest Maastrichtian. Also, other sporomorphs includes; Longapertites marginatus (overwhelming abundance), Longapertites microfoveolatus, Longapertites vaneedenburgi, Spinizonocolpites baculatus, Foveotriletes margaritae, Distaverrusporites simplex, Cingulatisporites ornatus, Matonisporites equiexinus, Azolla marsulae, Mauritidiites crassibaculatus, Constructipollenites ineffectus, Echitriporites trianguliformis, Foveotriletes margaritae, and Leiotriletes minor were assigned to Early Maastrichtian. From the palynological analysis, the age-diagnostic index palynomorphs reveal that the Nkporo Group is within Late Campanian to Early Maastrichtian and the depositional environment is mostly marginal marine to marine.

• Wydawca: -
• Czasopismo: World News of Natural Sciences
• Rocznik: 2018
• Tom: 20
• Opis fizyczny: p.31-53,fig.,ref.

Twórcy

autor

Chiadikobi K.C.

• Department of Geology, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria

autor

Chaghanam O.I.

• Department of Geology, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria

autor

Omyemesili O.C.

• Department of Geology, Federal University of Petroleum Resources, Effurun, Delta State, Nigeria

autor

Omoboriowo A.O.

• Department of Geology, Federal University of Petroleum Resources, Effurun, Delta State, Nigeria

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