A Palynology and paleoenvironmental Study of a Section from the Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria

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Abstract: Palynological analysis was carried out on twenty (20) ditch cutting samples from a section (1284.73–

1496.57 m) of the Amansiodo-1 well, Anambra Basin, southeastern Nigeria with the aim of determining the age,

biozone, and depositional environment of the sediments within the depth interval. The laboratory techniques of

digesting sediments in hydrochloric and hydrofluoric acids for silicates and carbonates removal were followed to

process the samples for the recovery of palynomorphs. Fifty two (52) palynomorph specimens were recovered. An

assemblage zone of Echitriporites trianguliformis Zone has been established. The section was dated to the upper

Maastrichtian due to the occurrences of age diagnostic marker species such as: Cingulatisporites ornatus, Distaverrusporites

simplex, Proteacidites sigalii, Dinogymnium cf auclaense, Echitriporites trianguliformis and Retidiporites

magdalensis. Based on the palynomorph marine index and environmental indicator flora, the section was

inferred to be deposited in marine to brackish (coastal) environments with little influence of fresh water.

Keywords: southeastern Nigeria, Anambra Basin, palynology, paleoenvironment, Amansiodo-1 well

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APA

Abolarin James Femi, F., Chukwuma-Orji, J , Okosun, E , Ekom, J & Abolarin, J (2018). A Palynology and paleoenvironmental Study of a Section from the Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria. Afribary. Retrieved from https://afribary.com/works/chukwuma-orji-et-al

MLA 8th

Abolarin James Femi, Femi, et. al. "A Palynology and paleoenvironmental Study of a Section from the Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria" Afribary. Afribary, 11 May. 2018, https://afribary.com/works/chukwuma-orji-et-al. Accessed 04 Mar. 2024.

MLA7

Abolarin James Femi, Femi, Jacinta Chukwuma-Orji , Edward Okosun , Joseph Ekom and James Abolarin . "A Palynology and paleoenvironmental Study of a Section from the Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria". Afribary, Afribary, 11 May. 2018. Web. 04 Mar. 2024. < https://afribary.com/works/chukwuma-orji-et-al >.

Chicago

Abolarin James Femi, Femi, Jacinta Chukwuma-Orji , Edward Okosun , Joseph Ekom and James Abolarin . "A Palynology and paleoenvironmental Study of a Section from the Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria" Afribary (2018). Accessed March 04, 2024. https://afribary.com/works/chukwuma-orji-et-al