Abstract

Fourteen types of palynodebris have been identified in Middle Miocene reservoir sediments from the Niger Delta. They include palynomorphs, cuticle, parenchyma, resins, black debris, woody fragments and degraded components. The palynodebris types were interpreted by Principal Components Analysis and Average Linkage Cluster Analysis. Four assemblages of samples emerged and they have been grouped into two palynofacies associations because of their correlation with mudstone and muddy heterolithic lithofacies and sandstone lithofacies, respectively. The significant palynodebris components are black debris, parenchyma, resins and amorphous organic matter. The size, shape and texture of all the components were integrated with sedimentological features, palynomorph and foraminiferal assemblages to recognize seven, possibly eight, deltaic sub-environments of deposition in the reservoir.

Department(s)

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

cluster analysis; depositional environment; hydrocarbon reservoir; Miocene; palynodebris; principal components analysis; Nigeria, Niger Delta

Geographic Coverage

Niger

Time Period

Miocene

International Standard Serial Number (ISSN)

8831351

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1992 SEPM Society for Sedimentary Geology, All rights reserved.

Included in

Geography Commons

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