Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria

Lukman Musa Adamu; Nuhu George Obaje; Rufai Ayuba; Musa Tevorushung Kovona; Dare Anacetus Adesina; Nsikan Jackson Etukudo; Umaru Ohiani Aliyu

doi:doi:10.11648/j.earth.20221103.16

Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria

Lukman Musa Adamu, Nuhu George Obaje, Rufai Ayuba, Musa Tevorushung Kovona, Dare Anacetus Adesina, Nsikan Jackson Etukudo, Umaru Ohiani Aliyu

Published in Earth Sciences (Volume 11, Issue 3)

Received: 10 April 2022 Accepted: 23 April 2022 Published: 8 June 2022

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Abstract

Sixty-two (62) ditch cutting samples were obtained from Amansiodo-1 well within the Anambra Basin, Nigeria, at depth intervals between 16 - 2191 m and analyzed for lithofacies, Foraminiferal, and systematically described. A total of thirty (30) benthonic foraminiferal species were retrieved: twenty-six (26) arenaceous and four (4) calcareous. The age of the well is determined to be Maastrichtian base on the appearance of benthonic arenaceous Haplophragmoides saheliense (Petters) species. Facies analysis of the samples indicated ten (10) lithofacies and two (2) facies associations. The facies comprise a base to top, the shale facies, shale/sandstone facies, shale/mudstone facies, mudstone/coal facies, sandstone/clay facies, mudstone/clay facies, very coarse sandstone facies, coarse sandstone facies, sandstone/clay facies and siltstone/clay facies, association FA-1 (subtidal) and FA-2 (Intertidal) corresponding to the Mamu Formation in the Anambra Basin. The studied sediments are assigned a shallow marine depositional environment based on the triangular plot of foraminiferal suborder test type (arenaceous, porcelaneous, and hyaline) and lithofacies distribution. The paleosalinity studies suggest a transition from brackish to an open marine depositional environment. Also, paleo-oxygenation of the sediments is anoxic based on foraminiferal distribution and the ratio of epifaunal to infaunal benthonic foraminifera respectively.

Published in	Earth Sciences (Volume 11, Issue 3)
DOI	10.11648/j.earth.20221103.16
Page(s)	96-108
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Paleontology, Paleosalinity, Biostratigraphy, Foraminifera, Paleo-Oxygenation

References

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Lukman Musa Adamu, Nuhu George Obaje, Rufai Ayuba, Musa Tevorushung Kovona, Dare Anacetus Adesina, et al. (2022). Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria. Earth Sciences, 11(3), 96-108. https://doi.org/10.11648/j.earth.20221103.16

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ACS Style

Lukman Musa Adamu; Nuhu George Obaje; Rufai Ayuba; Musa Tevorushung Kovona; Dare Anacetus Adesina, et al. Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria. Earth Sci. 2022, 11(3), 96-108. doi: 10.11648/j.earth.20221103.16

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AMA Style

Lukman Musa Adamu, Nuhu George Obaje, Rufai Ayuba, Musa Tevorushung Kovona, Dare Anacetus Adesina, et al. Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria. Earth Sci. 2022;11(3):96-108. doi: 10.11648/j.earth.20221103.16

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@article{10.11648/j.earth.20221103.16,
  author = {Lukman Musa Adamu and Nuhu George Obaje and Rufai Ayuba and Musa Tevorushung Kovona and Dare Anacetus Adesina and Nsikan Jackson Etukudo and Umaru Ohiani Aliyu},
  title = {Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria},
  journal = {Earth Sciences},
  volume = {11},
  number = {3},
  pages = {96-108},
  doi = {10.11648/j.earth.20221103.16},
  url = {https://doi.org/10.11648/j.earth.20221103.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20221103.16},
  abstract = {Sixty-two (62) ditch cutting samples were obtained from Amansiodo-1 well within the Anambra Basin, Nigeria, at depth intervals between 16 - 2191 m and analyzed for lithofacies, Foraminiferal, and systematically described. A total of thirty (30) benthonic foraminiferal species were retrieved: twenty-six (26) arenaceous and four (4) calcareous. The age of the well is determined to be Maastrichtian base on the appearance of benthonic arenaceous Haplophragmoides saheliense (Petters) species. Facies analysis of the samples indicated ten (10) lithofacies and two (2) facies associations. The facies comprise a base to top, the shale facies, shale/sandstone facies, shale/mudstone facies, mudstone/coal facies, sandstone/clay facies, mudstone/clay facies, very coarse sandstone facies, coarse sandstone facies, sandstone/clay facies and siltstone/clay facies, association FA-1 (subtidal) and FA-2 (Intertidal) corresponding to the Mamu Formation in the Anambra Basin. The studied sediments are assigned a shallow marine depositional environment based on the triangular plot of foraminiferal suborder test type (arenaceous, porcelaneous, and hyaline) and lithofacies distribution. The paleosalinity studies suggest a transition from brackish to an open marine depositional environment. Also, paleo-oxygenation of the sediments is anoxic based on foraminiferal distribution and the ratio of epifaunal to infaunal benthonic foraminifera respectively.},
 year = {2022}
}

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TY  - JOUR
T1  - Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria
AU  - Lukman Musa Adamu
AU  - Nuhu George Obaje
AU  - Rufai Ayuba
AU  - Musa Tevorushung Kovona
AU  - Dare Anacetus Adesina
AU  - Nsikan Jackson Etukudo
AU  - Umaru Ohiani Aliyu
Y1  - 2022/06/08
PY  - 2022
N1  - https://doi.org/10.11648/j.earth.20221103.16
DO  - 10.11648/j.earth.20221103.16
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 96
EP  - 108
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20221103.16
AB  - Sixty-two (62) ditch cutting samples were obtained from Amansiodo-1 well within the Anambra Basin, Nigeria, at depth intervals between 16 - 2191 m and analyzed for lithofacies, Foraminiferal, and systematically described. A total of thirty (30) benthonic foraminiferal species were retrieved: twenty-six (26) arenaceous and four (4) calcareous. The age of the well is determined to be Maastrichtian base on the appearance of benthonic arenaceous Haplophragmoides saheliense (Petters) species. Facies analysis of the samples indicated ten (10) lithofacies and two (2) facies associations. The facies comprise a base to top, the shale facies, shale/sandstone facies, shale/mudstone facies, mudstone/coal facies, sandstone/clay facies, mudstone/clay facies, very coarse sandstone facies, coarse sandstone facies, sandstone/clay facies and siltstone/clay facies, association FA-1 (subtidal) and FA-2 (Intertidal) corresponding to the Mamu Formation in the Anambra Basin. The studied sediments are assigned a shallow marine depositional environment based on the triangular plot of foraminiferal suborder test type (arenaceous, porcelaneous, and hyaline) and lithofacies distribution. The paleosalinity studies suggest a transition from brackish to an open marine depositional environment. Also, paleo-oxygenation of the sediments is anoxic based on foraminiferal distribution and the ratio of epifaunal to infaunal benthonic foraminifera respectively.
VL  - 11
IS  - 3
ER  -

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Author Information

Lukman Musa Adamu

Department of Earth Sciences, Kogi State University, Anyigba, Nigeria
Nuhu George Obaje

Department of Geology, Nigerian National Petroleum Corporation Professorial Chair in Basinal Studies, Ibrahim Badamasi Babangida University, Lapai, Nigeria
Rufai Ayuba

Department of Earth Sciences, Kogi State University, Anyigba, Nigeria
Musa Tevorushung Kovona

Department of Geology, Ahmadu Bello University, Zaria, Nigeria
Dare Anacetus Adesina

Department of Earth Sciences, Kogi State University, Anyigba, Nigeria
Nsikan Jackson Etukudo

Department of Geology, Akwa Ibom State University, Ikot, Nigeria
Umaru Ohiani Aliyu

Department of Geology, University of Maiduguri, Borno, Nigeria

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APA Style

Lukman Musa Adamu, Nuhu George Obaje, Rufai Ayuba, Musa Tevorushung Kovona, Dare Anacetus Adesina, et al. (2022). Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria. Earth Sciences, 11(3), 96-108. https://doi.org/10.11648/j.earth.20221103.16

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ACS Style

Lukman Musa Adamu; Nuhu George Obaje; Rufai Ayuba; Musa Tevorushung Kovona; Dare Anacetus Adesina, et al. Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria. Earth Sci. 2022, 11(3), 96-108. doi: 10.11648/j.earth.20221103.16

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AMA Style

Lukman Musa Adamu, Nuhu George Obaje, Rufai Ayuba, Musa Tevorushung Kovona, Dare Anacetus Adesina, et al. Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria. Earth Sci. 2022;11(3):96-108. doi: 10.11648/j.earth.20221103.16

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@article{10.11648/j.earth.20221103.16,
  author = {Lukman Musa Adamu and Nuhu George Obaje and Rufai Ayuba and Musa Tevorushung Kovona and Dare Anacetus Adesina and Nsikan Jackson Etukudo and Umaru Ohiani Aliyu},
  title = {Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria},
  journal = {Earth Sciences},
  volume = {11},
  number = {3},
  pages = {96-108},
  doi = {10.11648/j.earth.20221103.16},
  url = {https://doi.org/10.11648/j.earth.20221103.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20221103.16},
  abstract = {Sixty-two (62) ditch cutting samples were obtained from Amansiodo-1 well within the Anambra Basin, Nigeria, at depth intervals between 16 - 2191 m and analyzed for lithofacies, Foraminiferal, and systematically described. A total of thirty (30) benthonic foraminiferal species were retrieved: twenty-six (26) arenaceous and four (4) calcareous. The age of the well is determined to be Maastrichtian base on the appearance of benthonic arenaceous Haplophragmoides saheliense (Petters) species. Facies analysis of the samples indicated ten (10) lithofacies and two (2) facies associations. The facies comprise a base to top, the shale facies, shale/sandstone facies, shale/mudstone facies, mudstone/coal facies, sandstone/clay facies, mudstone/clay facies, very coarse sandstone facies, coarse sandstone facies, sandstone/clay facies and siltstone/clay facies, association FA-1 (subtidal) and FA-2 (Intertidal) corresponding to the Mamu Formation in the Anambra Basin. The studied sediments are assigned a shallow marine depositional environment based on the triangular plot of foraminiferal suborder test type (arenaceous, porcelaneous, and hyaline) and lithofacies distribution. The paleosalinity studies suggest a transition from brackish to an open marine depositional environment. Also, paleo-oxygenation of the sediments is anoxic based on foraminiferal distribution and the ratio of epifaunal to infaunal benthonic foraminifera respectively.},
 year = {2022}
}

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TY  - JOUR
T1  - Litho-Bio Facies Analysis and Systematic Paleontology of Sediments in Amansiodo-1 Well, Anambra Basin, Southeastern Nigeria
AU  - Lukman Musa Adamu
AU  - Nuhu George Obaje
AU  - Rufai Ayuba
AU  - Musa Tevorushung Kovona
AU  - Dare Anacetus Adesina
AU  - Nsikan Jackson Etukudo
AU  - Umaru Ohiani Aliyu
Y1  - 2022/06/08
PY  - 2022
N1  - https://doi.org/10.11648/j.earth.20221103.16
DO  - 10.11648/j.earth.20221103.16
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 96
EP  - 108
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20221103.16
AB  - Sixty-two (62) ditch cutting samples were obtained from Amansiodo-1 well within the Anambra Basin, Nigeria, at depth intervals between 16 - 2191 m and analyzed for lithofacies, Foraminiferal, and systematically described. A total of thirty (30) benthonic foraminiferal species were retrieved: twenty-six (26) arenaceous and four (4) calcareous. The age of the well is determined to be Maastrichtian base on the appearance of benthonic arenaceous Haplophragmoides saheliense (Petters) species. Facies analysis of the samples indicated ten (10) lithofacies and two (2) facies associations. The facies comprise a base to top, the shale facies, shale/sandstone facies, shale/mudstone facies, mudstone/coal facies, sandstone/clay facies, mudstone/clay facies, very coarse sandstone facies, coarse sandstone facies, sandstone/clay facies and siltstone/clay facies, association FA-1 (subtidal) and FA-2 (Intertidal) corresponding to the Mamu Formation in the Anambra Basin. The studied sediments are assigned a shallow marine depositional environment based on the triangular plot of foraminiferal suborder test type (arenaceous, porcelaneous, and hyaline) and lithofacies distribution. The paleosalinity studies suggest a transition from brackish to an open marine depositional environment. Also, paleo-oxygenation of the sediments is anoxic based on foraminiferal distribution and the ratio of epifaunal to infaunal benthonic foraminifera respectively.
VL  - 11
IS  - 3
ER  -

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