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Heavy Mineral Distribution in the Lokoja and Patti Formations, Southern Bida Basin, Nigeria: Implications for Provenance, Maturity and Transport History

S. I. Bankole
S. I. Bankole
, 
A. Akinmosin
A. Akinmosin
, 
T. Omeru
T. Omeru
 and 
H. E. Ibrahim
H. E. Ibrahim
   | Apr 24, 2020
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Article Category: Original scientific paper
Published Online: Apr 24, 2020
Page range: 185 - 197
Received: Dec 31, 2018
Accepted: Feb 26, 2019
DOI: https://doi.org/10.2478/rmzmag-2019-0011
© 2019 Bankole, S. I., Akinmosin, A., Omeru, T. and Ibrahim, H. E., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Figure 1

Geological map of Nigeria. Box indicates the study area.
Geological map of Nigeria. Box indicates the study area.

Figure 2

Section of the Lokoja Formation exposed at Okumi, along the Lokoja-Abuja Highway.
Section of the Lokoja Formation exposed at Okumi, along the Lokoja-Abuja Highway.

Figure 3

Section of the Patti Formation exposed near the Agbaja Plateau along Lokoja – Agbaja road. The capping rock (uppermost section) in this outcrop is the lower unit of Agbaja Ironstone Formation.
Section of the Patti Formation exposed near the Agbaja Plateau along Lokoja – Agbaja road. The capping rock (uppermost section) in this outcrop is the lower unit of Agbaja Ironstone Formation.

Figure 4

Overall percentage proportion of each non-opaque heavy mineral in the Lokoja Formation.
Overall percentage proportion of each non-opaque heavy mineral in the Lokoja Formation.

Figure 5

Overall percentage proportion of each non-opaque heavy mineral in the Patti Formation.
Overall percentage proportion of each non-opaque heavy mineral in the Patti Formation.

Figure 6

Bar chart of ZTR index of each selected samples of Lokoja Formation.
Bar chart of ZTR index of each selected samples of Lokoja Formation.

Figure 7

Bar chart of ZTR index of each selected samples of Patti Formation.
Bar chart of ZTR index of each selected samples of Patti Formation.

Proportion (number of grains) of heavy minerals concentrations in the sediment samples from Patti Formation.

CODES/NZrnTurRtGrtStEpSilTtAndKyMHblOpq
PAT S1B127101-42113--1303
PAT S2B213112--4-3--8354
PAT S5B344216-2-3-4-201
PAT S741092413108482-41352
PAT S135-------------
PAT S166-------------
PAT S17B73481--2-4---2420
TOTAL573815623161381821284330

ZTR maturity index and individual percentage mineral of the sediment samples of Patti Formation.

CODEZrnTurRtGrtStEpSilTtAndKyMCstHblHypLstTOTAL NON-OPAQUEZ+T+RZTR% INDEX
PATS1B27101-42113---1--503876.0
PATS2B13112--4-3--8-3--442659.1
PATS5B44216-2-3-4----261038.5
PATS71092413108482--4--742128.4
PATS17B3481--2-4------221568.2
TOTAL5738156231613818212-8--21611050.9
%26.417.66.92.810.67.46.03.78.30.95.6-3.7--Individual abundance mineral%

Proportion (number of grains) of heavy minerals concentration in the sediments of Lokoja Formation.

Sample NameS/NZrnTurRtGrtStEpSilTtAndKyMCstHblHypLwsOpq
LOK1S114314-4-4--4----22
LOK1S2B251311-8112739---3236
LOK1S4B35434122-5-4----142
LOK2S241193815331-6-11-253
LOK2S656342-3--3--471-245
LOK2S8669512102108-3-2---31560
TOTAL1003724294322491932548262458

ZTR maturity index and individual percentage mineral of the sediment samples of Lokoja Formation.

CODEZrnTurRtGrtStEpSilTtAndKyMCstHblHypLstTOTAL NON-OPAQUEZ+T+RZTR% INDEX
LOK1S14314-4-4--4----24833.3
LOK1S2B51311-8112739---3631930.2
LOK1S4B5434122-5-4----301240.0
LOK2S21193815331-6-11-522344.2
LOK2S66342-3--3--471-331339.4
LOK2S869512102108-3-2---31248669.4
TOTAL10037242943224919325482632616149.4
%30.711.37.48.91.29.87.42.85.80.97.71.22.50.61.8Individual abundance mineral%
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