SEDIMENTOLOGY AND PALEOENVIRONMENT OF DEPOSITION OF YOLDE FORMATION OF THE GONGOLA BASIN (UPPER BENUE TROUGH, NIGERIA): DEDUCED FROM GRAIN SIZE DISTRIBUTION

Authors

  • Shettima. B Department of Geology, University of Maiduguri, Borno State.
  • Nabage. N.A Department of Geology, Abubakar Tafawa Balewa University, Bauchi.
  • Sulaiman A Department of Geology, Gombe State University, Gombe.
  • Usman.,M.B Department of Geology, Gombe State University, Gombe.
  • Tabale R.P Department of Geology, Gombe State University, Gombe.

DOI:

https://doi.org/10.56892/bima.v2i01.79

Keywords:

Yolde Formation, Sedimentology, Provenance

Abstract

The Yolde Formation is composed of sandstones, siltstones, mudstones, claystones, shales and
minor limestones. These lithlogic units display a wide variety of colours ranging from brown,
buff variegated colours indicating deposition in an oxidizing environment. Granulometric
analysis showed that the sediments are dominantly moderately sorted and are mostly positively
skewed. The bivariate plots of standard deviation vs. mean, standard deviation vs. skewness,
standard deviation vs. first percentile, mean vs. first percentile and C-M pattern showed a
dominance of fluvial environment. However, that of mean vs. first percentile indicated a
prevalence of coastal environment. The probability curve plots show a dominance of two-sand
population curves, indicating a prevalence of unidirectional currents. Paleocurrent analysis has
shown that the Yolde Formation has a dominant source from the north-eastern direction, but with
very minor contributions from the northwest.

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Published

2018-01-11

How to Cite

Shettima. B, Nabage. N.A, Sulaiman A, Usman.,M.B, & Tabale R.P. (2018). SEDIMENTOLOGY AND PALEOENVIRONMENT OF DEPOSITION OF YOLDE FORMATION OF THE GONGOLA BASIN (UPPER BENUE TROUGH, NIGERIA): DEDUCED FROM GRAIN SIZE DISTRIBUTION. BIMA JOURNAL OF SCIENCE AND TECHNOLOGY (2536-6041), 2(01), 159-183. https://doi.org/10.56892/bima.v2i01.79

Issue

Vol. 2 No. 01 (2018): Vol. 2 No. 1 January 2018

Section

Articles