Influence of depositional environment on coal quality in Jangwa-Shankodi and Lafia-Obi areas, Central Benue Trough, north-central Nigeria

2021 ◽  
Vol 14 (23) ◽  
Author(s):  
Johnson Ogonna Amobi ◽  
Itohowo Moses Ekpo ◽  
Ogechi Clementina Ekwenye ◽  
Ifeanyi Andrew Oha ◽  
Chidubem Okwudiri Emedo
Keyword(s):  
Depositional Environment ◽  
Coal Quality ◽  
North Central ◽  
Benue Trough

Geology, coal quality, and resources of the Antaramut–Kurtan–Dzoragukh coal field, north-central Armenia

2001 ◽  
Vol 45 (4) ◽  
pp. 267-279 ◽  
Author(s):  
Brenda S Pierce ◽  
Artur Martirosyan ◽  
Gourgen Malkhasian ◽  
Samvel Harutunian ◽  
Grigory Harutunian
Keyword(s):  
Coal Field ◽  
Coal Quality ◽  
North Central

scholarly journals Grain Size Analysis, Textural Characterisation and Depositional Environment of Turonian Amasiri Sandstone, Southern Benue Trough, Nigeria

2021 ◽  
Vol 4 (2) ◽  
Keyword(s):  
Grain Size ◽  
Depositional Environment ◽  
Function Analysis ◽  
High Energy ◽  
Coarse Grained ◽  
Grain Size Analysis ◽  
Size Analysis ◽  
Benue Trough ◽  
Shallow Marine ◽  
Wide Range

Grain size analysis of Turonian Amasiri Sandstone in southern Benue Trough has been undertaken to determine the controversial depositional environment of the formation. The formation was first studied on outcrops and 26 representative samples were collected and subjected to particle size analysis in line with standard procedures for dry sieving. Various methods of environmental interpretation of grain size distribution data were applied to constrain the depositional of the sandstones. The result indicates that the sands are medium and coarse-grained with mean size ranging from 0.15 to 1.87φ and averaging 0.96 φ. The sandstones are moderately to poorly sorted with standard deviation values ranging from 0.72 to 1.38 φ and averaging 1.07 φ. They exhibit a wide range of distribution from strongly coarse skewed to strongly fine skewed with skewness values ranging from -2.31 to 1.52 φ and averaging -0.04 φ but indicate a narrow range of kurtosis from mesokurtic to leptokurtic distribution with values ranging from 0.99 to 3.49 φ and an average of 2.06 φ. The sediments have bimodal with minor polymodal and unimodal distribution with primary modal size of 1.2 φ. The bivariate plots of size statistical parameters indicate fluvial environment of deposition. However, linear discriminant function analysis and the interpretations of log-probability plots indicate deposition in a fluvial, beach, and shallow marine settings, and thus suggesting a possible deposition in high-energy transitional environment. The C-M pattern of the samples indicates that sediments were transported mainly by rolling and suspension with subordinate fractions moved by rolling as well as suspension. Thus, it is deduced that Amasiri Sandstone was deposited in fluvial, beach, and agitated shallow marine environments.

In situ trace elements and sulfur isotope analysis of sulfides from the Akiri cu ± (ag) deposit, Benue trough, north-Central Nigeria: Implications for ore genesis

Geochemistry ◽  
2021 ◽  
pp. 125801
Author(s):  
Victor Ikechukwu Vincent ◽  
Huan Li ◽  
Musa Bala Girei ◽  
Michael W. Förster ◽  
Hafizullah Abba Ahmed ◽  
...  
Keyword(s):  
Trace Elements ◽  
Sulfur Isotope ◽  
Isotope Analysis ◽  
Ore Genesis ◽  
North Central ◽  
Benue Trough
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