The petrographic composition of Cretaceous-age coals hosted in the Benue Trough, Nigeria is presented and discussed in terms of the paleodepositional settings that influenced the coal-bearing formations. The Benue Trough is a failed arm of the triple junction of an inland sedimentary basin that extends in a NE-SW direction from the Gulf of Guinea in the south, to the Chad Basin in the north. A total of twenty-nine (29) coal samples were obtained from nineteen coal localities in the Upper (UBT), Middle (MBT), and Lower Benue Trough (LBT). The high average volatile matter yield, low average ash yield, high calorific value (24.82 MJ/kg, on average), and low sulphur values indicate good quality coal deposits. The organic matter is dominated by vitrinite, reported at an average of 59.3% by volume (mineral-matter free). Variation was noted in the inertinite content across three sub-regions. Liptinite macerals were not commonly observed in the studied samples and were absent in the MBT samples. Coal facies studies decipher the paleoenvironmental conditions under which the vegetation accumulated. Indices commonly used are the gelification index (GI), tissue preservation index (TPI), ground water index (GWI and variations), vegetation index (VI), and wood index (WI). Comparing the array of coal facies models applied, the MBT samples differ from the UBT and LBT samples, concurring with the coal quality data. The UBT and LBT coals formed in an upper deltaic to drier piedmont plane depositional environment, while the MBT coal formed in a lower deltaic marsh to wet forest swamp depositional environment. All samples indicate an ombrotrophic paleomire. In view of the modified equations and the plots used, interpreting depositional environments from just a single model is not reliable.

根据影响含煤地层的古沉积环境，介绍并讨论了尼日利亚 Benue Trough 中白垩纪煤的岩相组成。Benue Trough 是内陆沉积盆地三重交汇处的一个失效臂，从南部的几内亚湾沿 NE-SW 方向延伸到北部的乍得盆地。从上 (UBT)、中 (MBT) 和下贝努埃槽 (LBT) 的 19 个煤产地获得了总共二十九 (29) 个煤样。高平均挥发分产量、低平均灰分产量、高热值（平均 24.82 MJ/kg，平均）和低硫值表明煤层质量良好。有机质以镜质体为主，按体积计算平均为 59.3%（不含矿物质）。注意到三个子区域的惰性物质含量存在差异。在所研究的样品中通常没有观察到 Liptinite macerals 并且在 MBT 样品中不存在。煤相研究破译了植被积累的古环境条件。常用的指标有凝胶化指数（GI）、组织保存指数（TPI）、地下水指数（GWI和变化）、植被指数（VI）和木材指数（WI）。比较所应用的一系列煤相模型，MBT 样品不同于 UBT 和 LBT 样品，与煤炭质量数据一致。UBT和LBT煤形成于上三角洲至干燥的山前平面沉积环境，而MBT煤形成于下三角洲沼泽至潮湿森林沼泽的沉积环境。所有样本都表明是一个营养丰富的古生物。