The mineralogy of some carbonate rocks from the Abakaliki Basin has been investigated to determine the depositional environment classification and assess the suitability of the rocks for application in geotechnical construction and industrial process systems. The method of investigation included field mapping and petrographic and geochemical techniques to characterize their field characteristics, mineral types and texture and chemical contents. Mapping revealed two lithologic units of sandstone and shale that associate with the carbonates in a similar sequence. The carbonates contain fossils and are composed of calcite, quartz and rockclasts. The grains have angular to sub-rounded sphericity and are dispersed in hetereolithic groundmass. The major oxide composition shows average value of 32.30wt% SiO₂, 26.37wt% CaO, 7.23wt% MgO, 6.56wt% Fe₂O₃, 4.38wt% Al₂O₃, and 3.23wt% K₂O + Na₂O in decreasing order of abundance. Concentrations of trace elements are significantly higher (> 100 ppm) for V, Cr, Sr, Zr, Cu, Ba, Pb and Zn and comparatively lower for Sb, Ge, Ce, Y, As, Hg, Tiand Au. The studied rocks qualify as biomicrite or wackestone and range from dolomitic, through carbonaceous to siliceous limestone deposited in a wide spectrum of environment from shallow marine to transitional setting. The rocks are marginally suitable for use as aggregates due to the presence of deleterious contents of quartz and organics. For cement production, their low content of CaO, relatively high SiO₂, comparatively high LOI and elevated abundances of contaminant heavy elements are major limitations. Similarly, in paper, plastic, paint, metallurgy and pharmaceutics, the rocks are unsuitable due to the constituent minerals.

对阿巴卡利基盆地的一些碳酸盐岩的矿物学进行了研究，以确定沉积环境分类并评估岩石在岩土工程和工业加工系统中应用的适用性。调查方法包括野外测绘、岩相学和地球化学技术，以表征其野外特征、矿物类型、结构和化学含量。绘图揭示了砂岩和页岩的两个岩性单元，它们以相似的顺序与碳酸盐岩相关。碳酸盐含有化石，由方解石、石英和岩屑组成。颗粒呈有角至亚圆形的球形，分散在异石质基质中。主要氧化物组成的平均值为32.30wt% SiO ₂、26.37wt% CaO、7.23wt% MgO、6.56wt% Fe ₂ O ₃、4.38wt% Al ₂ O ₃和3.23wt% K ₂ O + Na ₂ O 按丰度递减顺序。 V、Cr、Sr、Zr、Cu、Ba、Pb 和 Zn 的微量元素浓度明显较高（> 100 ppm），而 Sb、Ge、Ce、Y、As、Hg、Ti 和 Au 的微量元素浓度相对较低。研究的岩石属于生物微晶或硅灰岩，范围从白云质到碳质到硅质石灰岩，沉积在从浅海到过渡环境的各种环境中。由于存在有害的石英和有机物，这些岩石不太适合用作骨料。对于水泥生产来说，其低CaO含量、相对高的SiO ₂、相对高的LOI和污染物重元素的丰度是主要限制。同样，在造纸、塑料、油漆、冶金和制药领域，岩石由于其成分矿物而不适用。