The annealing effect of an alkali borate type glass below its softening point was investigated according to the Na2O-B2O3 binary system. samples were doped by introducing different amounts copper oxide (CuO). properties elaborate glasses before and after studied. X-ray diffraction (XRD) as well optical infrared spectroscopy used in this study. results obtained show that annealing, is, a heat tr...

Ten road cut samples collected from five lithological sections of Lokoja sandstone formation in the Middle Niger basin were investigated using integrated granulometric, petrographic and geochemical analyses. Results of grain size analysis; standard deviation and skewness which ranges from 0.08 to -0.05 and 0.59 to -0.07 respectively suggest very well sorted to moderately well sorted sediments. ...