Lithic artefacts are usually associated with the different knapping methods used in their production. Flakes exhibit metric and technological features representative of flaking method to detach them. However, lithic production is a dynamic process which discrete can be blurred, vary throughout process. An intermediate between discoid Levallois commonly referred under an umbrella terms (the pres...

Blank size and form represent one of the main sources of variation in lithic assemblages. They reflect economic properties of blanks and factors such as efficiency and use life. These properties require reliable measures of size, namely edge length and surface area. These measures, however, are not easily captured with calipers. Most attempts to quantify these features employ estimates; however...

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. ...