抄録
The physical, chemical, mineralogical and firing characteristics of the grey clayshale of the Imo Formation and the overlying reddish-brown sandy and silty clay of the Ososun Formation were studied. X-ray analysis shows that montmorillonite is the dominant clay mineral in the clay-shale while kaolinite is dominant in the reddish-brown clay. The pH determinations indicate a marine environment of deposition for the clay-shale and a continental origin for the reddish-brown clay .
Various tests for economic evaluations indicate that the clay-shale can be used as components of drilling fluid and as a source of catalyst in the petrochemical industry, while the reddish-brown clay can be used in the manufacture of bricks, fl oor tiles and pottery.
