shale clay

shale clay

[′shāl ‚klā]
(materials)
A clay made from ground shale.
References in periodicals archive ?
The surface of a shale clay mineral has negative charge, attracts the counterions (cations) in the liquid phase in the shale pore, and repels the electrostatic of the same sign ion.
According to the reference range for the cation exchange capacity of each clay mineral, the shale clay mineral content and measured shale cation exchange capacity were fitted to determine the CEC calculated values of the three clay minerals, as shown in Table 2.
Initial water saturation of cores is measured in the range of 20%~60%, which is highly correlated with shale clay mineral content and decreases with the increase of well depth.