A talus is an accumulation of weathered fragments on a slope. It is a thick layer resulting from the movement of rock fragments down slope from a rock face. After, it forms a scree at the base of a cliff face.
The clay talus forms with a process that takes time. First the clay is eroded. As a result of this it moves down slope covering the globigerina limestone. In this manner the overlying rock which is the Upper Coralline Limestone will have no pediments on which it can stand and it also falls and breaks into boulders which fall upon the eroded blue clay slope.