Contents of 11.4 How do we know ... why some rocks break and others flow?

$Diagram shows plastic flow and brittle fracture$

Graph shows relationship of temperature on compressive stress and shortening strain

Fig 11.20

11.4 How do we know ... why some rocks break and others flow?

Fig 11.19

Stress and strain relationships when varying confining pressure (11.19) versus temperature and water content (11.20). Clearly both have effects, although the latter has a more marked differentiation.