Generalized Models for Rock Joint Surface Shapes

Figure 6

Typical profile curves of joint surface (sample size is 22 cm and scale is 1 : 3). ① Planar and smooth (carbonaceous slate foliation). ② Planar and rough (coarse-grained granite joint). ③ Undulating (siltstone ripple bedding). ④ Stepped-undulating (siltstone ripple bedding). ⑤ Stepped-undulating (siltstone ripple bedding). ⑥ Stepped-undulating (siltstone ripple bedding). ⑦ Planar-undulating (plagioclase hornblendite joint).