Figure G-24 is a photograph of a slabbed rock that experienced two generations of folding. Compare this photograph with the patterns shown in Fig. 8.8; indicate which type of interference pattern is present in the space provided. Place a sheet of tracing paper over the photograph, lightly outline the slab, and then draw and label the S₁ and S₂ axial-surface traces.

Fig. G-24

Transcribed Image Text:

a Type 0 Axial surface F₁ geometry Resulting geometry F₂ displacement b Type 1 F₁ geometry Resulting geometry F₂ displacement