Page 42 - Microtectonics

30 3 · Deformation Mechanisms

Fig. 3.7. Dissolution of single idiomorphic quartz crystals (arrows) in an ignimbrite. Dark horizontal seams consist of insoluble material
that became concentrated during dissolution. Leonora, Yilgarn Craton, Australia. Width of view 4 mm. PPL

Fig. 3.8. Alveolina limestone showing evidence for stress-induced solution transfer during diagenetic compaction. The four fossils in the
centre show indentation by dissolution and minor ductile deformation as a result of vertical shortening. Eastern Pyrenees, Spain. Width of
view 21 mm. PPL