BULL. GEOL. SOC. AM 



VOL. 21, 1909, PL. 3 



ORTHOCLASE FRAGMENT BENT AT 1200° UNDER LOAD (20 DIAMETERS) 



A cleavage crack (dotted) has retained its orientation, alttiough the fragment is 

 melted through. The melted (dark) material is not squeezed out or otherwise displaced 

 hy the bending more than the unmelted original orthoclase. 



