422 K T. Allen, F. K Wright and J. K. Clement- 

 ly 











































































































































































































































































































































































15000 . _ 









































(1460°) ) 





















































I 















=^ = 

























/ 



I 







































/ , 







































/ 

































xti 









// 

































o 

 >; 







/ 



/ 

































O 







/ 



V 

































S 







// 



i 

































3 14000 







/ 



































2 









































c3 

















































































a 









































H 



















































































^j 

















































































i 







































13000 











































I 









































/ 









































7 

















































































\ 































































































































































12000 









































(1230°) 









































Time— 1 division = 1 minute. 



Fig. 14. I = Orthorhombic amphibole. 



II = Enstatite. 

 Ill = Monocline pyroxene. 



