168 



JV.Z. 



Bowen— 



■Crystallization of 



Haplobasaltic, 









Table 



III. 







Composition 



Tempera- 







Anorthite Albite 



Diopside 



ture 



Time 



Eesult 



74 



16 



10 



1484 



4 hi. 



Glass only 



74 



16 



10 



1479 



£hr. 



Glass and plagioclase 



56 



20 



24 



1402 



*hr. 



Glass and plagioclase 



56 



20 



24 



1405 



1 hr. 



Glass only 



37 



18 



45 



1255 



1 hr. 



Glass and plagioclase 



37 



18 



45 



1259 



1 hr. 



Glass only 



34 



16 



50 



1265 



1 hr. 



Glass and diopside 



34 



16 



50 



1269 



1 hr. 



Glass only 



44 



41 



15 



1372 



ihr. 



Glass and plagioclase 



44 



41 



15 



1377 



*hr. 



Glass only 



42 



33 



25 



1337 



£ hr. 



Glass and plagioclase 



42 



33 



25 



1341 



*hr. 



Glass only 



36 



34 



30 



1296 



1 hr. 



Glass and plagioclase 



36 



34 



30 



1300 



1 hr. 



Glass only 



32 



30 



38 



1248 



1 hr. 



Glass and plagioclase 



32 



30 



38 



1253 



1 hr. 



Glass only 



26 



24 



50 



1273 



1 hr. 



Glass and diopside 



26 



24 



50 



1277 



1 hr. 



Glass only 



10 



12 



78 



1343 



ihv. 



Glass and diopside 



10 



12 



78 



1347 



ihr. 



Glass only 



26 



49 



25 



1256 



lhr. 



Glass and plagioclase 



26 



49 



25 



1261 



1 hr. 



Glass only 



24 



46 



30 



1222 



1 hr. 



Glass and plagioclase 



24 



46 



30 



1226 



1 hr. 



Glass only 



21 



39 



40 



1250 



1 hr. 



Glass and diopside 



21 



39 



40 



1254 



1 hr. 



Glass only 



16 



25 



59 



1298 



1 hr. 



Glass and diopside 



16 



25 



59 



1302 



1 hr. 



Glass only 



25 



62 



13 



1303 



1 hr. 



Glass and plagioclase 



25 



62 



13 



1307 



1 hr. 



Glass only 



17 



65 



18 



1240 



1 hr. 



Glass and plagioclase 



17 



65 



18 



1244 



1 hr. 



Glass only 



15 



60 



25 



1208 



1 hr. 



Glass and diopside 



15 



60 



25 



1212 



lhr. 



Glass only 



14 



76 



10 



1252 



1 hr. 



Glass and plagioclase 



14 



76 



10 



1255 



1 hr. 



Glass only 



10 



75 



15 



1197 



1 hr. 



Glass and plagioclase 



10 



75 



15 



1202 



1 hr. 



Glass only 



9 



75 



16 



1180 



1 hr. 



Glass, plagioclase and 

 diopside 



9 



75 



16 



1183 



1 hr. 



Glass only 



5 



85 



10 



1175 



1 hr. 



Glass and plagioclase 



5 



85 



10 



1180 



1 hr. 



Glass only 



4 



85 



11 



1150 



1 hr. 



Glass, plagioclase and 

 diojjside 



4 



85 



11 



1155 



1 hr. 



Glass only 



