TABLE OF FIELD ASSOCIATIONS 105 



Table showing Field Associations of Alkaline and Subalkaline Eruptives — Continued. 



Region. 



Alkaline eruptives. 



Associated subalka- 

 line eruptives. 



'-Carbonate rocks cut by 

 alkaline eruptives. 



Tasmania, Port 

 Cygnet, etcetera. 



NepheUte syenites, 

 augite syenite, es- 

 sexite, jacupirang- 

 ite nephelinite, 

 tinguaite, nephel- 

 ite, basalt, meli- 

 lite-nepheUte ba- 

 salt, limburgite, 

 etcetera. 



Diabase. 



Paleozoic lime- 

 stones. 



Timor. 



Foyaite. 



Diabase, andesite. 



Tertiary and Car- 

 boniferous lime- 

 stones. 



Java. 



Tephrite, leucite ba- 

 salt, leucitite. 



Feldspar basalt, 

 andesite. 



? Limestone in older 

 terrane (Verbeek 

 and Fennema). 



Viti Archipelago. 



Foyaite. 



Basalt, gabbro, 

 diabase, granite, 

 etcetera. 



? Crystalline lime- 

 stone in island 

 basement. Young- 

 er limestones ? 



Savaii, Samoa. 



Trachydolerite. 



Olivine basalt. 



? 



Tahiti. 



Nephelite syenite, 

 monzonite, tingua- 

 ite, monchiquite, 

 nephelinitic gab- 

 bro. 



Basalt, gabbro. 



? 



Hawaii. 



Phonolitic trachyte. 



Olivine basalt, au- 

 gite andesite. 



? Ancient coral reefs, 

 oozes, etcetera. 



Maui. 



Melilite - nephelite 

 basalt. 



Ditto. 



? 



Oahu. 



Nephelite basalt, 

 melilite-nephelite 

 basalt. 



Ditto. 



? 



