TABLE OF FIELD ASSOCIATIONS 107 



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



Region. 



Alkaline eruptives. 



Associated subalka- 

 line eruptives. 



Carbonate rocks cut by 

 alkaline eruptives. 



Canary Islands. 



Phonolite, trachy- 

 dolerite, basanite, 

 nephelinite, lim- 

 burgite, tephrite, 

 essexite, nephelite 

 syenite, monzon- 

 ite, camptonite, 

 bostonite, gauteite, 

 limburgite, nord- 

 markite, p u 1 a s - 

 kite, akerite. 



Feldspar basalt. 



? Mesozoic and Pale- 

 ozoic limestones 

 beneath volcanoes? 

 Limestone on Fu- 

 erteventura. (Con- 

 tinuation of Atlas 

 Mountains lime- 

 stone formations?) 



Cape Verde Islands. 



Foyaite, syenite, 

 phonolite, leucit- 

 ite, tephrite, ba- 

 sanite, nephelin- 

 ite, nephelite ba- 

 salt, limburgite, 

 etcetera. 



Diabase, basalt, 

 diorite, etcetera 



?Limestones of 

 Mayo, S. Thiago, 

 andPraya islands? 



Greenland. 



Foyaite, sodalite sy- 

 enite, lujaurite, 

 etcetera. 



Diorite, granite. 



? (Pre-Cambrian 

 limestones?) 



Columbretes (Med- 

 iterranean). 



Phonolite, trachyte. 



Olivine basalt. 



? 



Monte Ferru, Sar- 

 dinia. 



Phonolite, trachy- 

 dolerite, leucite 

 basanite, leucite 

 basalt. 





Tertiary limestones 

 and marls (older 

 limestones?). 



Pantelleria. 



Phonolite, trachy- 

 dolerite. 



Feldspar basalt, 

 olivine basalt of 

 Ferdinandea Is- 

 land (1831). 



? (Tertiary and Meso- 

 zoic limestones?) 



Lipari Islands. 



Leucite basanite, 

 trachydolerite, et- 

 cetera. 



Basalt, liparite. 



? (Tertiary and Meso- 

 zoic limestones?) 



