TABLE OF FIELD ASSOCIATIONS 97 



Tjble showing Field Associations of Alkaline and Suball-aline Eruptives— Continued. 



SOUTH AMERICA 



Sao Paulo, Brazil. 



Nephelinite, tesch- 

 enite, vogesite, ja- 

 cupirangite, foya- 

 ite, augite syenite, 

 laurvikite, augit- 

 ite, limburgite. 



! 



Diabase, diorite. ' Paleozoic lime- 

 stone in cla}'- 

 slates, etcetera. 

 (Also p re-Cam - 

 brian limestones?) 



Caldas, etcetera, 

 Brazil. 



Foyaite, phonolite, 

 leucitophyre. 



! ? 



! 



; 



Paraguay. 



Phonolite, limbur- 

 gite. 



? 



Salta Province, Ar- 

 gentine. 



Trachydolerite, es- 

 sexite. 



1 



San Juan Province, 

 Argentine. 



Nephelite basalt, 

 e s s e X i t e, tra- 

 c h y t e-tephrite, 

 limburgite. 



Feldspar basalt, Paleozoic (?) and 

 andesites, da- Jurassic lime- 

 cite, etcetera. stones. 



! 



YII — Bull. Geol. Soc. A.m., Vol. 21, 1909 



