alkali basalts  search
BTigneous rocks
 .volcanic rocks
 ..basalts
 ...alkali basalts
NTalkali olivine basalt
 ankaratrite
 basanite
 crinanite
 hawaiite
 mugearite
 nepheline basalt
 spilite
 tephrite
 trachybasalts
 trachydolerite
UFalkalic basalt
 alkaline basalt
RTleucitite
 melilitite
 nephelinite
 ocean-island basalts