alkali basalt en · NOUN
Meanings
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An alkaline variety of basalt.
The largest central volcanoes (Peak Range and Springsure) occupy the 'swell' in that arc, which peters out southwards into tholeiitic and finally subsurface alkali basalt intrusives (Roma drilling results).
2003, R. R. Hillis, Evolution and Dynamics of the Australian Plate, page 213:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| alkali basalts | Number=Plur | lexicographic |