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alkali basalt. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Noun
alkali basalt (plural alkali basalts)
- (geology) An alkaline variety of basalt.
2003, R. R. Hillis, Evolution and Dynamics of the Australian Plate, page 213: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).
Derived terms