olivine basalt


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olivine basalt

[′äl·ə‚vēn bə′sȯlt]
(petrology)
Any of a group of olivine-bearing basalts.
References in periodicals archive ?
It increases in amount from 19% in the olivine-rich dolerite and basalt to 27% in the olivine basalt and 45% in the average basalt.
According to his analysis both sherds have tempers of moderately-to-well sorted and sub-rounded to rounded stream sands, composed almost exclusively of basaltic fragments (polycrystalline with dominantly intergranular internal texture typical of olivine basalt).
The eight units of the TACB include six of olivine basalt, one basaltic trachyandesite and one trachyandesite.