Consider Bowen's reaction series. Which mineral would you expect to see as a phenocryst in a porphyritic basalt?
A)sodium- rich plagioclase
B)olivine
C)quartz
D)orthoclase

Name: Consider Bowen's reaction series. Which mineral would you expect to see as a phenocryst in a porphyritic basalt? A)sodium- rich plagioclase B)olivine C)quartz D)orthoclase
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Olivine is an early-forming mineral in Bowen's reaction series and is commonly found as phenocrysts in porphyritic basalt.

Consider Bowen's Reaction Series