mugearite


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mugearite

[myü′jē·ə‚rīt]
(petrology)
A dark-colored, fine-grained igneous rock in which the chief feldspar is oligoclase, plus orthoclase and olivine with some apatite and opaque oxides; originates by differentiation and volcanic crystallization of the primary magma.
References in periodicals archive ?
Lavas recovered from Bowie seamount range from alkalic basalt and basanite through hawaiite, mugearite and benmoreite (Engel et al.
The lavas consist of alkatic basalts, hawaiites, mugearites and benmoreites (Fig.
Post-shield lavas are generally enriched in K-, Na-, and P-bearing minerals such as hawaiite, mugearite, and trachyte (Macdonald et al.