Olivine phenocrysts of Hawaiian olivine tholeiite and oceanite

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1982 English Publisher:Springer Science and Business Media LLCJournal:Contributions to Mineralogy and Petrology, volume 81, pages 203-211 (issn: 0010-7999, eissn: 1432-0967,

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Authors: Sven Maal�e; Birger Hansen;

doi: 10.1007/bf00371297

Olivine phenocrysts of Hawaiian olivine tholeiite and oceanite

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Abstract

Olivine phenocrysts of Hawaiian tholeiites display a variety of textures and a variation in composition which is due to supercooled crystallization. The highest forsterite content measured is 91%, and the highest magnesia content estimated for a tholeiitic liquid is 17%, using the olivine geothermometer. The liquid of this composition may be either a primary magma or a primitive magma. It is not yet possible to specify any particular composition range for the primary Hawaiian tholeiites.

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