Magmatic differentiation in the Uwekahuna Laccolith, Kilauea Caldera, Hawaii

Journal of Petrology
By:  and 

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Abstract

Petrographic and chemicoal studies of a suite of rocks from the Uwekahuna laccolith of Kilauea Volcano show that the original mafic tholeiitic magma differentiated into tholeiitic picrite, tholeiitic olivine gabbro, and an aphanitic rock approaching quartz-basalt in composition. Mechanisms involved were an initial gravity settling of olivine and a final filter pressing of the residual liquid. The range of composition represented by the rocks of the laccolith is as great as that found among all hitherto analysed lavas of the volcano. 

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Publication type Article
Publication Subtype Journal Article
Title Magmatic differentiation in the Uwekahuna Laccolith, Kilauea Caldera, Hawaii
Series title Journal of Petrology
DOI 10.1093/petrology/2.3.424
Volume 2
Issue 3
Year Published 1961
Language English
Publisher Oxford University Press
Description 14 p.
First page 424
Last page 437
Country United States
State Hawaii
Other Geospatial Kilauea
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