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Macdonald & Katsura 1964

Macdonald, G.A. and Katsura, T. (1964). Chemical composition of Hawaiian lavas. Journal of Petrology 5(1): 82-133.

A study of 143 new chemical analyses of Hawaiian lavas shows that the primitive rocks of all Hawaiian volcanoes are tholeiitic, in volcanoes that later produced hawaiites and ankaramites as well as in those that produced mugearites and trachytes. Transition with complete chemical gradation from tholeiitic to alkalic basalt occurs in the upper part of the caldera-filling sequence in the volcanoes that produced hawaiite, and in the upper part of the shield below the basal unconformity of the mugearitic cap in the volcanoes that produced mugearite and trachyte. Within the tholeiitic and alkalic suites, differentiation is largely controlled by fractional crystallization; felsic end members are rhyodacite and soda trachyte, respecitvely.

Keywords
basaltic composition; Basaltic lavas; basalts; based on normative, and modal compositions; chemical analysis; chemical composition;, classification; composition; East Pacific Ocean Islands;, geochemistry; Hawaii; igneous rocks; lava; lava composition;, magmas; magmas and magmatic differentiation; Oceania; petrology;, Polynesia; sequences in volcanoes; Stages of growth; tholeiitic, and alkalic suites; tholeiitic-alkalic basalt transition;, tholeiitic-alkalic transition; transition and differentiation;, United States; volcanic rocks; volcanism; volcanoes, 05, Igneous and metamorphic petrology

Journal
Journal of Petrology
http://petrology.oupjournals.org/

Publisher
Oxford University Press
Great Clarendon Street
Oxford OX2 6DP
U.K.
+44-(0)-1865-267907
+44-(0)-1865-267485
jnl.info@oup.co.uk