EarthRef.org Reference Database (ERR) -- Chen & Frey 1983

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Chen & Frey 1983

Chen, C.-Y. and Frey, F.A. (1983). Origin of Hawaiian tholeiite and alkalic basalt. Nature 302(5911): 785-789.

Haleakala Volcano consists of a tholeiitic basalt shield overlain by alkalic lavas. As a function of decreasing age, La/Ce, Ba/La, Nb/La Rb/Sr and 143Nd/144Nd increase but Sm/Nd and 87Sr/86Sr decrease. Inverse correlations between these isotopic ratios and their respective parent/daughter abundance ratios are consistent with mixing of melts derived from an enriched mantle composition with melts formed by < 1 % melting of a mid-ocean ridge basalt source.

Keywords
alkali basalts; alkaline earth metals; basalts; chemical, composition; East Pacific Ocean Islands; enrichment; genesis;, geochemistry; Hakeakala Volcano; Haleakala; Hana; Hawaii;, Honomann; igneous rocks; isotopes; Kule; lava; magmas; mantle;, Maui County Hawaii; melting; metals; Nd-144/Nd-143; neodymium;, Oceania; partial melting; petrology; Polynesia; provenance; rare, earths; ratios; Sr-87/Sr-86; stable isotopes; strontium;, tholeiite; trace elements; United States; upper mantle; volcanic, rocks, 05A Igneous and metamorphic petrology; 02D Isotope geochemistry

Journal
Nature
http://www.nature.com/nature/

Publisher
Nature Publishing Group
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