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White & Hofmann 1982

White, W.M. and Hofmann, A.W. (1982). Sr and Nd isotope geochemistry of oceanic basalts and mantle evolution. Nature 296(5860): 821-825.

Sr and Nd isotope ratios are reported for 17 mid-ocean ridge basalts and for 11 oceanic islands and island groups. Data from the Azores, Samoa and the Society Islands diverge significantly from the mantle array. These results are not explained by binary mixing of depleted and undepleted mantle reservoirs or by variable magmatic depletion of a planetary reservoir, but support mantle evolution models involving re-injection of crust material into the mantle.

Keywords
alkaline earth metals; Antarctica; Atlantic Ocean; Atlantic Ocean, Islands; Azores; basalts; composition; crust; East Pacific; East, Pacific Ocean Islands; East Pacific Rise; evolution; French, Polynesia; geochemistry; Hawaii; igneous rocks; Indian Ocean, Islands; isotopes; Kerguelen Islands; magmas; mantle; metals;, Mid-Atlantic Ridge; Nd-144/Nd-143; neodymium; Oceania; oceanic, crust; Pacific Ocean; plate tectonics; pollution; Polynesia; rare, earths; Samoa; Society Islands; South Atlantic islands;, Sr-87/Sr-86; stable isotopes; strontium; tectonophysics; United, States; volcanic rocks, 02D, Isotope geochemistry

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

Publisher
Nature Publishing Group
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