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Isotopic and trace element variations in the Ruby Batholith, Alaska, and the nature of the deep crust beneath the Ruby and Angayucham Terranes

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Isotopic and trace element variations in the Ruby Batholith, Alaska, and the nature of the deep crust beneath the Ruby and Angayucham Terranes; 1989; Article; Journal; Journal of Geophysical Research; Arth, J. G.; Zmuda, C. C.; Foley, N. K.; Criss, R. E.; Patton, Jr, W. W.; Miller, T. P.

Summary

Thirty-six samples from plutons of the Ruby batholith of central Alaska were collected and analyzed for 22 trace elements, and many were analyzed for the isotopic compositions of Sr, Nd, O, and Pb in order to delimit the processes that produced the diversity of granodioritic to granitic compositions, to deduce the nature of the source of magmas at about 110 Ma, and to characterize the deep crust beneath the Ruby and Angayucham terranes. Plutons of the batholith show a substantial range in initial 87Sr/86Sr (SIR) of 0.7055–0.7235 and a general decrease from southwest to northeast. Initial 143Nd/144Nd (NIR) have a range of 0.51150–0.51232 and generally increase from southwest to northeast. The δ18O values for most whole rocks have a [...]

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Type Scheme Key
local-index unknown 70014955
local-pk unknown 70014955
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1029/JB094iB11p15941
series unknown Journal of Geophysical Research B: Solid Earth

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citationTypeArticle
journalJournal of Geophysical Research B: Solid Earth
languageEnglish
parts
typevolume
value94
typeissue
valueB11

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