The origin of south Siberian radiogeochemically specialized volcanites

L. P. Rikhvanov, G. S. Plyusnin, V. V. Yershov, G. M. Komarnitskiy, Y. A. Pakhol'chenko, G. P. Sandimirova

Research output: Contribution to journalArticlepeer-review


The elevated uranium levels in Devonian acid volcanites are syngenetic. The contrasty volcanic series has a single common Rb-Sr isochron corresponding to 413±13 My and indicates a single magmatic source for the acid and basic effusives. The original Sr ratio in the magma source was 0.7043±0.0006 and corresponds to the range of similar values for island-arc basalts (0.7033-0.7051). It is assumed that the generation of the magmas involved mantle material. -Journal summary

Original languageEnglish
Pages (from-to)69-79
Number of pages11
JournalGeochemistry International
Issue number7
Publication statusPublished - 1988

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

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