Sources of rhenium and osmium enrichment in fumaroles, sulphide sublimates and volcanic rocks from the Kudriavy volcano

  • Svetlana G. Tessalina
  • Françoise Capmas
  • Jean-Louis Birck
  • Claude-Jean Allègre
  • Marina A. Yudovskaya
  • Vadim V. Distler
  • Ilya V. Chaplygin
Conference paper

DOI: 10.1007/3-540-27946-6_214

Cite this paper as:
Tessalina S.G. et al. (2005) Sources of rhenium and osmium enrichment in fumaroles, sulphide sublimates and volcanic rocks from the Kudriavy volcano. In: Mao J., Bierlein F.P. (eds) Mineral Deposit Research: Meeting the Global Challenge. Springer, Berlin, Heidelberg

Abstract

Rhenium loss through magma degassing could be partly balanced by rhenium enrichment in fumarolic magmatic gases and Re-bearing precipitates, as may be the case for the Kudriavy volcano associated with an active subduction zone. The relatively unradiogenic 187Os/188Os isotope ratios (0.122 up to 0.152) and high Os contents (averaging 0.6 ppb) of fumarolic gas condensates imply that significant Re and Os are remobilised from depleted MORB mantle. Involvement of a Re-rich component is evident from high Re concentrations in high-temperature gas condensates, ranging from 7 to 200 ppb. Indeed, Re-rich Os-poor components such as organic-rich subducted sediments and volcanic rocks do not significantly shift the isotopic composition of fumarolic products. The relatively radiogenic composition of the dacite-andesite-basaltic arc volcanics (187Os/188Os ratio up to 0.58), however, could result from significant Os (and Re) input from subducted sediments.

Keywords

Re-Os subduction zone rheniite Kurile Islands Kudriavy 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Svetlana G. Tessalina
    • 1
  • Françoise Capmas
    • 1
  • Jean-Louis Birck
    • 1
  • Claude-Jean Allègre
    • 1
  • Marina A. Yudovskaya
    • 2
  • Vadim V. Distler
    • 2
  • Ilya V. Chaplygin
    • 2
  1. 1.Laboratoire de Geochimie et CosmochimieInstitute de Physique du GlobeParisFrance
  2. 2.Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM)RASMoscowRussia