Seasonal variations in the origin of lead in snow at Dye 3, Greenland

K. J.R. Rosman, W. Chisholm, C. F. Boutron, J. P. Candelone, J. L. Jaffrezo, C. I. Davidson

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

The isotopic composition and concentration of lead has been measured in fresh and slightly aged snow collected at Dye 3 in southern Greenland during one full year. The lead concentration displayed large variations ranging from 14-3016 pg/g in April (spring) to 3-6 pg/g in September (summer) while the isotopic ratios changed in regular manner during the year. The 206Pb/207Pb ratios were ~1.15 from spring to mid-summer snow, and increased in late summer to early autumn, reaching ~1.20 in winter. These isotopic data indicate that the lead in the autumn to winter snow originated in North America, while that in spring to mid-summer snow is from Eurasia.

Original languageEnglish (US)
Pages (from-to)383-389
Number of pages7
JournalEarth and Planetary Science Letters
Volume160
Issue number3-4
DOIs
StatePublished - Aug 1998
Externally publishedYes

Keywords

  • Greenland
  • Isotope ratios
  • Isotopic composition
  • Lead
  • Seasonal variations
  • Seasonality
  • Snow

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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    Rosman, K. J. R., Chisholm, W., Boutron, C. F., Candelone, J. P., Jaffrezo, J. L., & Davidson, C. I. (1998). Seasonal variations in the origin of lead in snow at Dye 3, Greenland. Earth and Planetary Science Letters, 160(3-4), 383-389. https://doi.org/10.1016/S0012-821X(98)00098-3