Linking the10Be continental record of Lake Baikal to marine and ice archives of the last 50 ka: Implication for the global dust-aerosol input

A. Aldahan, G. Possnert, J. Peck, J. King, S. Colman

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

We present here a 10Be profile from the continental sediments of Lake Baikal (the world's largest fresh water lake), which, for the first time, shows the ≈ 40 ka 10Be enhancement and a pattern that strongly matches those from the marine and ice records for the last 50 ka. This finding provides a new horizon for global and regional correlation of continental archives. Additionally, our VADM-predicted 10Be production confirms and further strengthens a common global cause (geomagnetic field intensity) for the change in atmospheric 10Be over the last 50 ka. We also show that most of the 10Be inventory to the lake has been provided by riverine input, but with a significant addition from direct precipitation and dust-aerosol fallout. We estimate a higher dust-aerosol contribution of 10Be during the Holocene and interstadial stage 3 (22-50 ka) as compared with the glacial period (12-22 ka).

Original languageEnglish
Article number1999GL900469
Pages (from-to)2885-2888
Number of pages4
JournalGeophysical Research Letters
Volume26
Issue number18
DOIs
Publication statusPublished - Sept 15 1999
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • General Earth and Planetary Sciences

Fingerprint

Dive into the research topics of 'Linking the10Be continental record of Lake Baikal to marine and ice archives of the last 50 ka: Implication for the global dust-aerosol input'. Together they form a unique fingerprint.

Cite this