Biogeosciences
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Articles | Volume 12, issue 20
Articles | Volume 12, issue 20
https://doi.org/10.5194/bg-12-5899-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-12-5899-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 12, issue 20
Research article
 | 
16 Oct 2015
Research article |  | 16 Oct 2015

Stable isotope paleoclimatology of the earliest Eocene using kimberlite-hosted mummified wood from the Canadian Subarctic

B. A. Hook, J. Halfar, Z. Gedalof, J. Bollmann, and D. J. Schulze

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Short summary
The recent discovery of mummified wood (non-petrified) within kimberlite diamond mines in Northwest Territories, Canada, has prompted a paleoclimatic investigation of the time in which the trees grew - the earliest Eocene (ca. 53.3 Ma). Multiple proxy records derived from these samples suggest that during greenhouse climates of the Eocene, subarctic Canada was characterized by high temperatures (+16 C above modern), and multidecadal variability in cloudiness and temperature on 20-30 year cycles.
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