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

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

doi:https://doi.org/10.5194/bg-12-5899-2015

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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Final revised paper (published on 16 Oct 2015)
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Preprint (discussion started on 26 Nov 2014)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C9388: 'The oldest tree ring dual-isotope analysis', Anonymous Referee #1, 14 Jun 2015
- AC C9397: 'Author comment regarding manuscript bg-2014-517 - Response to Referee #1', Benjamin Hook, 17 Jul 2015
RC C9448: 'comments_bgd-11-16269-2014', Anonymous Referee #2, 08 Sep 2015
- AC C9449: 'Author response to Reviewer #2', Benjamin Hook, 11 Sep 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish as is (29 Sep 2015) by Xinming Wang

AR by Benjamin Hook on behalf of the Authors (06 Oct 2015) Author's response Manuscript

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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.