Alwynne B. Beaudoin - Lake File

Lake Mina

Location: Minnesota, USA Latitude (N): 45.89° Longitude (W): 95.48°
Site notes:
Stevens, L. R. 1994
Stable-Isotopic Signatures of Feshwater Carbonates Across the Spruce/Pine Transition in Minnesota. In American Quaternary Association (AMQUA) Program and Abstracts of the Thirteenth Biennial Meeting. p. 163. June 19- 22, 1994, University of Minnesota, Minneapolis.
Sites discussed: Lake Mina, Big Watab Lake. Investigation of causes of spruce decline, which occurred between about 12,100 to 11,800 cal yr BP in this area. Isotopic signatures used as a proxy for temperature. Neither record shows evidence of substantial temperature changes at this time that might be implicated in restriction of spruce to areas further north. (16/12/2007).

St Jacques, J., B. F. Cumming, and J. P. Smol 2008
A statistical method for varve verification using seasonal pollen deposition. Journal of Paleolimnology 40:733-744.
AEU SCI QE 39.5 P3 J86 DOI: 10.1007/s10933- 008-9196-4 Site discussed: Lake Mina.

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