Big Watab Lake
| Location: | Minnesota, USA | Latitude (N): | 45.55° | Longitude (W): | 94.45° |
|---|---|---|---|---|---|
| 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).
This presentation has been compiled and is ©
Alwynne B. Beaudoin (bluebulrush@gmail.com)