Little Lake
Location: |
Washington, USA |
Latitude (N): |
|
Longitude (W): |
|
Site notes: |
|
- Grigg, L. D., and C. Whitlock 2002
- Patterns and Possible Causes of Millennial-Scale Climate Change
in Western North America.
In American Quaternary Association (AMQUA) Program and
Abstracts of the Seventeenth Biennial Meeting. pp. 48-50.
Environmental Change and Human Migrations in the North Pacific
Basin. August 8-11, 2002, University of Alaska Anchorage, Alaska.
Sites discussed: Carp Lake, Fargher Lake,
Little Lake. Reviews data from these sites that have a bearing on
climate changes in MIS3 (60,000 - 27,000 cal yr BP) and MIS2
(27,000 - 14,100 cal yr BP). Records show a series of changes on
the scale of 1000 to 3000 yrs in MIS3. Pollen assemblage changes
suggest these may be reflective of winter temperature changes.
Suggest that these may be related to shifts in the strength of the
Aleutian Low in the north Pacific. In MIS2, pollen assemblage
changes suggest alteration between wetter and dryer conditions,
again at 1000 to 3000 yr scale, but with more variability than in
MIS3. Notes similarity in timing of events from Pacific Northwest
with those from North Atlantic, perhaps driven by change in height
of Laurentide Ice Sheet and its effect on air mass circulation
patterns. (19/12/2007).
- Long, C. J., and C. Whitlock 2002
- Millennial- to Decadal-Scale Fire and Vegetation History of the
Southern Temperate Rain Forest, Northwestern North America.
In American Quaternary Association (AMQUA) Program and
Abstracts of the Seventeenth Biennial Meeting. pp. 80.
Environmental Change and Human Migrations in the North Pacific
Basin. August 8-11, 2002, University of Alaska Anchorage, Alaska.
Sites discussed: Lost Lake, Little Lake,
Taylor Lake. Examined high-resolution charcoal and pollen records.
Sites are from different present ecozones. Charcoal suggests fire
more fequent in early Holocne, possibly correlated to droughts.
Timing of fire episodes appears to match between sites, suggesting
regional drought conditions. (19/12/2007).
This presentation has been compiled and is
© 1998-2024 by
Alwynne B. Beaudoin (abeaudoi@gpu.srv.ualberta.ca)
You are visitor #
1707