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Earth Institute News
posted 02/03/00 01:OO P.M. EST Tree-Ring Evidence Confirms
Photos:
Oquilluk, W. A. 1973. "People of Kauwerak: Legends of the Northern Eskimo".
American Methodist University, Anchorage, Alaska, 242 p. with the
assistance of Laurel L. Bland.
Gordon Jacoby extracting a core from a white spruce tree near
treeline in Alaska. One can see the core sample on the extractor coming out
of the tree between the two hands. Only a small hole is left in the tree.
It fills with sap and heals in one or two growing seasons.
Gordon Jacoby holding the handle of his corer in front of a
350-year old white spruce in Alaska. Samples are taken from living trees
and also dead trees like the horizontal one lying on the ground. Dead trees
can be crossdated with the living tree samples to extend the record back in
time.
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