medieval-religion: Scholarly discussions of medieval religion and culture
On Jan 27, 2011, at 10:21 AM, Christopher Crockett wrote:
> for dendrochronology works at all for dating such a "muliti-stalked" tree as
> this, the wood would have to be very, very dense (i.e., slow growing) indeed.
It is. Sampling needs to be done very carefully, and even so, researchers report that it breaks the metal borers on a pretty regular basis.
I forgot to add that, since people have been wondering how old certain yew trees are for several centuries now, there are some records of 17th to 19th-century measurements of trees that still exist, so if you compare those numbers with the tree's measurements today, there is at least some growth rate data for older trees as well as the data available from younger trees where the rings are still present all the way to the center.
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O Chris Laning <[log in to unmask]> - Davis, California
+ http://paternoster-row.org - http://paternosters.blogspot.com
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