Name_________________________

Web Exercise - Dendrochronology

Due no later than 11:30 am Wednesday, September 22, 2004

For this exercise, visit The University of Arizona’s Tree-Ring Laboratory website, http://tree.ltrr.arizona.edu/, specifically the tutorial, http://tree.ltrr.arizona.edu/dendrochronology.html.  Answer the following questions about dendrochronology.  Then visit the site on bristlecone pines maintained by Leonard Miller, http://www.sonic.net/bristlecone/home.html, and click on “dendrochronology”.  Answer the following questions about dating these ancient trees.

1.(2) Counting tree rings helps to determine the age of trees and also permits crossdating with trees from other sites.  Crossdating requires more than just counting rings, however.  What else is involved in crossdating?
 
 
 
 
 

2.(2) What sorts of research applications are made of results of dendrochronology studies?
 
 
 
 
 
 
 

3.(2) How old is the bristlecone pine “Methuselah”?  Where does it live?
 
 
 

4.(2) Why is it that wood core samples from both living and dead bristlecone pines are necessary to build a chronology?
 
 
 
 

5.(2) The bristlecone pine chronology in the White Mountains of California has been established how many years into the past?