Changes

However, tree rings can also be used to date much older wooden artifacts. Since trees grow more in years with favorable climates, multi-year weather patterns leave recognizable patterns in tree rings. These patterns are used to identify specific periods of time (in specific places) just as fingerprints can be used to identify a person. Tree ring patterns in old living trees can be matched up to ring patterns in older, dead wood from the same area, to give a chronology of ring patterns that may go back much farther than the life of any one tree (this process is called [[crossdating]]). These patterns can then be used to date the wood in artifacts such as houses or tools, or to date the age of different [[stratigraphy | strata]] in the soil.   

However, tree rings can also be used to date much older wooden artifacts. Since trees grow more in years with favorable climates, multi-year weather patterns leave recognizable patterns in tree rings. These patterns are used to identify specific periods of time (in specific places) just as fingerprints can be used to identify a person. Tree ring patterns in old living trees can be matched up to ring patterns in older, dead wood from the same area, to give a chronology of ring patterns that may go back much farther than the life of any one tree (this process is called [[crossdating]]). These patterns can then be used to date the wood in artifacts such as houses or tools, or to date the age of different [[stratigraphy | strata]] in the soil.   

==See also==

==See also==