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Types of Tree-ring Dates
There are three kinds of archaeological tree-ring dates presented here:
Cutting dates—denoted by symbols B (bark), G (galleries), L (patina), and v (variable)– that indicate the year of tree death.
Near Cutting dates—denoted by +G, +B, +L, +v—that are within a year or two of tree death dates.
Noncutting dates–denoted by vv (very variable) and ++ (a ring count)– that indicate missing exterior rings, a long ring count, or both.