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.

Notes: