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1.Calibrated age methods provide approximate numerical age estimates based on systematic changes resulting from environmentally modulated individual processes or groups of processes.

2. Correlated age mehods produce ages only by demonstrating equivalence to independently dated deposits or events.

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Correlated age mehods produce ages only by demonstrating equivalence to independently dated deposits or events.

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dupf(½ð±Ò+3, ·­ÒëEPI+1): лл 2011-03-20 18:40:56
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