Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.
可对树木的年轮和被称为纹泥的沉积物进行计数来定其绝对年龄。
Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.
可对树木的年轮和被称为纹泥的沉积物进行计数来定其绝对年龄。
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