Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.
可以树木的年轮和被称为纹泥的季节性沉积物进来定年龄。
Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.
可以树木的年轮和被称为纹泥的季节性沉积物进来定年龄。
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