Question

In order to obtain absolute dates from very early contexts (over 1 million years ago), you would probably choose to use either _________ or possibly _________ , depending upon the rock material
a) tree rings, varves
b) fission track, dendrochronology
c) potassium-argon, tree rings
d) potassium-argon, fission track
e) radiocarbon, cation ratio

Answer

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