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Posted by / 28-Feb-2020 12:00

Radioactive dating cold

Most sediment is either laid down horizontally in bodies of water like the oceans, or on land on the margins of streams and rivers.

Accordingly, the oldest rocks in a sequence are at the bottom and the youngest rocks are at the top.Layers of rock are deposited horizontally at the bottom of a lake (principle of original horizontality).Younger layers are deposited on top of older layers (principle of superposition).A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.However, by itself a fossil has little meaning unless it is placed within some context.

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