How the relative and absolute dating are used to determine the ages of rocks?
Bones of ancient humans, our ancestors, and other animal species were buried in the sediment, and eventually became fossilized and preserved in the rocks.
Geologic age questions are of two kinds: relative age Is this rock older-than or younger-than this other rock? Absolute age is the numeric age of a layer of rocks or fossils.
Based on principles laid out by William Smith almost a hundred years before the publication of 's , the principles of succession were developed independently of evolutionary thought.
