hopeedwards hopeedwards

02-05-2017
Chemistry

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what methods did geologists use when they first developed the geologic time scale

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Aperson3638 Aperson3638

02-05-2017

relative dating, law of superposition, then absolute dating.

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ncsd43093 ncsd43093

02-05-2017

Scientists first developed the geologic time scale by studying rock layers and index fossils then placing them in order by relative age.

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