Description of absolute dating and numerical age

Rated 3.90/5 based on 580 customer reviews

He concluded that process that are currently operating on the Earth must be the same processes that operated in the past.

We discuss the 7 principles of stratigraphy first and then see how these apply to fossils.Sediment deposited on steep slopes will be washed away before it is buried and lithified to become sedimentary rock, but sediment deposited in nearly horizontal layers can be buried and lithified.Thus rocks that we now see inclined or folded have been disturbed since their original deposition.Principles of Stratigraphy Stratigraphy is the study of strata (sedimentary layers) in the Earth's crust.Geologist in the 1800s worked out 7 basic principles of stratigraphy that allowed them, and now us, to work out the relative ages of rocks.

Leave a Reply