Cross cutting relationships used relative dating nigeria chatting dating site
Relative dating cannot establish absolute age, but it can establish whether one rock is older or younger than another.Relative dating requires an extensive knowledge of stratigraphic succession, a fancy term for the way rock strata are built up and changed by geologic processes.We'll even visit the Grand Canyon to solve the mystery of the Great Unconformity!Imagine that you're a geologist, studying the amazing rock formations of the Grand Canyon.How do we use the Law of Superposition to establish relative dates?
In order to establish relative dates, geologists must make an initial assumption about the way rock strata are formed. sediments, which are deposited and compacted in one place over time.Since we assume all the layers were originally horizontal, then anything that made them not horizontal had to have happened after the fact.We follow this same idea, with a few variations, when we talk about cross-cutting relationships in rock.Geologists use this type of method all the time to establish relative ages of rocks.Now, what if instead of being horizontal, this rock layer was found in a tilted position?
What could a geologist say about that section of rock?
He graduated from George Mason University with a bachelor of science degree in economics in 1983 and received his Ph D in economics from Harvard University in 1987 with his thesis titled Essays in the theory of welfare economics.
You must be 18 years old or over to join, but it’s free to do so and you can express your sexual desires without fear of judgment.