fossil succession

How Are Fossils Used To Determine Geological Time?

by

How Are Fossils Used To Determine Geological Time? To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to

How Does The Law Of Superposition Help Scientists Determine The Age Of A Fossil?

by

How Does The Law Of Superposition Help Scientists Determine The Age Of A Fossil? Scientists read the rock layers knowing that each layer is deposited on top of other layers. The law of superposition states that each rock layer is older than the one above it. So, the relative age of the rock or fossil