What type of dating method can be used on rock layers by applying the law of superposition?
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 in the rock or fossil in the rock is older if it is farther down in the rock layers. Relative dating can be used only when the rock layers have been preserved in their original sequence.
Which type of dating method can be used on rock layers?
radiometric dating methods 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 date ancient events.
Who made the law of superposition?
geologist Nicolaus Steno The law of superposition was formulated by Danish geologist Nicolaus Steno and outlined in his book De Solido Intra Naturaliter Contento Dissertationis Prodomus (1669; The Prodromus of Nicolaus Stenos Dissertation Concerning a Solid Body Enclosed by Process of Nature Within a Solid).