Laws of relative dating geology updating pirated final cut x
For purposes of relative dating this principle is used to identify faults and erosional features within the rock record.
The realization that sediments turn into rock was counter to the view that all rocks on Earth formed in a single creation event.
Once Steno recognized that the fossils he was contemplating (sharks teeth and sea shells) were formed in the sediments of oceans he was able to work out the basic rules of stratigraphy.
Geologists establish the age of rocks in two ways: numerical dating and relative dating.
Numerical dating determines the actual ages of rocks through the study of radioactive decay.
Discover how geologists study the layers in sedimentary rock to establish relative age.