How are cross cutting relationships used in relative dating onlinedatingmadeeasy org
A cartographic crosscutting relationship might look like, for example, a large fault dissecting the landscape on a large map.
in a nutshell...dating of layers of rock is based on stratification...layers of rock that are at a deeper place in the earth are older and they get more recent as they go to the top..ages of the different layers (or strata) are relative the others around it...
Cross-cutting relationships may be seen cartographically, megascopically, and microscopically.
In other words, these relationships have various scales.
As you hike down the canyon, you walk by many different rock layers, and the rocks get older and older as you walk down.
It is like going back in time through millions of years of geologic history.