Faults are always younger than the rocks they cut. They cannot be older that the rocks they are cutting, because the rocks would not be there.
Relatively, they are younger than the rock they cut through.
Because the rocks have to be there first, all faults are younger than the rocks they end up cutting across. In regard to sedimentary rock layers, each layer is younger than the one below it.
reative age
reative age
The Stone Age is the period when people used tools (hammers, arrow heads, etc.)made from rocks.
The cross cutting intrusions can be used to determine the age of the rocks.
They are used to determine the relative ages of rocks by stating that younger rocks lie above older rocks, and that rocks that cut through a layer are younger than the existing layer.
Unless disturbed by later events, younger layers overlie older layers. See the law of super-position.
i think rocks age becauce of the carbon inside of them.
At the oceanic ridges the age of igneous basalt rocks is approximately zero (as that is where they formed) and the rocks get older the farther away. The ages of sedimentary and metamorphic rocks does not correlate reliably with distance from the oceanic ridges like the ages of igneous rocks, because they can form anywhere not mainly at oceanic ridges. Igneous granite rocks are generally formed around continental volcanos not oceanic ridges.
The farther away the rocks are, the older they are. When the lava bubbles up from the ridge, the tectonic plates move outward. As the process repeates itself and new lava comes up, the rocks are pushed farther and father away. As a result, the closest rocks are the newest, and the farthest rocks are the oldest!
Paleontologists use carbon dating to determine the age of rocks.