That is not true. For example, the Grand Canyon has 40 different sedimentary layers dating from 200 million to 2 billion years old.
Explain where NEW ROCKS come from?? Now if you are saying DUST from billions of years make up rock layers, I could agree, maybe.
Could God make a Grand Canyon with layers of different “carbon datable” content?
Probably. Why? Why not? Did He?
That is an interesting observation of a natural phenomenon.
Here is another interesting explanation. It runs for several pages... In the Beginning... (the Grand Canyon)...
Not true. The sediments were laid during the flood and the canyon itself was carved by water running off the land after the flood water receded.