Soil is renewed at the bottom of still waters.
That is what the theory says.
Competent geologists don’t even address the theory WRT real world work. They can’t square it with reality.
Ever seen the Mt. St. Helens recovery? Apparently it’s in the geological twilight zone.
“Old Earth” is politics, not science.
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Soil will either erode away forming either soil at a different location or a river delta, etc. or new soil overlays older soil and, over time, the older soil becomes rock. Go out and take a look at mud stone, fine conglomerate shale, etc. You can go out in your back yard and dig a hole, you’ll find larger rock and harder digging the further down you go. Hillsides will waste away, sometimes by landslide. Erosion takes everything downhill. Mount St. Helens is a slightly different tale. Ash erodes quickly at the surface and forms tuff at depth. Trees and bushes recover quickly as volcanic ash is rich in nutrients. You can drive up the North Umpqua River to Crater Lake and see what Mt. St. Helens will look in four thousand years.