One of the ancient oceans formed a beach along the yellow line known as the fall line.
The Mississippi River valley is low land running well north making the whole state of Mississippi a low land.
Wherever there is a high spot in the yellow zone here in south Georgia we have shallow water marine fossils like oysters and shallow water coral.
Elevation map very similar to fall line map. Note the yellow specks in Florida. Pretty much tells where i find coral. 100 meter elevations.
But more accurately, at 60-70 meters on the hillsides of those yellow specks. Or plateaus at 60-70 meters which is a pretty large area.
But a river has to remove the sand over burden and wash it away. Florida has no large river like the Mississippi so fossils are not displaced much.
So not much movement, fossils are close to where they formed.
And then the controversial part. No doubt we had hot and cold ages. Not touching the timing subject, note Holocene at end 10,000 years.
And then the Holocene blown up, the period since the last ice age. Florida covered up with mineralized bones from this recent ice age.
Ha, no ideas or conclusions. Just food for thought.
Elevations and changing temperatures.
The last ice age messes with me a lot. Because there was apparently a whole bunch of crazy mammals roaming the earth that died off when it warmed up 10,000 years ago.
Your elevation is similar to Florida's elevation. So the ancient oceans covered your state at the same time they covered S Georgia and Florida.
Oh, and the size of Florida during the last ice age. So we find Native man's camps way out in the ocean. Terrestrial mammals too.
Note high elevations, green blobs within modern Florida. Those were coral reefs during hot age(s).
A-an interglacial (warm) age, B-ice age C-present age
The rivers I hunt coral at cut thru this super thick limestone. It came from settlement of a very old long lasting ocean.
All the coral I find formed on top of this limestone layer from a much more short lived recent ocean.
that is why we call it shelf coral. Because it sits on top of the shelf of a much older ocean deposit.
I have to find where the river cuts thru these shelves right at shelf level to find coral.
The coral is a thin layer sitting on this shelf.