re: OT: Vanishing South Georgia

quote:

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Tell us about the fall line that splits the state and how it used to be the ocean shoreline millions of years ago. And soil types, and aquifers, and that kind of thing on either side. I love that type of stuff. What do you got?

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Yeah, so the fall line basically separates the peidmont from the coastal plain/flatwoods. the appalachians and piedmont (foothills) were created when Africa rammed into North America during pangea. 300 mya (maybe off on this numner) the oceans started to recede away from the Peidmont and eventually into their present location...what was left behind from the ocean receding was a lot of sandy, ocean sediment soils. This is why the soils north of the fall line have more clay content (ie. longer time to weather down to secondary minerals/ soil development) compared to the more recent, sandy deposits souht of the fall line, that have low nutrients and are more well drained.

the biggest aquifer in georgia is probably the Floridan Aquifer, and it has formed in the sandy coatsal plains. In the peidmont you have to deal with the saprolite, which is kind of guessing game, and doesnt produce as much gallons as a sandy aquifer.


i'm drunk so excuse the bad spelling.