[cookcounty]

So, the Ogalala aquifer came from the earth’s mantle?

[editor-surveyor]

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>> “So, the Ogalala aquifer came from the earth’s mantle?” <<

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So did all of the comets.
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[JimSEA]

We’re talking about different minerals, rocks being formed that are lighter than the mantle and thus floating on the mantle and raising the inland sea bed. The water is contained in minerals both in the crust and mantle.