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To: Edmond Katonica who wrote (6688)2/13/2002 1:33:40 PM
From: Tommaso  Read Replies (1) | Respond to of 206325
 
OK I believe you about the salt deposits; it's just that further south along the Appalachians there's lots of limestone, coal, shale, sandstone, but I don't remember any salt layers. But the basalt is volcanic, probably part of what comes out as the Palisades, Triassic, left over from the rifting open of the Atlantic. I had thought of salt domes as characteristic of younger sediments in Louisiana, Texas, southern Mississippi and Alabama. I guess I had thought all the salt had been squeezed or leached out of Mississippian, Pennsylvanian, and older layers but evidently there are places where it has not been.