<P> The Appalachian basin , during the Middle Devonian and Early Mississippian , is characterized by large volumes of deltaic sedimentary rocks that were deposited in the Acadian foreland basin as a response to the Acadian orogeny . These deposits extend from central New York and Pennsylvania westward to Ohio , and south along the Appalachian Mountains through Virginia and Tennessee to Alabama . The Acadian delta complex is categorized into two deltas , the Catskill Delta of Middle and Upper Devonian age , and the Price - Rockwell ( Pocono ) delta of Late Devonian and Early Mississippian age . The Acadian delta complex is coupled to the four tectophases of the Acadian orogeny , both in terms of provenance and depositional settings . The relief resulting from the orogeny was the fundamental source of the delta sediments . </P>
<P> The Appalachian basin , during the Middle Devonian and Early Mississippian , is characterized by large volumes of deltaic sedimentary rocks that were deposited in the Acadian foreland basin as a response to the Acadian orogeny . These deposits extend from central New York and Pennsylvania westward to Ohio , and south along the Appalachian Mountains through Virginia and Tennessee to Alabama . The Acadian delta complex is categorized into two deltas , the Catskill Delta of Middle and Upper Devonian age , and the Price - Rockwell ( Pocono ) delta of Late Devonian and Early Mississippian age . The Acadian delta complex is coupled to the four tectophases of the Acadian orogeny , both in terms of provenance and depositional settings . The relief resulting from the orogeny was the fundamental source of the delta sediments . </P>
which deltaic complex in north america originated as a result of the taconic ( acadian ) orogeny
which deltaic complex in north america originated as a result of the taconic ( acadian ) orogeny
Catskill Delta Price - Rockwell ( Pocono ) delta
Catskill Delta Price - Rockwell ( Pocono ) delta