Most of the mountains in West Virginia are composed of ocean sediments deposited primarily during the Mississippian and Pennsylvanian Periods, roughly 200-300 million years ago.
(Most of the mountains in West Virginia; are composed; of ocean sediments) (ocean sediments; deposited; T:primarily during the Mississippian and Pennsylvanian Periods; T:roughly 200-300 million years ago)
Most of the mountains in West Virginia ocean sediments
are composed deposited
of ocean sediments
T:primarily during the Mississippian and Pennsylvanian Periods T:roughly 200-300 million years ago