Jurassic Period – Geological Changes :

The Jurassic period began 208.0 Million years ago and ended in 144.0 million years ago . It lasted for 064.0 million years. At the beginning of the Jurassic period most of the continents were joined together until the Atlantic began to from and the Americas split off from Africa. Eastern North America was most Elevated and subject to the forces of erosion. The Atlantic Ocean continued to widen during the period .the pacific border of north America , from California to Alaska , was submerged for the most of the period.

During the end of the Jurassic North America has widespread folding along the western border of the continent, accompanied by the intrusion of lava as the eastern edge of the plate that carries the pacific ocean was thrust beneath the westward drifting plate that carries the north American continent .During this disturbance the Sierra , Nevada, Klammath, Cascades, Coast ranges , and coastal mountains of Canada and Alaska were formed. The Rocky mountains rise and the volcanoes of the north American west are active. By the end of the Jurassic , the Eastern edge of the continent has subsided and was below sea level. The shoreline was located near the present day outer banks. Today the Ancient Jurassic mud’s and sands are buried more than 2,800 m ( 9,200 feet) below the surface in the area of the Outer banks.