If the North Atlantic began to rift about 200 m.y. ago, initiating the break up of Pangaea, where are the Jurassic basalts from that initial rifting?
A) on the Mid- Atlantic Ridge under Iceland
B) as outcrops and as basement to the continental shelves' sediment sequences along the eastern seaboard of North America and along the western coast of north Africa
C) subducted beneath the Bermuda triangle
D) There aren't any left; they all got recycled back into the mantle along subduction zones underneath western Europe and Brazil.

Question

Quizplus · Accepted Answer

The Jurassic basalts from the initial rifting of the North Atlantic, which began about 200 million years ago, are found as outcrops and as basement to the continental shelves' sediment sequences along the eastern seaboard of North America and along the western coast of North Africa. These basalts are evidence of the early stages of the breakup of Pangaea and the formation of the North Atlantic Ocean.

If the North Atlantic Began to Rift About 200 M