<P> The oldest large scale oceanic crust is in the west Pacific and north - west Atlantic - both are about up to 180 - 200 million years old . However , parts of the eastern Mediterranean Sea are remnants of the much older Tethys ocean , at about 270 and up to 340 million years old . </P>
<P> The oldest large scale oceanic crust is in the west Pacific and north - west Atlantic - both are about up to 180 - 200 million years old . However , parts of the eastern Mediterranean Sea are remnants of the much older Tethys ocean , at about 270 and up to 340 million years old . </P>
where is the oldest oceanic crust found in the atlantic
where is the oldest oceanic crust found in the atlantic
north - west Atlantic
north - west Atlantic