Question 7 1.5 pts Evidence for volcanic activity on the seafloor associated wit

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Question 7 1.5 pts Evidence for volcanic activity on the seafloor associated with Iceland extends both to the east and to the west of Iceland. This is called the "trail" of the mantle plume. How does the bathymetry (shape of the seafloor) east (between Iceland and Ireland) and west (between Iceland and Greenland) differ compared to the seafloor to the north and south of these areas? to HER and HERE Compare HERE and HERE... There are deep ocean trenches, indicating the presence of subduction zones There are abundant mid-ocean ridges. The area is smoother and flatter from the abundant lava flows There is no noticable difference. 3 4 5 8

Explanation / Answer

7.There are abundant mid oceanic ridges.

Iceland itself is located at the crossing of -mid-atlantic ridge and the Greenland -scotland ridge.Also the boundaries between several oceanic regions are several submarine ridges.

8. 50-60 millionyears ago.

In the early palaeocene period between 63-55 ma ,last volcanic rocks were formed in British isles as North America and Greenland separated to pave the way for atlantic ocean opening.

9.0.75 million years ago.

10. 82.7 million years.

11.43.5 million years ago.

it took a sharp bend westerly from its earlier northerly directions.

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