I need the help of a expert!! guys can you please help me out with this mid atlantic ridge question.?

So here it is im not understanding it to well





Most of the mid atlantic ridge is deep underwater and out of our sight. Iceland is a large island on the Mid-Atlantic Ocean Ridge. What makes it different than the rest of the mid ocean ridge.





My guess is that it is visible because it is right under the island. I also think that iceland is a island made by the sedimentary rock from the volcanoes of the mid atlantic ocean ridge.





But dont trust me because im just guessing. I am most likely wrongI need the help of a expert!! guys can you please help me out with this mid atlantic ridge question.?
fattyozo,





Iceland is made up entirely of solidified volcanic material. Here's the deal: The mid-ocean ridges, as you've probably learned, are slowly but constantly spewing fresh magma onto the ocean floor, creating new oceanic crust. So this plate margin, that runs down the middle of the Atlantic, is a source of volcanic activity.





There are also areas called ';hot spots';, which can be anywhere, where hot material from the mantle rises up and causes a lot of volcanic activity. The Hawaiian islands were formed (and are still forming) from the Pacific plate drifting over one of these hot spots.





Iceland happens to be BOTH on a plate boundary AND a hot spot. That means that not only is there the normal volcanism from the mid-ocean ridge, but there is added volcanism from the hot spot that is right underneath it. This is why there is constantly molten rock spewing forth from Iceland, and the reason that it is able to rely so heavily on geothermal energy.