Hints: 開始有省略號(hào)... North America Greenland Europe the mid-Atlantic ridge abyss Iceland

...and marked the growing pains of a young ocean. 16 million years ago, North America and Greenland finally split apart from Europe. As the continental plates separated, the North Atlantic was born. It's a process that's far from over, now 5,000 kilometers wide, this ocean is still expanding at the speed our fingernails grow. This is happening all along the mid-Atlantic ridge. Occasionally, eruptions here are immense. Volcanoes rise up from the abyss. Iceland is just the tip of one such volcano. Its violent volcanic history is written all across the island. New eruptions happen all the time, adding new territory to this isolated European outpost. These are some of Europe's youngest rocks. The events here in Iceland reflect the violent processes that have helped build Europe over the last 500 million years.

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