Sea floor spreading is the process where a new sea floor is formed as it moves away from spreading centers in mid-ocean ridges.
What are some of the major land forms that are created from plate movement?
Mountains, volcanoes, trenches, and the 7 continents.
How were the Mariana Islands formed?
By underwater volcanoes along the Marianas Trench. The northern islands consist of high volcanic islands and the southern islands consist of raised-limestone.
What evidence exists today that the plates are still moving and that the islands are ancient volcanoes?
The movements of the Philippine plate under the Pacific plate, which are above the asthenosphere causes earthquakes and minute tremors.
What is an atoll?
An atoll is a coral reef that develops as a ring around a central lagoon.
Why are atolls mainly found on the Pacific?
The Pacific Oceans warm tropical climate and coral reefs are the main reasons why Atolls establish themselves mainly in the Pacific.
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