SeaFloor Spreading

Sea Floor Spreading

1. What is a sea floor spreading?

A process by which new ocean floor is formed by lava erupting from a rift valley, pushing the existent floor outward from the rift.

2. What are some of the major land forms that are created from plate movement?

At the margins of the plates, where they collide, move apart or slide past one another, major landforms are created such as mountains, rift valleys, volcanoes, ocean trenches, and mid-ocean ridges.

3. How were the Mariana Islands formed?

The islands are tranquil of volcanic rocks that some how creates the Marianas Island by overlain with coral and basically for thousands of year raised many of the islands significantly the height is above sea level forming high cliffs.

4. What evidence exists today that the plates are still moving and that the islands are ancient volcanoes?

Prime example of evidence still exist is Earthquake and volcanoes activities are still dynamic until now.

5. What is an atoll?

An atoll is an island of coral that encircles a lagoon partially or completely.

6. Why atolls are mainly found on the Pacific?

As we all know, the ring of fire surround the Pacific Ocean we tend to deal with several volcanoes that are still active continuously which is one of the process of forming atolls. In addition, coral reefs tend to survive on atolls due to our climate (warm water).