Volcanoes Role in the Formation of Mariana Trench | How the Earth Was Made (S1) | History

Transcript

In the hunt to discover what formed the Mariana's Trench, scientists now know crust created at the ocean ridge is being devoured somewhere and by something in the Pacific Ocean. They suspect the Mariana's trench is involved. But the proof would come not from the trench, but from these The Mariana Islands, a chain of volcanoes that break through the... Read More