Sentences with phrase «at ocean trenches»

The oceanic crust moves away from the mid-ocean-ridges and ultimately gets transported back into the underlying mantle through «subduction» at ocean trenches.

Not exact matches

They simulated earthquakes with magnitudes between 9.0 and 9.6 originating at different locations along the Aleutian - Alaska subduction zone, a 3,400 - kilometer (2,113 - mile) long ocean trench stretching along the southern coast of Alaska and the Aleutian Islands where the Pacific tectonic plate is slipping under the North American plate.

10,250 meters: The depth (a little over 6 miles) at which marine experts have discovered human - caused pollution in the Mariana Trench, the deepest part of the world's oceans, located in the Pacific.

The strength of gravity at Earth's surface varies subtly from place to place owing to factors such as the planet's rotation and the position of mountains and ocean trenches.

More perplexing still, seismic studies have shown no evidence that ocean crust is being subducted — thrust down into the hot mantle underlying the trench — which is the process that results in quakes at other deep - sea trenches.

In 1960, Auguste's son Jacques Piccard steered a pressurized steel sphere called a bathyscaphe to the deepest point in the world's oceans, at the bottom of the Mariana Trench.

Deepest point in the ocean is teeming with life At the bottom of the Mariana trench, some 11,000 metres below sea level and at pressures 1100 times those at the surface, bacteria are thrivinAt the bottom of the Mariana trench, some 11,000 metres below sea level and at pressures 1100 times those at the surface, bacteria are thrivinat pressures 1100 times those at the surface, bacteria are thrivinat the surface, bacteria are thriving.

Humans have been able to venture into just a tiny fraction of Earth's deepest trenches at the bottom of the oceans — and then for only brief visits and at considerable expense.

Scientists have been attracted to the region because of the subduction zone located at the bottom of the ocean where the Pacific and North American tectonic plates collide, the Aleutian Trench.

A plastic bag was found at the bottom of the Mariana Trench — the deepest part of the ocean.

Greater understanding of the ocean floor and the discoveries of features like mid-oceanic ridges, geomagnetic anomalies parallel to the mid-oceanic ridges, and the association of island arcs and oceanic trenches occurring together and near the continental margins, suggested convection might indeed be at work.

A recent paper published in the journal Marine Policy details the staggering amount of plastic and other debris found at the bottom of the world's deepest ocean trench.

At least 3,000 pieces of litter, with some dating back 30 years, can be found in the Pacific Ocean's Mariana Trench.

Often these robots are built to go where man can not or at least to complete jobs that a human would have a much tougher time doing, like diving to deep ocean trenches or scurrying amid rubble after a natural disaster looking for people in need of help.