Marianas Trench Sea Floor Spreading

Mariana trench also called marianas trench deep sea trench in the floor of the western north pacific ocean the deepest such trench known on earth located mostly east as well as south of the mariana islands it is part of the western pacific system of oceanic trenches coinciding with subduction zones points where two adjacent tectonic plates collide one being forced below the other. Victor vescovo spent four. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries along which lithospheric plates move towards each other at rates that vary from a few millimeters to over ten centimeters per year.

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The challenger deep at the southern end of the marianas trench plunges deeper into the earth s interior nearly 11 000 m than mount everest the world s tallest mountain rises above sea level about 8 854 m.

Marianas trench sea floor spreading.

The maximum known depth is 10 984 metres 36 037 ft 25 metres 82 ft 6 825 miles at the. The mariana trench in the south pacific ocean is formed as the mighty pacific plate subducts beneath the smaller less dense philippine plate. Deep sea trenches real life example the deepest trench in the world is the mariana trench located near the mariana islands. The mariana trench the mariana arc this 3 d sketch shows a cross section of the mariana arc with some of its main structures and features.

The mariana trench or marianas trench is located in the western pacific ocean about 200 kilometres 124 mi east of the mariana islands. Where large old seamounts are present on the pacific plate at the subduction zone the trench is shallower. The numbers represent the speed of sound in the various layers beneath the arc measured by the precise timing arrivals from earthquakes and man made sources. Seven miles is a long way down.

It is crescent shaped and measures about 2 550 km 1 580 mi in length and 69 km 43 mi in width. At the mariana trench the downgoing plate is called the pacific plate and the overriding plate is the philippine sea plate. It is the deepest oceanic trench on earth. In a subduction zone some of the molten material the former seafloor can rise through volcanoes located near the trench.

These oceanographic features are the deepest parts of the ocean floor. More than a mile deeper than mt. The length is about 2 1397 km 1 580 miles and the width is about 69 202 km 43 miles. Subduction processes in oceanic oceanic plate convergence also result in the formation of volcanoes.

The depth of the mariana trench varies along its length. To reach the deepest part of the mariana trench james cameron will descend. An american explorer has descended nearly 11km seven miles to the deepest place in the ocean the mariana trench in the pacific. Oceanic trenches are topographic depressions of the sea floor relatively narrow in width but very long.

The mariana trench is the home for the challenger deep which.

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