Marianas Trench Sea Floor Spreading

The mariana trench or marianas trench is located in the western pacific ocean about 200 kilometres 124 mi east of the mariana islands.

Marianas trench sea floor spreading.

At the mariana trench the downgoing plate is called the pacific plate and the overriding plate is the philippine sea plate. More than a mile deeper than mt. An american explorer has descended nearly 11km seven miles to the deepest place in the ocean the mariana trench in the pacific. The length is about 2 1397 km 1 580 miles and the width is about 69 202 km 43 miles.

Oceanic trenches are topographic depressions of the sea floor relatively narrow in width but very long. These oceanographic features are the deepest parts of the ocean floor. Deep sea trenches real life example the deepest trench in the world is the mariana trench located near the mariana islands. In a subduction zone some of the molten material the former seafloor can rise through volcanoes located near the trench.

Subduction processes in oceanic oceanic plate convergence also result in the formation of volcanoes. The mariana trench in the south pacific ocean is formed as the mighty pacific plate subducts beneath the smaller less dense philippine plate. Seven miles is a long way down. The depth of the mariana trench varies along its length.

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. The mariana trench is the home for the challenger deep which. Victor vescovo spent four. 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.

It is the deepest oceanic trench on earth. 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. 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. To reach the deepest part of the mariana trench james cameron will descend.

The maximum known depth is 10 984 metres 36 037 ft 25 metres 82 ft 6 825 miles at the.