Deep sea trench any long narrow steep sided depression in the ocean bottom in which occur the maximum oceanic depths approximately 7 300 to more than 11 000 metres 24 000 to 36 000 feet.
Marianas trench sea floor age.
The mariana trench or marianas trench is located in the western pacific ocean about 200 kilometres 124 mi east of the mariana islands.
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.
As well as the mariana trench in the pacific in the last six months dives have also taken place in the puerto rico trench in the atlantic ocean 8 376m 27 480ft down the south sandwich trench.
Estimates vary a little but at its blackest depths a crease called the challenger deep this abyss is close to 36 037 feet 10 984 meters or about 6 8 miles 10 9 kilometers deep.
These oceanographic features are the deepest parts of the ocean floor.
This image of the challenger deep in the mariana trench the deepest spot on earth was made using sound waves bounched off the sea floor.
An american explorer has descended nearly 11km seven miles to the deepest place in the ocean the mariana trench in the pacific.
The maximum known depth is 10 984 metres 36 037 ft 25 metres 82 ft 6 825 miles at the southern end of a.
They typically form in locations where one tectonic plate subducts under another.
In fact the mariana trench is the deepest part anywhere in the earth s oceans.
For comparison most ocean life lives above a depth of 660 feet.
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.
It is crescent shaped and measures about 2 550 km 1 580 mi in length and 69 km 43 mi in width.
The trench is approximately 1580 miles in length and only approximately 43 miles wide on average.
Victor vescovo spent four.
Mariana trench also called marianas trench is a trench located in the western pacific ocean at the deepest point in all of the oceans of the world.
Darker blues represent deeper spots.
Oceanic trenches are topographic depressions of the sea floor relatively narrow in width but very long.
