Peru Trench
The peruchile trench also known as the atacama trench is an oceanic trench in the eastern pacific ocean about 160 kilometres 99 mi off the coast of peru and chile.
Peru trench. The peru chile trench marks the subduction of the nazca plate under the south american plate and lies offshore from an area of active volcanism. The peru chile trench is also known as atacama trench. Oceanic trenches are topographic depressions of the sea floor relatively narrow in width but very long.
The nazca plate is subducting beneath the south american plate causing an oceanic feature known as the peru chile trench. These oceanographic features are the deepest parts of the ocean floor. It reaches a maximum depth of 8065 m 26460 ft below sea level in richards deep 2301045s 7101841w.
The trench sediments are alternate layers of turbidites and oceanic deposits mainly clays volcanic ash and siliceous oozes with some carbonates and possibly primary dolomites. This subduction is also responsible for one of western south americas most defining geographic features. It marks the boundary between subducting nazca plate and overriding south america plate.