The Philippine Trench is a deep-sea trench located east of the Philippine Islands . Its length is 1320 km, from the northern part of Luzon Island to the Mollusk Islands . The deepest point is 10,540 m.
| Philippine Trench | |
|---|---|
| Characteristics | |
| Depth | 10 540 m |
| Length | 1320 km |
| Width | 30 km |
| Location | |
| Ocean | Pacific Ocean |
Previously, the gutter was referred to as Mindanao. The slopes of the gutter are asymmetric, the island slope is higher and steeper than the oceanic, composed of steps and ledges, divided by canyons. It has a narrow bottom , divided into separate flat-bottomed troughs by rapids. In 1912, the trench was studied along the entire length of the German hydroplane ship "Planets". [one]
The Philippine Trench is the result of a collision of lithospheric plates . Oceanic, 5 km thick, but with a specific gravity ( basalt ), the Philippine Sea Plate moves at a speed of 16 cm per year to a 60 km, lower specific gravity ( granite ), Eurasian Plate , and melts due to the mantle of the Earth at a depth from 50 to 100 km. This geophysical process is called subduction . The Philippine Trench is located in this zone. .
Notes
- ↑ A.P. Gorkin. Encyclopedia "Geography" (without illustrations). - ACT: Rosman, 2008 .-- 1374 p. - ISBN 5353024435 .
Literature
- Belyaev G.M. Deep-sea oceanic trenches and their fauna . - M. , 1989.
Links
- Philippine Trench in the Philippines Dictionary