Philippine Trench

Geography

The Philippine Trench extends east of the archipelago of the Philippines on 1325 km length of the Moluccan island of Halmahera (Indonesia) up to the northeastern tip of Luzon. It reaches its greatest depth with the Galatheatief ( 10,540 m). He is one of the deep-sea trenches of the earth that are deeper than 10 km.

Geology

According to the theory of plate tectonics, a deep trough, so also the Philippine Trench, as a subduction zone is to understand where the clash of the heavier oceanic plate with a lighter continental first comes under the second. The east of the trough lying Philippine plate dive under the west adjacent to these Eurasian Plate and melts at 50 to 100 km depth. This leads on the one hand the emergence of a deep-water channel and on the other hand, the formation of volcanic island chains and earthquakes.

History

By 1945, the Emden was low as the lowest point of the Philippine Trench, which was determined in 1926 with 10,400 m sea depth by the crew of the German cruiser Emden. 1945 pinpointed the crew of the U.S. ship Cape Johnson in this deep sea channel sounder by a sea depth of 10,497 m; this Meerestief was subsequently named after the ship Cape Johnson depth. 1951 was the crew of the Danish research ship Galathea a 10,540 m deep body which has since been referred to as Galatheatief.

Sea ​​lows

In the Philippine Trench centers include these marine lows:

• Galatheatief ( 10,540 m), the deepest point in the Philippine Trench
• Cape -Johnson - Low ( 10,497 m)
• Emden Deep ( 10,400 m)