Puerto Rico Trench

Puerto Rico Trench
a depression in the ocean floor, N of Puerto Rico: includes deepest part of Atlantic Ocean, 28,374 ft. (8648 m).
Also, Puerto Rico Trough.

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▪ submarine depression, Atlantic Ocean
      submarine depression in the North Atlantic Ocean, roughly parallel to the northern coast of the island of Puerto Rico and lying about 75 miles (120 km) to the north. The Puerto Rico Trench is about 1,090 miles (1,750 km) long and 60 miles (100 km) wide. The deepest point in the Atlantic Ocean, the Milwaukee Depth, lies at a depth of 27,493 feet (8,380 m) in the western end of the trench, about 100 miles (160 km) northwest of Puerto Rico. The origin of the trench can be traced back to the beginning of the Tertiary period. The Puerto Rico Trench appears to be part of a complex system of sinistral strike-slip faults in the north Caribbean; the trench seems to have been open continuously for about 70 million years. It is partially filled with sediments.

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Universalium. 2010.

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