atlantic trench
1Atlantic Ocean — Atlantic , North Atlantic , South Atlantic , and Atlantic Basin redirect here. For other uses, see Atlantic (disambiguation), North Atlantic (disambiguation), South Atlantic (disambiguation), and Atlantic Basin (disambiguation). The Atlantic… …
2Trench warfare — is a form of warfare where both combatants have fortified positions and fighting lines are static. Trench warfare arose when a revolution in firepower was not matched by similar advances in mobility. The result was a slow and grueling form of… …
3Atlantic Ocean — an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere. ab. 31,530,000 sq. mi. (81,663,000 sq. km); with connecting seas ab. 41,000,000 sq. mi. (106,100,000 sq. km);… …
4Atlantic Ocean — <p></p> <p></p> Introduction ::Atlantic Ocean <p></p> Background: <p></p> The Atlantic Ocean is the second largest of the world s five oceans (after the Pacific Ocean, but larger than the Indian… …
5Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… …
6Romanche Trench — The Romanche Trench, also called the Romanche Furrow or Romanche Gap , is the third deepest of the major trenches of the Atlantic Ocean, after the Puerto Rico Trench and the South Sandwich Trench. It dissects the Mid Atlantic Ridge just north of… …
7South Sandwich Trench — The South Sandwich Trench is a deep arcuate trench in the South Atlantic Ocean lying 100 km to the east of the South Sandwich Islands. The trench is produced by the subduction of the southernmost portion of the South American Plate beneath the… …
8Mid-Atlantic Ridge — The location of the Mid Atlantic Ridge The ridge was central in the breakup of Pangaea that began some 180 million years ago …
9Puerto 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. * * * ▪ submarine depression, Atlantic Ocean submarine depression in the North Atlantic Ocean,… …
10Norwegian trench — Map of the North Sea with Norwegian trench The Norwegian trench or Norwegian channel (Norwegian: Norskerenna; Danish: Norskerenden) is an elongated depression in the sea floor (but not a true oceanic trench) off the southern coast of Norway. It… …
