What's New :
Holes on the ocean floor
Sea explorers, deep in the waters along a volcanic ridge in the bottom of the Atlantic Ocean, found a pattern of holes in the sand.
What has been found?
- During exploration in the north of the Azores, near Portugal’s mainland, explorers saw about a dozen sets of holes resembling a track of lines on the ocean floor, at a depth of 1.6 miles.
- There were four more sightings on the Azores Plateau, which is underwater terrain where three tectonic plates meet.
- Those holes were about 1 mile deep and about 300 miles away from the site of the expedition’s initial discovery.
Mid-Atlantic Ridge (MAR):
- The Mid-Atlantic Ridge (MAR) is known as a mid-ocean ridge, an underwater mountain system formed by plate tectonics.
- It is the result of a divergent plate boundary that runs from 87° N – about 333 km (207 mi) south of the North Pole – to 54 °S, just north of the coast of Antarctica.
- Like other ocean ridge systems, the MAR developed as a consequence of the divergent motion between the Eurasian and North American, and African and South American Plates.
- In the North Atlantic, it separates the Eurasian and North American Plates; whereas in the South Atlantic, it separates the African and South American Plates.
- The peaks of the ridge stand about 3 km (1.86 mi) in height above the ocean floor, and sometimes reach above sea level, forming islands and island groups.
- The MAR is also part of the longest mountain chain in the world, extending continuously across the oceans floors for a total distance of 40,389 km (25,097 mi).
- The MAR also has a deep rift valley at is crest which marks the location where the two plates are moving apart.
Verifying, please be patient.