Where is the new crust formed?
mid-ocean ridges
Where is new crust formed quizlet?
New oceanic crust is formed when the seafloor spreads as hot molten rock (magma) wells up into the rifts of the mid ocean ridge.
What creates new crust?
Subduction happens where tectonic plates crash into each other instead of spreading apart. At subduction zones, the edge of the denser plate subducts, or slides, beneath the less-dense one. The denser lithospheric material then melts back into the Earth’s mantle. Seafloor spreading creates new crust.
Where does the new crust come from where does the old crust go?
These are plate margins where one plate is overriding another, thereby forcing the other into the mantle beneath it. These boundaries are in the form of trench and island arc systems. All the old oceanic crust is going into these systems as new crust is formed at the spreading centers.
Where would you find the youngest crust on Earth?
The youngest crust of the earth can be found near the seafloor spread in the centers or mid-ocean ridges. Explanation: The earths crust is the outermost part of the earth and the earth’s crust is generally divided into older, thicker continental crust and younger, denser oceanic crust.
Where is the oldest oceanic crust located?
Mediterranean Sea
How old is the oldest oceanic crust on Earth?
about 340 million years
Which ocean hosts the oldest oceanic crust on Earth?
What is the longest continuous feature on Earth?
mid-ocean ridge
Which is the longest range in the world?
Andes
Which is the largest mountain in the world?
Mount Everest
Which is the deepest and biggest ocean on Earth?
Pacific Ocean
Which ocean is most dangerous?
Indian Ocean
What are the 7 Seven Seas?
The Seven Seas include the Arctic, North Atlantic, South Atlantic, North Pacific, South Pacific, Indian, and Southern Oceans. The exact origin of the phrase ‘Seven Seas’ is uncertain, although there are references in ancient literature that date back thousands of years.
What is the deepest sea on earth?
Is there a bottom to the ocean?
In the Pacific Ocean, somewhere between Guam and the Philippines, lies the Marianas Trench, also known as the Mariana Trench. At 35,814 feet below sea level, its bottom is called the Challenger Deep — the deepest point known on Earth. The Challenger Deep is nearly three times deeper than that.
Where is the deepest place on Earth?
How far down in the ocean have we gone?
Vescovo’s trip to the Challenger Deep, at the southern end of the Pacific Ocean’s Mariana Trench, back in May, was said to be the deepest manned sea dive ever recorded, at 10,927 meters (35,853 feet).
At what depth will water crush you?
At about 10–12 meters (33–40 feet) of depth, pressure of water column above you (1 extra atmosphere of pressure per 10 meters) will compress air spaces in your body by half, with lungs compressing the most by the absolute volume.
How deep can a human dive before being crushed?
about 35.5 km
How deep in the ocean can a human go?
35,858 feet
Can a human dive to the Titanic?
No, you cannot scuba dive to the Titanic. The Titanic lies in 12,500 feet of ice cold Atlantic ocean and the maximum depth a human can scuba dive is between 400 to 1000 feet because of water pressure.
Can you fart while diving?
Farting is possible while scuba diving but not advisable because: An underwater fart will shoot you up to the surface like a missile which can cause decompression sickness. The acoustic wave of the underwater fart explosion can disorient your fellow divers.
What happens if you go too deep in the ocean?
It’s a form of decompression sickness initially observed in deep sea divers. At great depths under water the excess pressure causes nitrogen gas to be absorbed into the blood. If the diver surfaces too quickly the nitrogen forms bubbles in the blood which raise havoc in the body.
Why can’t divers go too deep?
Nitrogen narcosis: Deep dives can cause so much nitrogen to build up in the brain that you can become confused and act as though you’ve been drinking alcohol. You might make poor decisions, such as taking out your regulator because you think you can breathe underwater.
How cold is it at the bottom of the ocean?
Therefore, the deep ocean (below about 200 meters depth) is cold, with an average temperature of only 4°C (39°F). Cold water is also more dense, and as a result heavier, than warm water. Colder water sinks below the warm water at the surface, which contributes to the coldness of the deep ocean.
What is the coldest place on Earth?
Oymyakon
Does the ocean get saltier as it gets deeper?
Deep ocean water (DOW) is the name for cold, salty water found deep below the surface of Earth’s oceans. Ocean water differs in temperature and salinity. Warm surface water is generally saltier than the cooler deep or polar waters; in polar regions, the upper layers of ocean water are cold and fresh.
What lives at the bottom of the ocean?
However, there are more than 200 species of anglerfish, divided into four groups: goosefish, batfish, frogfish, and deep-sea angler. Only females possess the iconic, bioluminescent angling apparatus. Most live at the bottom of the Atlantic and Antarctic Oceans, sometimes as far as a mile below the surface.