Where Is The East Pacific Rise


Where Is The East Pacific Rise?

The Gulf of California sits at the northernmost end of an immense underwater mountain range called the East Pacific Rise which extends across the Southeastern Pacific Ocean almost to Antarctica.

Where does the East Pacific Rise start and end?

It runs south from the Gulf of California in the Salton Sea basin in Southern California to a point near 55° S 130° W where it joins the Pacific-Antarctic Ridge trending west-southwest towards Antarctica near New Zealand (though in some uses the PAR is regarded as the southern section of the EPR).

Where is East Pacific?

The Eastern Tropical Pacific Ocean (ETPO) extends along the Pacific Coast of Central America from southern Mexico to northern Peru encompassing a surface of 199 665 900 ha of coastal and marine habitats (IOC-UNESCO & UNEP 2015) and 20 853 000 ha of continental shelf.

What plate formed the East Pacific Rise?

The East Pacific Rise is a mid-ocean ridge that runs through the eastern Pacific Ocean and separates the Pacific plate from the North American plate the Cocos plate the Nazca plate and the Antarctic plate.

Is Hawaii on the East Pacific Rise?

Hawaii lies west of the westernmost edge of the Rise. The sea floor thus slopes downward from the California coast all the way to Hawaii.

What plate is the Mariana Trench on?

Pacific plate
The Mariana Trench in the South Pacific Ocean is formed as the mighty Pacific plate subducts beneath the smaller less-dense Philippine plate. In a subduction zone some of the molten material—the former seafloor—can rise through volcanoes located near the trench.Jul 13 2015

See also where is rice grown in the us

Why does the East Pacific Rise spread faster?

The magma cools and forms a dense rock called a diabase. This type of rock is found in the lower part of the ocean crust. … Faster spreading ridges like the northern and southern East Pacific Rise are “hotter ” meaning more magma is present beneath the ridge axis and more volcanic eruptions occur.

When did the East Pacific Rise form?

About 100 million years ago during the early Cretaceous Period when global spreading rates were uniformly high oceanic ridges occupied comparatively more of the ocean basins causing the ocean waters to transgress (spill over) onto the continents leaving marine sediments in areas now well away from coastlines.

Why is Pacific Ocean called Pacific?

Explorer Ferdinand Magellan named the Pacific Ocean in the 16th Century. … He called this body of water pacific due to the calmness of the water at the time (‘pacific’ means peaceful). When Magellan and his crew entered the Pacific Ocean after their long journey they thought that the Spice Islands were close at hand.

Why is the Pacific ocean so empty?

It has more islands than the Atlantic and Indian Oceans combined . It has large populations of life. It is definitely more full of water than any other ocean. It has two or enormous gyres of plastic debris.

How far is the Chile trench from the East Pacific Rise?

Along the coast of Chile the Nazca plate is subducting below the South American plate. The East Pacific Rise the boundary between the Pacific and Nazca plates is about 6200 km from Tonga and 4600 km from Chile.

Is Pacific Ocean spreading?

Seafloor spreading is when tectonic plates split from each other creating a new oceanic crust. While the Pacific Ocean is slowly shrinking the Atlantic Ocean is expanding.

How old are the rocks along the East Pacific Rise?

In the eastern Pacific why are oceanic rocks no older than 120 million years? The eastern Pacific Mid-Oceanic Ridge is not far from the subduction zone that runs along the west coast of South America. The ocean floor spreading eastward is subducted and destroyed relatively soon after formation.

Are mid ocean ridges?

Mid-ocean ridges occur along divergent plate boundaries where new ocean floor is created as the Earth’s tectonic plates spread apart. … Two well-studied mid-ocean ridges within the global system are the Mid-Atlantic Ridge and the East Pacific Rise.

At which point would the oldest bedrock be found?

Bedrock along the northeast coast of Hudson Bay Canada has the oldest rock on Earth. Canadian bedrock more than 4 billion years old may be the oldest known section of the Earth’s early crust.

How fast is the East Pacific Rise spreading?

6 to 16 cm per year

In contrast the East Pacific Rise spreads fast at rates of 6 to 16 cm per year (more than 20 cm per year in the past). Due to the fast spreading rates there is no rift valley just a smooth volcanic summit with a crack along the crest that is much smaller than the Atlantic rift valley.

See also what is the moho and how is its depth determined?

Is Megalodon in the Mariana Trench?

According to website Exemplore: “While it may be true that Megalodon lives in the upper part of the water column over the Mariana Trench it probably has no reason to hide in its depths. … However scientists have dismissed this idea and state that it is extremely unlikely that the megalodon still lives.

Are there monsters in the Mariana Trench?

Despite its immense distance from everywhere else life seems to be abundant in the Trench. Recent expeditions have found myriad creatures living out their lives at the bottom of the sea-floor. Xenophyophores amphipods and holothurians (not the names of alien species I promise) all call the trench home.

What happens to the lithosphere when it Subducts?

Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth’s mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate the heavier plate dives beneath the second plate and sinks into the mantle.

What is the fastest spreading center in the world?

East Pacific Rise

Some of our recent research involves hydrothermal and structural investigations along Earth’s fastest seafloor spreading center the 28°S–32°S East Pacific Rise. The fastest present-day seafloor spreading ~150 km/Myr occurs along the Pacific-Nazca boundary between the Easter and Juan Fernandez microplates.

Which has the longest underwater chain of mountains?

the Mid-Ocean Ridge

The longest submarine mountain range is the Mid-Ocean Ridge extending 65 000 km (40 000 miles) from the Arctic Ocean to the Atlantic Ocean around Africa Asia and Australia and under the Pacific Ocean to the west coast of North America. It has a greatest height of 4 200 m (13 800 ft) above the base ocean depth.

Where are the slowest spreading centers in the world?

The Mid-Atlantic Ridge
The Mid-Atlantic Ridge is a slow-spreading center while the East Pacific Rise is an example of fast spreading.

Which is the deepest point from the sea level on the earth?

The Mariana Trench in the Pacific Ocean is the deepest location on Earth.

How was Baja created?

Baja and the Gulf of California were born from crashing tectonic plates erupting volcanoes and the violence of geology. … They were created quickly in the blink of an eye and not very long ago.

Where is the Gulf of California?

Gulf of California also called Sea of Cortez Spanish Golfo de California or Mar de Cortés large inlet of the eastern Pacific Ocean along the northwestern coast of Mexico. It is enclosed by the Mexican mainland to the east and by the mountainous peninsula of Baja California to the west.

What is the scariest ocean?

  • The Mariana Trench Is the Deepest Point on Earth and We Have No Idea What All Is Down There. …
  • The Terrifyingly Deep Great Blue Hole. …
  • The Corryvreckan Maelstrom Is a Permanent Violent Whirlpool. …
  • The Remains of a Devastating WWII Battle Lie at the Bottom of the Chuuk Lagoon. …
  • The Devil’s Sea Is the Bermuda Triangle’s Twin.

See also what is a rainforest food chain

Can you drink Pacific Ocean water?

Why can’t people drink sea water? Seawater is toxic to humans because your body is unable to get rid of the salt that comes from seawater. Your body’s kidneys normally remove excess salt by producing urine but the body needs freshwater to dilute the salt in your body for the kidneys to work properly.

Why is the Pacific ocean so blue?

The reason the ocean is blue is due to the absorption and scattering of light. The blue wavelengths of light are scattered similar to the scattering of blue light in the sky but absorption is a much larger factor than scattering for the clear ocean water.

Do planes fly over the Pacific Ocean?

The primary reason airplanes don’t fly over the Pacific Ocean is because curved routes are shorter than straight routes. … Whether a commercial airline is flying from the United States to Asia or elsewhere it will have the fastest and most fuel-efficient flight by performing a curved rout.

How many country touch the Pacific Ocean?

Asia and North America are the only continents that historically border three oceans while Russia and Canada are the only countries that border three oceans.

Countries That Border Three Oceans.
Rank Country Oceans Bordered
1 Russia Pacific Atlantic Arctic
2 Canada Pacific Atlantic Arctic

What’s at the bottom of the Pacific 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. … Challenger Deep is the deepest point of the Marianas Trench.

How deep is the ocean floor in the Atacama trench?

8 065 m.
Atacama Trench located off the coasts of Peru and Chile is one of the deepest ocean trenches in the world and has a maximum depth of 8 065 m. It is almost 6 000 kilometers long.Feb 28 2018

Is Tonga on the Pacific plate?

The island archipelago of Tonga sits at the junction of two major tectonic plates – the Indo-Australian plate in the west and the Pacific Plate in the east. It is part of the Pacific “Ring of Fire” that encircles the entire ocean basin.

What caused the Peru trench?

Geology. The trench is a result of a convergent plate boundary where the eastern edge of the oceanic Nazca Plate is being subducted beneath the continental South American Plate. … Two seamount ridges within the Nazca Plate enter the subduction zone along this trench: the Nazca Ridge and the Juan Fernández Ridge.

The East Pacific Rise

Sea Mounts of the East Pacific Rise

Flying over the Antarctic Ridge and the East Pacific Rise

The hydrothermal system of the East Pacific Rise.

Leave a Comment