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The oldest ocean, geologically, is the Panthalassa Ocean which was around 220 million years ago in the Triassic era.

It encompassed the whole Earth except the land mass Pangea.

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βˆ™ 13y ago
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βˆ™ 5mo ago

The oldest ocean is the Pacific Ocean, which is estimated to be about 200 million years old. It formed during the breakup of the supercontinent Pangaea.

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βˆ™ 14y ago

The oldest oceanic crust is in both the Atlantic and Pacific Oceans, both to be the same age, approximately 180 million years.

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Q: What is the oldest ocean?
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Why are the oldest parts of the ocean floor no older than about 200 million years.?

Because the oldest parts reach the continental crust and then the ocean floor sinks beneath the continental crust, into the mantle.


Is the mid ocean ridge the location of the oldest ocean floor?

No, the mid-ocean ridge is actually where new oceanic crust is formed through volcanic activity. As the crust moves away from the ridge, it becomes older. The oldest oceanic crust is found near the edges of the ocean basins.


How does the age of the oldest continental crust compare to the of the oldest ocean crust?

The oldest continental crust would be between three and one half to four billion years older than the oldest oceanic crust. This is due to the fact that ocean plates are subducted under the continental plates, subjected to partial melt and essentially recycled in the mantle before reforming.


How does the age of the oldest continental crust compare to the age of oldest ocean crust?

The oldest continental crust would be between three and one half to four billion years older than the oldest oceanic crust. This is due to the fact that ocean plates are subducted under the continental plates, subjected to partial melt and essentially recycled in the mantle before reforming.


How would the age of the oldest rocks on the continents compare with the age of the oldest rocks on the seafloor if the rock on the continents is continually formed but not removed?

The oldest rocks on the continents would be much older than the rocks on the sea floor because the rocks on the continents are not being removed unlike the rocks on the sea floor that are made by the mid-ocean ridge are being removed by deep ocean trenches. this prossess that is occuring on the sea floor is called sea floor spreading. evidence of this is the Pacific ocean shrinking and the Atlantic ocean growing.

Related questions

What is the oldest ocean basin?

Pacific Ocean


What is the oldest most traveled ocean?

The Indian Ocean is.


On the ocean floor where is the oldest rock?

The oldest rock in oceanic crust is that which is found the greatest distance from a mid-ocean-ridge.


What is the oldest sea?

Indian ocean


Where is the oldest ocean?

At a Convergent Boundary.


Where are the oldest rocks in the ocean crust?

The oldest rocks are actually on land but in the ocean crust they would be the rocks closest to land. The mid-ocean ridge forms new rocks. They are usually located in the middle of the ocean.


What is the oldest island in the Pacific Ocean?

Hawaii


Why are the oldest part of the ocean floor no older then about 200 million years old?

The ocean is 4 billion yars old, however due to subduction, the oldest sediment found in the ocean's floor is 180 million years old.


What is the oldest aquatic animal?

West Indian Ocean coelacanth


Where are the oldest rocks located in the ocean crust?

The oldest rocks in the ocean crust are typically found near mid-ocean ridges, which are tectonic plate boundaries where new crust is formed. The oldest oceanic crust is estimated to be around 200 million years old.


Why are the oldest parts of the ocean floor no older than about 200 million years.?

Because the oldest parts reach the continental crust and then the ocean floor sinks beneath the continental crust, into the mantle.


Where would I find the oldest rock on the ocean floor?

The oldest rock on the ocean floor can be found in the central parts of the ocean basins, particularly in regions known as abyssal plains. These rocks are generally around 200 million years old or older.