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The oldest ice cores (taken from the Antarctic) date back some 1.5 million years. There are some variables that can introduce error, but it (the error) will be small compared to the age of the recovered materials. This is not theory. Proven laboratory techniques allow us to make these statements. No one who understands the physics of the methods will gainsay them. The physics is not that difficult to get a handle on. But remove any religious (or other) blinders before looking at the science. A link is provided to the white paper on these core samples.
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∙ 15y ago
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∙ 14y agoMetamorphic rocks are the oldest continental rocks.
They tend to be preserved in the core of continental crust (known as cratons) and form some of the oldest rocks on the planet, including the 4.28 billion year old Nuvvuagittuq Greenstone belt in Canada (the oldest rocks on the planet) and the Narryer Gneiss Terrane in Western Australia which contain the oldest individual crystals found on the planet at 4.404 billion years old.
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∙ 13y agoThe oldest rocks of terrestrial origin (i.e. they were formed on earth) are 4.28 billion years old.
However the oldest rock found on Earth is a meteorite that is 4.56 billion years old.
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∙ 9y agoThe ice in Antarctica covers approximately 98% of the Antarctic continent. The ice sheet on the continent of Antarctica is about 4,500 years old.
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∙ 9y agoThe oldest oceanic crust is in the west Pacific and north-west Atlantic. They are about 180 to 200 million years old.
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∙ 11y agoThe Zircon Crystal, found in Western Australia, is a sedimentary rock and is about 4.3 billion years old.
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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 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.
Deep ocean sediments are thickest where the underlying crust is?
oldest
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.
What is the oldest ocean?
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. See related link for more information.
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 does the age of the oldest continental crust compare to the age 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 crust compare to the age 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 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 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 compared to the age of the oldest oceanic 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.
What is the age of the oldest ocean?
The oldest oceanic crust is in the west Pacific and north-west Atlantic. They are about 180 to 200 million years old.
How does the age of the continental crust compare to The age of the oldest oceanic 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.
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.
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.
Deep ocean sediments are thickest where the underlying crust is?
oldest
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.
