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The oldest rock formations of the continental crust have been dated at 4.3 billion years of age, although the findings are encountering a bit of skepticism.
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∙ 14y ago
Santana Longoria III
4.4 billion (APEX)
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Rocks in continental crust are as old as years.?
44 million
How old is the oldest continental crust?
it is 4billion years old
Which has the younger rock the continental crust or oceanic crust?
The youngest rocks will be formed from cooled magma. Therefore volcanism, either on the continental crust or oceanic crust will create the youngest rocks.
Rocks in ocean crust are as old as years?
200 million
Which are younger old seafloor rocks or old continental rocks?
Old sea floor rocks are much younger than old continental rocks! This is because the oceanic lithospheric plate forming the seafloor tends to be recycled at places known as subduction zones where it is forced below less dense (commonly continental) lithosphere. As such the oldest continental rocks tend to be 2-3 billion years old whereas oceanic crust neve tends to be more than a few hundred million years old.
Rocks in continental crust are as old as years.?
44 million
How old is the continental crust?
it is 4billion years old
How old is the oldest continental crust?
it is 4billion years old
Which has the younger rock the continental crust or oceanic crust?
The youngest rocks will be formed from cooled magma. Therefore volcanism, either on the continental crust or oceanic crust will create the youngest rocks.
How old is the Continental plate?
The oldest continental crust is found in large, stable areas with little seismic/volcanic activity found in the centre of continents, called Cratons. Examples of these are Yilgarn Craton in Australia, and the Kaapvaal Craton in South Africa. The oldest rocks found within these cratons can be up to 3.8 billion years old (3,800 million). However, because the forces of erosion and deposition are always at work creating new rocks, continental crust also contains much younger rocks - some only a few hundred thousand years old. In short, there is no specific age for continental crust, and unlike oceanic crust that is created and destroyed at a fairly constant rate, continental crust is less dense and thus doesn't undergo subduction at plate boundaries. Less "recycling" means older rocks are more likely to survive.
Why havent older ocean rocks been discovered?
Oceanic crust is eventually destroyed in subduction zones. Although oceanic crust has been forming on Earth for over 4 billion years, all of the sea floor older than about 200 million years has been recycled by plate tectonics. Continental crust is not subducted and destroyed, so very old continental rocks have survived.
Rocks in ocean crust are as old as years?
200 million
Rocks in ocean crust are as old as years.?
200 million
Is the continental rocks 4 billion years old?
yes.
Which are younger old seafloor rocks or old continental rocks?
Old sea floor rocks are much younger than old continental rocks! This is because the oceanic lithospheric plate forming the seafloor tends to be recycled at places known as subduction zones where it is forced below less dense (commonly continental) lithosphere. As such the oldest continental rocks tend to be 2-3 billion years old whereas oceanic crust neve tends to be more than a few hundred million years old.
Rocks in ocean crust are as old as how many years?
200 million.
What is the age of the continental crust?
3 billion years
