Earth In Context: Sea-Floor
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- What is this a diagram of?
-the deepest trench on earth
-greater than 10 km deep
What is the Marianas Trench?(2)
The _________ is thinner, has a higher heat flow, denser, and thinner in sediment than ___________.
The (oceanic crust [lithosphere]) is thinner, has a higher heat flow, denser, and thinner in sediment than (continental crust).
Is the thickness of the sediment in the ocean relative to the age of the lithosphere?
If so where is it youngest and where is it oldest?
- -It is younger towards the mid-ocean ridge and older farther out
Where is does new ocean crust form and where is it destroyed
New ocean crust forms at the mid-ocean ridge and old crusts are destroyed at subduction zones as they are being pushed into the mantle.
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