Questions tagged [oceanic-crust]
The oceanic-crust tag has no usage guidance.
What caused the transverse "scarring" of the Atlantic Ocean floor [duplicate]
In Google Maps the floor of the Atlantic Ocean is shown as having much transverse "scarring". What are these crust formations? They're ~2,000 miles long. What caused them?
How is felsic magma produced at island arcs?
I previously believed that continental crust owes its lower density to the partial melting of oceanic crust; the mantle would partially melt at mid-ocean ridges to produce basaltic crust, and when ...