Castilla Y León PAU Geology And Environmental Sciences Practice Questions - Castilla Y León PAU Geology And Environmental Sciences Exam (Geología Y Ciencias Ambientales) Exam

At mid-ocean ridges, what geological process accounts for the formation of new oceanic lithosphere?

Subduction of continental crust into the lower mantle Decompressional melting of ascending mantle peridotite generating basaltic magma High-pressure contact metamorphism of deep-sea sediments Tectonic collision creating thick continental roots

Correct Answer:

Decompressional melting of ascending mantle peridotite generating basaltic magma

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