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Butoxors [25]
3 years ago
7

Which theory explains why rocks found on the ocean floor are younger than those found on continents?

History
2 answers:
Vikentia [17]3 years ago
8 0

Sea Floor Spreading :)

Katarina [22]3 years ago
7 0
It is because of subduction<span>: oceanic crust tends to get colder and denser with age as it spreads off the mid-ocean ridges. It gets so dense, that it sinks in the upper </span><span>mantle </span><span>(subduction). This is like a giant recycling system for oceanic lithosphere! Because continental crust is lighter than oceanic crust, continental crust cannot subduct. We therefore still have some very </span>old continental rocks<span> at the surface of the Earth.</span>
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