Which mechanism increases crustal melting when strike-slip fault motion decreases lithospheric thickness?

💡 Explanation

When strike-slip fault motion decreases lithospheric thickness, adiabatic decompression melting occurs because the rapid upward movement reduces pressure on the underlying mantle, lowering its melting point. Therefore, decompression melting results rather than hydration, friction, or radioactivity which are governed by different constraints.

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