Which geomorphic outcome arises following rapid tectonic uplift of a drainage basin with established alluvial fans?

💡 Explanation

When tectonic uplift surpasses the rate of alluvial deposition, stream incision occurs as rivers cut downwards through existing alluvial fans due to increased potential energy and flow velocity, creating distinct river terraces. Therefore terrace formation results, rather than braided streams, lacustrine sediments, or aeolian stabilization, which require different depositional environments.

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