Which process influences alluvial terraces when base level drops?

💡 Explanation

Stream incision carves into the existing alluvial deposits due to drop in base level. Stream incision removes previously deposited sediment forming terraces, thereby changing existing landscapes, because the kinetic stream energy shifts its focus to erosion. It may occur in other modes rather than flooding.

• Which mechanism largely governs stream incision rates in tectonically active mountain regions?
• Which mechanism causes increased flood frequency in populated regions near alluvial fans after prolonged drought?
• Which mechanism minimizes seismic wave energy transmitted across a fault line during earthquakes?
• Which atmospheric-driven effect causes enhanced coastal upwelling currents along western continental edges at mid lats?
• Which process intensifies sediment stratification in a fjord's benthic zone following seasonal meltwater pulses?
• Which sedimentary consequence typically results when rapid deglaciation occurs near a fjord complex?