Which process leads to the formation of deep submarine fans at the mouths of fjords following deglaciation?

💡 Explanation

When deglaciation occurs, sea levels rise rapidly exposing unstable glacial sediments in fjords, initiating gravity flows (turbidity currents) because of steep topography, depositing coarse sediments at mouths. Therefore sediment gravity flows result, rather than circulation change, as the dominant mechanism rather than tectonic plate subsidence, chemical weathering which affects bedrock properties slowly over time.

• Which coastline transformation occurs with high sediment longshore drift?
• Which mechanism explains localized crustal uplift preceding major earthquakes near subduction zones?
• Which phenomenon frequently results when tectonic plates slide past each other along a transform fault?
• Along subduction zones, which mechanism primarily controls variability in explosive volcanic eruption intensity?
• Which outcome occurs when heavy tephra fall accumulates?
• Which mechanism causes increased flood risk when building impermeable surfaces on an alluvial fan?