Delta Depositional Environments Quiz

What is a fundamental requirement for the formation of a delta?

• High wind speeds

• A river providing sediment

• Volcanic activity

• Presence of a mountain range

Which factor primarily determines the geometry of a delta?

• Presence of marine life

• Relative river, tidal, and wave influence

• Human activities

• Temperature variations

What is the effect of a river's outflow density being less than the basin water density?

• The inflow evaporates

• The inflow causes a tsunami

• The inflow floats on top

• The inflow sinks immediately

How does the type of sediment fed to the shoreline affect delta morphology?

• It only affects the delta's temperature

• It influences the distribution and deposition patterns

• It determines the color of the delta

• It has no effect

What is the role of depositional slopes in delta formation?

• They determine the delta's color

• They influence the distribution of sediment

• They have no role

• They only affect the delta's temperature

What is the 'bay line' in a delta system?

• A line representing the delta's temperature gradient

• A line showing the highest point of the delta

• A line indicating the limit of marine influence

• A line marking the deepest part of the delta

Which part of the delta system is characterized by floodplain deposits?

• Delta front

• Lower delta plane

• Pro delta

• Upper delta plane

How do storm wave influenced deltas differ from fluvial dominated deltas?

• They have more vegetation

• They show more wave-dominated deposits

• They have no sedimentary structures

• They are smaller in size

What is a characteristic feature of a storm wave dominated strat column?

• Completely reworked fluvial deposits

• Presence of volcanic rocks

• Presence of only clay deposits

• Absence of any sediment

What happens to delta lobes during transgression?

• They disappear completely

• They become more stable

• They experience erosion and reworking

• They expand rapidly