2.9

Question 1

What are talus scree slopes?

Answer 1

• accumulation of material at bottom of cliff
• scree sits at a 34-40º slope angle
• larger material at bottom of slope
• slope angle increases with sediment size

Question 2

What are block slides?

Answer 2

• debris slides along failure line/bedding plane
• debris is in large sizes

Question 3

What are mudflows?

Answer 3

• water is channelled locally to saturate soil
• rills and lobes created
• lobes are the front edge of deposition at bottom of slope
• rills are the eroded gully left due to movement

Question 4

What is soil creep?

Answer 4

• Soil is repeatedly saturated and dehydrated on a slope
• is pulled downslope by gravity
• small ridges called teracettes are made

Question 5

How are terraces created?

Answer 5

• Rotational slumping
• vegetation at top remains intact, between bare scar faces