Coast - Content Flashcards
Describe rockfall
Rocks are undercut by the sea/slopes - mechanical weathering
Describe a landslide
Cliff made of softer rocks - slips when lubricated - rainfall
Describe mudflow
Heavy rain - fine material moves down hill
Describe slumping
Soft material overlies resistant material - excessive lubricant - rainfall
Describe soil creep
Slow movement - soil particles move down slope
What is hydraulic action
Force of the water on the rocks
What is abrasion
Sandpaper - Wearing away of shoreline by transported material, E.g Rocks
What is corasion
Friction of load in contact with banks/beds
What is Attrition
Wearing down of rocks - rub against each other - become smaller/rounder
What is solution as a process of wave erosion
Water mixes with salt water - causes rocks to break down - acidic
What is traction
Large boulders roll along sea bed
What is saltation
Small stones bounce along the sea bed
What is suspension
Very small particles carried in moving water
What is solution as a process of transportation by waves
Dissolved material
What is long shore drift
Wave approach at angle - swash moves particles up beach
Backwash moves material down
