rivers Flashcards
what are the 2 main types of erosion
abrasion and plucking
what is erosion
erosion is where rocks and soil get worn away by wind water ice or gravity
what is abrasion
abrasion is the process of wearing down or scraping away rocks or other materials through friction leaving scratches behind called striations
what is plucking
as the glacier moves down it plucks the rocks frozen into the glacier from the ground
what is freeze thaw weathering
Freeze-thaw weathering is a process where water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart over time.
what is a corrie
A corrie, also known as a cirque, is a bowl-shaped hollow found on the side of a mountain, typically formed by glacial erosion.
what is a interlocking spur
An interlocking spur is when a river or stream flows down a slope and creates ridges in the valley.