Flashcards in Glacial Erosion Landforms - Valley Floor Landforms Deck (10)
What happens when a glacier flows over the land?
It flows over areas of hard rock and areas of soft rock.
What is the soft rock like?
Glacier will carve out a deeper trough.
When the glacier have retreated what happens?
Water will collect in the deeper area and create a long thin lake called a ribbon lake
Where are a lot of ribbon lakes found?
English Lake District.
What happens to the areas of hard rock?
It is left behind called rock steps.
What happens if the glacier hits a resistant outcrop of rock?
It will flow over and around it.
The resistant outcrop becomes what?
A rock mount smoothed by abrasion from the glacier.
What is a roches moutonnee?
Steep jagged faces created by plucking on the lee side and a gradual incline which is smoothed and polished by abrasion on the other en
The roches moutonne may have striations on it indicating what?
The direction of glacier movement.