unit three b: suites of landforms within glacial landscapes - erosional landscapes Flashcards
1
Q
where is the glacial landform that we studied for this unit?
A
cwm idwal/nant ffrancon valley in snowdonia
2
Q
what are the different landforms available in nant ffrancon valley?
A
- cirques
- till and morraines
- misfit stream
- āuā shaped valley
- glacial trough
- pyrimidal peak
- aretes
3
Q
what is pen y benglog?
A
within the band of hard resistant rock at the top of the ogwen step
4
Q
what is ogwen step?
A
170m drop in the valley floor = drop in altitude
1) geology change from hard to soft rock
2) confluence of two ice bodies
5
Q
what is gibson ridge?
A
an arete separating cwm creifon and cwm bochlyd
6
Q
what is the name of the pyrimidal peak in nant ffrancon valley?
A
glyder fawr
7
Q
what is cwm coch?
A
small hanging valleys
8
Q
how many cirques are located in nant ffrancon valley and where?
A
7 occupying the north-east facing slope. none occur on the south/west side of the valley
