What is the connection between glacial troughs and hanging valleys?
As the trough is created, interlocking spurs are truncated and hanging valleys are left behind as the glacier retreats.
As the glacier advances, massive amounts of debris are deposited at the snout, creating large hanging valleys.
The corrie feeds the valley glacier with ice. As the ice advances over the lip of the corrie, this creates a hanging valley.
Continuous freezing and thawing takes place daily. This leads to the formation of scree slopes and hanging valleys.
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