2. A fjords is a glaciated valley that has
been flooded by the sea, creating an
estuary. Unlike a water-carved valley,
which is V-shaped in profile, glacially
carved fjords are U-shaped valley with
steep walls.
Commonly, a shallowly submerged
glacial deposit of debris (call a sill or
moraine) is located near the ocean
entrance that marks the farthest extent of
the glacier.