Geology Reference
In-Depth Information
Table 10.3—Cont'd
Orientation with
ice flow
Landform
Description
Gentle hill
A mound of till resting on a isolated block of bedrock
Hummocky ground
moraine
(See hummocky moraine above)
Cover moraine
A thin and patchy layer of till that reveals the bedrock topography in part
(a blanket ) or in full (a veneer)
Ice marginal during deposition
Transverse
End moraines:
Any moraine formed at a glacier snout or margin
Terminal moraine
An arcuate end moraine forming around the lobe of a glacier at its peak
extent
Recessional moraine
An end moraine marking a time of temporary halt to glacial retreat and not
currently abutting a glacier
Push moraine
An end moraine formed by sediment being bulldozed by a glacier snout.
Some push moraines show annual cycles of formation and comprise a set
of small, closely spaced ridges
Non-orientated
Hummocky moraine
(See hummocky moraine above)
Rockfall, slump, debris
flow
Discrete landforms produce by each type of mass movement
Source:
Mainly adapted from Hambrey (1994)
Plate 10.10
Line of angular boulders marking remnants of a lateral moraine in Coire Riabhach, Isle of Skye, Scotland.
Cuillin ridge - an arête - may be seen in the background. The peak in the right background is Sgurr nan Gillean - a horn.
(
Photograph by Mike Hambrey
)
