A swell in
geology
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth ...
is a domed area of considerable areal extent.
According to Leser, it is also called a
sill (geology)
In geology, a sill is a tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or along the direction of foliation in metamorphic rock. A sill is a ''concordant intrusive sheet' ...
, and is a gently arched landform of various orders of size in
topographic
Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the landforms and features themselves, or a description or depiction in maps.
Topography is a field of geoscience and planetary scienc ...
, sub-
glacial
A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ...
or sub-
hydric geology. It may be as small as a rock formation in a river or may assume continental scale.
[Leser, Hartmut (ed.). ''Wörterbuch Allgemeine Geographie'', Munich: dtv, 2005, p. 822.]
References
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Landforms