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a. Any ridge with a sharp summit and steep slopes of nearly equal
inclination on both flanks, and resembling in outline the back of a hog;
specif. a sharp-crested ridge formed by the outcropping edges of steeply
inclined resistant rocks, and produced by differential erosion. The term
is usually restricted to ridges carved from beds dipping at angles greater
than 20 degrees . CF: cuestab. A term applied in New England to a drumlin (western Massachusetts) and
to a horseback or esker (Maine). AGI
c. The name given by geologists to the ridgy structure of certain
districts, which consist of alternate ridges and ravines, occasioned
either by the sharp undulations of the subjacent rocks, or more frequently
by the erosive action of mountain torrents that cut out the ravines and
leave the ridges or "hog's-backs" standing between. This structure occurs
most abundantly on the lower slopes and flanks of mountain ranges.
AGI
d. A sharp anticlinal, decreasing in height at both ends until it runs
out. AGI
e. A ridge produced by highly tilted strata. AGI
f. Local term for drumlins in western Massachusetts. AGI
g. A name applied in the Rocky Mountain Region to a sharp-crested ridge
formed by a hard bed of rock that digs rather steeply downward.
h. A ridge or lines of high hills with sharp summits and steeply sloping
sides. Long
i. Eng. A sharp rise in the floor of a coal seam. Fay
Source:
Dictionary of Mining, Mineral, and Related Terms
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