Corn. Worked-out cavities in a mine.
A machine for breaking iron with a falling weight. Fay
War. The shelly, conglomeratic basement limestone bed of the Lower Lias.
So called because the stones, if dry, ring when struck. CF:sun bed
Arkell
Twenty-two carat gold, of which guineas were coined. Standard, 2
A term used esp. in the Western United States for a narrow, deep ravine
with steep sides, larger than a gully; esp. a short, precipitous cleft in
a hillside, formed and occupied by a torrent, and containing gold (as in
California). AGI
Gulf-type (Vacquier) magnetometer
A flux gate or saturable reactor type of recording magnetometer. Used
primarily in aircraft and there includes means for keeping the measuring
element aligned in the direction of maximum intensity (that is, total
field). In this case it records variations in the total field regardless
of variations in its direction. Sometimes used for establishing the
position of the aircraft as well as the magnetometer itself. AGI
A structure formed by mass-movement processes, consisting of widened,
steeply inclined tension fissures or joints, resulting from lateral
displacement of a slide mass and filled with debris derived from above.
Primarily a British usage. AGI
a. See:gummings
b. Small coal broken out by a coal cutter. See also:duff
Pryor, 3
c. Small coal, slack, or duff. CTD
A term used locally in the United States for a clay soil that becomes
sticky, impervious, and plastic when wet. AGI
Same as fuller's earth, and similar to floridine from Gumbri, near Kutais,
Georgia, Transcaucasia, in the former U.S.S.R. Spencer, 3
See:copal
Explosive gelatin. Standard, 2
A person who clears the fine coal, gum, or dirt from the undercut made by
a coal-cutting machine. CTD
The small coal or dirt produced by the picks of a coal cutter. Syn:gum
Nelson
A mixture of yellow or orange secondary uranium oxides formed by
alteration of uraninite.
Applicable when rock or formation being drilled produces cuttings and
sludge, which tend to fill the waterways of a bit or to adhere massively
to the borehole walls or drill-stem equipment. CF:balling formation;
sticky. Long
A borehole in which the charge of explosive has been fired with no other
effect than to blast off a small amount of material at the mouth of the
borehole; also called a bootleg or John Odges. See also:blown-out shot
Fay
A self-dumping box on wheels, used for raising (or lowering) coal in
slopes; a monitor, a skip. Fay
A drill, usually with one or more flutes and with coolant passages through
the drill body, used for deep-hole drilling. ASM, 1
See:guag
A mixture of portland cement, sand, and water applied by pneumatic
pressure through a specially adapted hose and used as a fireproofing agent
and as a sealing agent to prevent weathering of mine timbers and roadways.
Etymol: Gunite, a trademark. To apply gunite; to cement by spraying
gunite. See also:Aliva concrete sprayer
l+ \(: µ*: ª¥8 ( DICTIONARY TERMS:gunite gun See:cement gun
[\B]gunite gun[\N]