A basaltic accumulation of smaller size than the plateau or flood basalts,
arising from the confluence of lava flows from a large number of small,
closely spaced volcanoes. CF:plateau basalt
Syn:multiple-vent basalt
A volcano in the shape of a flattened dome, broad and low, built by flows
of very fluid basaltic lava or by rhyolitic ash flows. Syn:lava dome;
basaltic dome. AGI
a. A small fault or slip. See also:subsidence
b. A fault or dislocation.
c. The maximum relative displacement of points on opposite sides of a
fault and far enough from it to be outside the dislocated zone. Also
called net shift. See also:dip shift; normal shift; strike shift;
vertical shift.
d. The number of hours or the part of any day worked. Also called tour.
Long
e. The gang of workers employed for the period, such as the day shift or
the night shift. Fay
a. In bituminous coal mining, a general term for workers who assist
brattice men, repairmen, timbermen, and other workers not engaged in the
actual mining of coal. DOT
b. See:track shifter
A gear on a gear-feed swivel head of a diamond drill by means of which the
feed-shifter rod may be moved to engage the shifter-rod pin into the
selected feed gear. Long
Street clothes into which the miner changes on emerging from a mine.
Korson
A short rod or shaft attached to the shift-gear shaft by means of which
the ratio of the driving to the driven gears may be changed in a gear-feed
swivel head of a diamond drill or other transmission-gear mechanism.
Long
Work performed at a mine and paid for by day wage as opposed to payment by
results, namely by tonnage, yardage, or price list. Nelson
See:silicified wood
A form of leggings that protect the shinbone. They are designed in both
metal and tough plastic and are secured by leather straps around the legs.
Nelson
Stone from which shindles or roofing slates are made. Local variant of
shingle. Arkell
a. Coarse, loose, well-rounded waterworn detritus or alluvial material of
various sizes; esp. beach gravel, composed of smooth and spheroidal or
flattened pebbles, cobbles, and sometimes small boulders, generally
measuring 20 to 200 mm in diameter; it occurs typically on the higher
parts of a beach. The term is more widely used in Great Britain than in
the United States. See also:chingle
b. A place strewn with shingle; e.g., a shingle beach. Etymol: probably
Scandinavian, akin to singel, coarse gravel that sings or crunches when
walked on. AGI
A machine for squeezing puddled iron. Webster 3rd
The arrangement of closely spaced veins overlapping in the manner of
shingles on a roof. Syn:imbricate structure
In wrought iron manufacture, the operation by which sinter and other
impurities are removed from a bloom and the metal solidly welded together
by hammering and squeezing. Also called nobbing. Henderson
As applied to the degree of luster of minerals, means those that produce
an image by reflection, but not one well-defined, as celestite.
See:suspension
An auger having a simple spiral (helical) body and a single cutting edge,
with or without a screw on the end without a spur at the outer end of the
cutting edge, used to obtain soil samples in sticky material. Long
Longitudinal lining plates for ball mill of wedgelike shape. The thin edge
of each wedge underlies the thick edge of the preceding plate in the
direction of revolution. Pryor, 3
Meteorological and oceanographic data taken for a specific location,
observed from a ship underway or at anchor. Hy
In a dipper shovel, the hinge on which the stick pivots when the bucket is
hoisted. Nichols, 2