A soil penetration test in which a steel cone of standard shape and size
is pushed into the soil and the force required to advance the cone at a
predetermined, usually slow and constant rate, or for a specified
distance, or in some designs the penetration resulting from various loads,
is recorded. AGI
A 30 degrees to 60 degrees cone having a basal diameter approx. the same
size as an a-size diamond-drill rod used to determine the force required
to thrust the cone downward into silty or fine to medium-coarse sands, and
hence to obtain information that a foundation or soils engineer may use to
calculate some of the load-bearing capabilities of such formations.
Syn:cone penetrometer
A cone penetrator equipped with a device that will register the pressure
required to drive the cone downward into the formation being tested.
Syn:cone penetrator; penetrometer. Long
A rotary drill, with two hardened knurled cones that cut the rock as they
roll. Syn:roller bit
Conical vessel fed centrally with fine ore pulp. "Undersize" is discharged
through a flexible pipe (gooseneck), which permits variation of
hydrostatic pressure. This apex discharge is thick and carries the larger
sized particles. The peripheral top overflow is thin and carries the finer
fraction of the solids. Pryor, 3
A curved dike or sheet that is part of a concentric set of such forms that
dip inward. Billings
A method of separating impurities from coal in a metallic cone containing
a mixture of sand and water with a specific gravity higher than that of
coal and lower than the impurities. The coal floats, and the impurities
sink. See also:cone classifier
Upper Upper Devonian. AGI
The detonation velocity of an explosive or blasting agent under
confinement, such as in a borehole. Dick, 2
Artesian water.
An enclosed space that has the following characteristics: its primary
function is something other than human occupancy; it has restricted entry
and exit; and it may contain potential or known hazards. Examples of
confined spaces include, but are not limited to, tanks, silos, vessels,
pits, sewers, pipelines, tank cars, boilers, septic tanks, and utility
vaults. Tanks and other structures under construction may not be
considered confined spaces until completely closed. Restricted entry and
exit means physical impediment of the body, e.g., use of the hands or
contortion of the body to enter into or exit from the confined space.
ANSI
a. A watertight bed above or below a stratum containing artesian water.
Fay
b. An impervious stratum above and/or below an aquifier. BS, 10
c. A body of impermeable or distinctly less permeable material
stratigraphically adjacent to one or more aquifers. CF:aquitard;
aquifuge; aquiclude. AGI
Said of a stream, glacier, vein, or other geologic feature that combines
or meets with another like feature to form one stream, glacier, vein, etc.
AGI
The quality, state, or condition of being conformable, such as the
relationship of conformable strata. AGI
Successive beds or strata are conformable when they lie one upon another
in unbroken and parallel order and no disturbance or denudation took place
at the locality while they were being deposited. If one set of beds rests
upon the eroded or the upturned edges of another, showing a change of
conditions or a break between the formations of the two sets of rocks,
they are unconformable. CF:unconformable
A map projection on which the shape of any small area of the surface
mapped is preserved unchanged. AGI
A term used in Chile for coba with a high salt content. See also:coba
AGI
a. The freezing point.
b. The temperature at which an oil becomes a solid or is reduced to a
standard pasty state.
A coarse-grained clastic sedimentary rock, composed of rounded to
subangular fragments larger than 2 mm in diameter (granules, pebbles,
cobbles, boulders) set in a fine-grained matrix of sand or silt, and
commonly cemented by calcium carbonate, iron oxide, silica, or hardened
clay; the consolidated equivalent of gravel. The rock or mineral fragments
may be of varied composition and range widely in size, and are usually
rounded and smoothed from transportation by water or from wave action.
CF:breccia
See:paraconglomerate
A conglomerate that has reached the same state of induration as a
quartzite.