cutinite
A liptinite maceral formed from terrestrial plant cuticles.
Mining and extraction
591 entries in this trade.
cymogene
A highly volatile liquid, condensed by cold and pressure from the first products of the distillation of petroleum; used for producing low temperatures.
damp
A gaseous product, formed in coal mines, old wells, pits, etc.
dan
A small truck or sledge used in coal mines.
DAO
Initialism of de-asphalted oil, a crude oil refinery process stream.
Davy lamp
A miners' lamp or safety lamp used in coal mines to prevent explosions.
day level
A level driven from the surface.
dead end
The inner end of a drift or tunnel.
dead ground
the portion of a vein in which there is no ore
deads
The substances that enclose the ore on every side.
depillar
to remove a pillar, or pillars, from a mine
depletion
gradual expense or use of natural resources over time.
depressant
An agent that inhibits the flotation of a mineral or minerals.
deputy
A person employed to install and remove props, brattices, etc. and to clear gas, for the safety of the miners.
dibhole
The lowest part of a mine, into which the water drains.
dig
To take ore from its bed, in distinction from making excavations in search of ore.
diktytaxitic
adjectiveMining and extraction
Texture of certain basalts containing abundant angular interstitial gas cavities between the plagioclase laths
dilving
The shaking of tin ore in a sieve held underwater so that the waste flows out, leaving the tin behind.
dirt
In placer mining, earth, gravel, etc., before washing.
dish
That portion of the produce of a mine which is paid to the land owner or proprietor.
distillation
Separation of petroleum into specific hydrocarbon groups; fractionation.
district
A specific, usually named area of the coalface where particular seams are worked.
dog-belt
A broad leather belt worn around the waist for drawing dans or sledges in a mine.
dook
A heading or roadway following the dip of the strata.
downcast
A ventilating shaft down which air passes in circulating through a mine.
dram
A cart formerly used to haul coal in coal mines.
drawer
A wagoner or person who pushes underground tubs.
dreikanter
A type of pebble that has three curved faces formed by wind-blown sand.
dresser
A kind of pick for shaping large coal.
drift
A passage driven or cut between shaft and shaft; a driftway; a small subterranean gallery.
drift mine
Any mine reached by a drift (horizontal or inclined passage) from the surface.
drifter
A person employed in driving in rock other than coal.
driftway
A drift, or horizontal passage in a mine.
drive
To dig horizontally; to cut a horizontal gallery or tunnel.
drive unit
A mechanical system that provides the reciprocating motion for shaker conveyors, which transport ore or coal along underground trough lines.
dropper
A branch vein which drops off from, or leaves, the main lode.
dry blower
A machine that uses an air blower to blow away light fines to concentrate heavy fines and larger bits, from pay dirt. This concentrate can then go through further refinement.
Dudley
A miner's container for water for drinking.
dyke
A fissure in a rock stratum filled with intrusive rock; a fault.
einkanter
A type of pebble that has a single curved face formed by wind-blown sand.
elvan
The rock of an elvan vein, or the vein itself.
embrechite
A type of migmatite where the crystal structures of the rock before metamorphism are partially preserved.
endogangue
Gangue that is located inside phosphatic grains.
eolith
Crudely chopped flints, believed to be naturally produced by geological processes such as glaciation.
equigranular
adjectiveMining and extraction
Composed chiefly of grains of similar size.
essexite
A form of silica-undersaturated pyroxene gabbro, containing nepheline and orthoclase as essential constituents.
exogangue
Gangue that is located outside phosphatic grains.
fabric
The appearance of crystalline grains in a rock.
facework
Work done at the face, such as the coalface.
fang
A channel cut or pipe set for the purpose of carrying fresh air to working miners.
fanhouse
The building housing a fan that ventilates a mine.
farmee
A legal entity that contracts part of a mining or oil lease from a farmor in exchange for services.
farmer
The lord of the field, or one who farms the lot and cope of the crown.
farmor
An owner of oil or gas leases that exchanges part of them to a farmee for services.
fathomage
The amount of money paid to a miner based on fathoms of material worked.
fault
A point at which something is divided, interrupted, or disconnected.
fell
The finer portions of ore, which go through the meshes when the ore is sorted by sifting.
felsic
adjectiveMining and extraction
Enriched in minerals predominantly composed of the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.
fettler
An ostler; one who looks after the horses in a mine.
fire
To set off an explosive in a mine.