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a. A shallow steel or porcelain dish in which drillers or samplers wash
drill sludge to a gravity concentrate and separate the particles of heavy
minerals from the lighter-density rock powder to ascertain if the rocks
traversed by the borehole contain minerals of value. Syn:
tin dish Long
b. Hardpan.
c. Fireclay or underclay of coal seams.
d. A trough or section of a pan conveyor or shaker conveyor.
Nelson
e. The framework of a belt or chain conveyor. See also:
tray Mason
f. A circular steel dish from 10 to 16 in (25 to 40 cm) in diameter at the
top, from 2 to 2-1/2 in (5.1 to 6.4 cm) deep, and with sides sloping at 35
degrees to 40 degrees to the horizontal, used for testing and working
placer deposits. Syn: batea;
miner's pan;
prospecting pan;
gold pan.
CF: dish
g. A carrying scraper. Nichols, 1
h. See: panning
Source:
Dictionary of Mining, Mineral, and Related Terms
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