A clamshell grab bucket of 5 to 7 tons capacity. Fay
A mine car for carrying ore or waste rock. Weed, 2
An inclined passage, from 3 to 4 ft (approx. 1 m) square, for the transfer
of ore to a lower level, car, conveyor, etc. It may be constructed through
waste fills. See also:orepass
A genetically related group of orebodies that may have a common root or
source rock but that may differ structurally or otherwise. AGI
Any tectonic, lithologic, or geochemical features considered to have
influenced the formation and localization of ore. AGI
a. A machine for breaking up masses of ore, usually prior to passing
through stamps or rolls. See also:crusher
b. See:crusher man
a. Ore lying underground.
b. Right or claim to ore from ownership of land in which it is found.
a. A body of ore. See also:mineral deposit
b. A mineral deposit that has been tested and is known to be of sufficient
size, grade, and accessibility to be producible to yield a profit. (In
controlled economies and integrated industries, the "profit" decision may
be based on considerations that extend far beyond the mine itself, in some
instances relating to the overall health of a national economy.)
See:positive ore
Ore exposed on two sides. First class, blocks with one side hidden; second
class, blocks with two sides hidden; third class, blocks with three sides
hidden. See also:probable ore
An injected wall-like intrusion of magmatic ore, forced in a liquid state
across the bedding or other layered structure of the invaded formation.
Schieferdecker
A combination of several ore deposits into one common whole or system.
The cleaning of ore by the removal of certain valueless portions, such as
by jigging, cobbing, vanning, etc. See also:concentration;
beneficiation; preparation. Syn:mineral dressing; ore preparation.
Fay
The whole or any part of the ore below the lowest level or beyond the
range of vision. The prospective value of a mine beyond or below the last
visible ore, based on the fullest possible data from the mine being
examined, and from the characteristics of the mining district.
See also:possible ore; prospective ore. Fay
An orebody that is exposed on one side, or shows only one face, and of
which the values can be determined only in a prospective manner, as
deducted from the general condition of the mine or prospect. Fay
A gas or fluid that dissolves, receives by fractionation, transports, and
precipitates ore minerals. A mineralizer is typically aqueous, with
various hyperfusible gases (CO2 , CH4 , H2 S, HF),
simple ions (H+ , HS, Cl- , K, Na, Ca), complex ions
(esp. chloride complexes), and dissolved base and precious metals.
Syn:geologic mineralizer; mineralizer; hydrothermal solution.
The origin of ores.
The branch of applied geology dealing with the genetic study of ore
deposits. Syn:metallogeny; mining geology.
See also:economic geology
Probably Ni2 FeAs2 ; hexagonal. From Josephine Creek,
Josephine County, OR. Named from the locality. Also spelled oregonit.
Hey, 2
In metal mining, a person who directs and regulates the storage of iron
ores of various grades in bins at shipping docks so that the grade of ore
contained in each bin will contain the approximate percentage of iron
guaranteed to the buyer (iron and steel mills). DOT
Any natural feature--such as alteration products, geochemical variations,
local structures, or plant growth--known to be indicative of an orebody or
mineral occurrence. AGI