Santa Fe new Mexican. [volume] (Santa Fe, N.M.) 1898-1951, 1899-11-21
SOME COMMON MINING TERMS.
You Often See Them in Print and They're
Coed Enough to Know,

| All Wofk Ill d. lHlIlS Is Ol TWO hliluS-
| development work and stopping. Devel-
| opment work consists in making pas
| sages through the ground for the pur-
! pose G) of ascertaining the extent and
| value of known bodies of ore; (2) fol-
| exploring unknown territories in order
to discover new ore bodies; (3) for the
purpose of facilitating or increasing the
work of taking out the ore. These pas
| sages receive various names, such as
a shaft, which is a perpendicular OPEN
| ing; an incline, which is one run on a
slope; a tunnel, which is on the level.
| These three extend from the surface of
| the ground. Within the mine and open
ing from those mentioned or from each
other there are levels, eross-cuts, up
raises and wines, the latter being a
perpendicular opening u from n lev
ell to meet another. All this develop
ment work may be done in barren rock
without any c~ompensating ore value, or
the ore taken out may be Of so great
value as to pay all the expenses and pay
a handsome profit besides. More often
a considerable quantity Of ore is taken
out which returns something to the
miner, although it does mot repay the
entire cost of development.
Any work toward taking out the ore
more than is necessary for the purpose
called stopping. The chambers from
which the ore has been excavated are
called the Slopes, and these necessarily
vary In size and character with the size
and position of the vein or ore body.
Drifting is the act of following along
with the curse of the vein. Definitions
of other mining terms are IS follows:
~Adit-Open cut or tunnel on the vein.
ACKNOWLEDGEMENTS transported and
deposited by water.
Amalgam-Gold or silver combined
with mercury.
Apex-The top or highest point of a
vein.
Auriferous-Any rock or sand bearing
gold.
Bedrock-Rock underlying placer
mines.
Blind lode-Where there appears no
outcrop to a vein.
Breast-The face of a tunnel or drift.
Breccia-Angular rocks cemented to-
gether.
Cage-An elevator used i'm hosting
ore.
Cap rock-Rock everything vein stone
or ore.
Collar-The top of a shaft or Wine.
Contact-A junction of two kinds of
rock, such as lime and perphyry.
Contact vein-A vein between two dis
similar rock masses.
Country rock-The rock on each side
of a vein.
Cross-cut-A level driven across the
course of a vein.
Dip-The slope or pitch Of a vein.
Face-The end of a drift or tunnel.
Fault-The displacement of a stratum
or vein.
Feeder-A small vein entering into a
larger vein.
Fissure vein-A crack in the earth's
crust containing mineral.
Foot wall-Rock beneath a vein.
Cash vein-A vein wide at the top and
closing at a short depth.
Hanging wall-The layer Of rock or
wall overhanging a lode.
Horse-A mass of rock between the
branches Of a vein.
In place-Not having been disturbed
from it's original position.
Level-A horizontal passage in a mine
diverging from the shaft.
Outcrop-The portion of a vein show
ing at the surface.
Petering-Giving out; failing.
Pocket-A rich spot in a vein or de-
posit.
Sailing a mine-Placing foreign ore in
the %crevices of a vein for the purposes
of deceiving.
Strike-The extension of a lode in a
direction.
Stulls-A framework to support the
rubbish when stopping.
Sump-A hole in the bottom of a shaft
or tunnel for collecting the water.
Vein-An aggregation of mineral mat
ter in rock assure.
Seam and stringer are used inter-
changeably for narrow branches run
ming off from the vein or lead.
Lode-A vein, thus a lode claim, is a
claim having in it's boundaries a vein.
This term is sometimes used to desig-
to tho o1o ty,o ;toaOf "#H ....