The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1911-07-20
PROSPECTING IN COEUR D'ALENES

following interesting and valuable contribution from George
Huston engineer and geoogst OF Muan APP
pears in the last issue of Mining Science
Prospecting the Occur Aene district is most difficult matter
particularly good surface the exception
rather the knowledge therefore, of certain underground
features or which lead mpegnaed areas valuable
Among prominent the socaed black assures slips
which the foowa ssure of the Bunker Hill Sullivan mine
good example Other big shipping mines have them also certain pros
poets.
ACCOMMODATING the black assures or slips tough soapy lead
coced generally with crushed country rock AS rule
they the strike the beds and lead to or connect
goug caused by slight and rubbing Of two por
tons socaed tale slip resulting The plane
Of the break constitutes underground solutions which,
they ompgaed collect mineral matter depotlng
along plane 1t has been known that tacy matter
pecpang ranng action material in solution be-
ing scientifically dubbed the property absorption Its effect
to give ady gray color the the assure slip Such
go g Analysed will be found lead and silver and sometimes
COPPER
crossing purple blue beds the Wallace ST. Regis or
Prhard one such beds will
like gouge the latter squeezed out thin edge and
held the fame Of acetylen lamp this difference can be noted
true will strong od of sulphur and sometimes arsenic
The ether will not candle fame hardly hot enough
know Of where such market has been driven on Tor
hundreds without and then again less than 100 feet got
ore they with orempregnated areas quite positive
Following them horizontally the strike vertically on the dip
good practice according to the formation found.
The socd dry Wallace and Wardn has these
black assures and some shipments made generally Of
Diary silver with low lead and copper The Wallace formation
with the upper St Regis favorable deposition those
deeper the assures followed the dip into the more
favorable the middle ST. Regis down. commercial values might
he found
the dry belt section lined up the geological with the
deposits they will be found nearly coincide Such proper
ties as Hepburn, the Yankee Boy Argentine,
Nellie etc propsed folmaiona DEPTH have chance
Of becoming productive.
Canyon creek type the black assures apt to be
found either end and between bodies They be traced
through from the Gem mine to the Morning and Hunter
in The tie (Oeurd
ing the Hunter up Gentle Annie guch shaft $50 feet
depth with drifting has encountered persistent black Slip which cuts
the Wallace dip has been shipped nearly
the same the dry belt and deep work crossing from
the Younger Older and favorable formations should yield
The appears rake rather strongly east
The Alma property Deaman guch has also the same black
sill aace The National crossed the Wal
lace formation the tunnel on level with the shaft collar.
interesting of this nature is in No tunnel the
Snowstom 40 feet width bounded with black
both and hanging walls the crossing the strike OF the
beds the work Between slips
the strongly mnelazed with iron suphde carrying
la and copper lille the yet commercial is
PROMISING.
nhe Canyon Creek district the vein assures have been formed by
dfential setting the beds the tanks of the granite intrusion
this effect extends for miles to the of the granite Such assures
almost always the strike of the beds angle Operators
prospecting would do well drive the strike carefully testing those
planes carrying the leadcoored gouge above mentioned