Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1903-12-19
tudc Of the camp ranges from 5000 to
GEoLoGIcAL srRucruRE.

| tudc Of the camp ranges from 5000 to
| 5000 feet.
GEOLOGICAL STRUCTURE.
Henry NJ. Atkinson, manager Of the
| New England property has placed the
! following simple construction on the
geology OF Bingham.
"The geological structure OF Bing-
| ham Is, In a wide sense, rather simple,
! but In minute detail It is very COM
| plic0ted. The main formation is an Inn
| mense body OF quart2lte with intercal-
| ated strata Of limestone, and this en-
! tire mass has been shot through with
porphyry bikes. The beds OF quartzite
have a general dip to the northward at
varying angles At the head OF Bing-
ham canyon and Carr Fork there Is an
immense igneous intrusion of dense,
black and exceedingly hard porphyry
The quartzite beds dip sharply away
from this intrusive mass, hlch Is per-
haps a dyke or laccolite.
THE ore bodies are found under sev-
eral conditions, as requirements IN the
limestone; as contact deposits between
Limestone and quurtzite or porphyry,
as veins In the porphyry; or as lmpreg-
nations In the porphyry over wide
areas. This last mentioned form Of oc-
ourrenoe is probably the least common.
but careful examination Of q proper
ty which possibly in short time may
become one Of the heaviest producers
In Bingham. shows that the entire body
OF porphyry over an area Of nearly 200
acres, and TO depth Of 400 feet, Is
evenly impregnated with copper aver
aging per cent.
THE ores OF Bingham are copper and
copper-iron sulphldes and galena. TIE
gold value Is generally low In the lead
ore, but IL commonly high In chalco-
pyrite. The lead usually carries high
values in silver Zinc Is present with
the lead, especially In the bodies lying
In fissure veins in the porphyry'
WORK OF GOVERNMENT.
The United States Geological Survey
has conducted an exhaustive examlna-
ito nor the West Mountain district and
the report OF the engineers sent out to
perftrm this work will probably be
forthcoming during the present year
It's issue from the government presses
VIII be awaited with interest.
Prof. j. NJ Boutwell,, who was In
charge Of the corps Of engineers, re-
Gently Issued a bulletin, which Is pre-
limlnary to the complete report In
which he INDUCED I'm historical rather
than geological facts He said: "The
Bingham district IL unique In that II
includes the Oldest recorded mining
claim I'm the state; It Is the only district
lr Ctah In which placer mining haa
been successfully prosecuted. and today
leads the camps Of Utah In the pro due
ton OF copper. Only the more lmpor-
tant stages In the extremely interesting
and instructive history Of this unique
camp npy be noted
EARLY I'm the fall OF 1868 ore was dis
covered by George b. Ogllvle, near the
head OF bingham canyon. On Sept H.
1883 each of the % members OF the Jor-
dan Silver Mining company formally To-.
Gated there, "for mining purposes one
claim Of 200 feet each and one addition
al clllm of 200 feet for the original dis
coverer. This Is the earliest recorded
mining claim In Utah Active prospect
ing led TO the discovery and location Of
promising groupings, but lack OF ia
cllitles for transportation rendered min
Ing operations at this time impracti-
cable, The first shipment of ores from
Utah was carload OF copper ore from
| Bingham canyon, hauled 20 Uintah ON
| the Union Pacific railway, and forward
! ed bv the Walker brothers to Baltimore
! I'm June, 1868.
I'm 1870 the connection of the Union
and Central Pacific railroads by the
Utah Central with Salt Lake city, the
inauguration Of the branch line TO
Bingham, the results OF experiments In
the reduction of local ores, and the sue
cessful exploitation of the Emma mine
and adjoining properties in the Wa
satch mountains; In Bingham, many
bodies Of lead ore, mainly carbonate
were exploited The first efficient de-
volopment Of The mines of the district
was e, nducted by Messrs. Bristol and
| Daggett in the Winnamuck and Span
! ish, and the largest bodies of argenti-
| ferrous lead ore were developed In the
| Jordan and Galena mines, In 1874 the
| bulk o. lead -carbonate ore was exhaust
| ed. and In the Wlnnamuck, Neptune,
Spanish and Utah sulphldes had been
| encountered
IS, eclal attention was directed to
saving the gold in the superficial oxi-
\ died portions of the ore shoots In the
sllic fled limestCnes. Various expert
mentl IT, milling and cyanidng were
conducted, and large stamp mills were
erected Desrite claims that IN special
cases cyuniding was successful the
general opinion prevails that the pres
ence OF copper necessitated the use NJ
so much cyanide that no profit could
be made, and, further that the lliceous
ores OF Bingham had never been worked
successfully In the early eighties there
we're developed in the outer western
slopes Of the range. bodies Of carbonate
ore which continued 30 afford an inter-