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Colorado Deposit

Producer in Churchill county in Nevada, United States with commodities Gold, Silver, Arsenic, Antimony, Mercury, Barium-Barite, Tungsten
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Reserves and resources
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10111472
MRDS ID M242934
Record type Site
Current site name Colorado Deposit
Alternate or previous names Fondaway Canyon Mine, NBMG Sample Sites 3302, 3303.
Related records 10310504

Geographic coordinates

Geographic coordinates: -118.20403, 39.80407 (WGS84)
Elevation 1585

Site location context

Political divisions (FIPS codes)

Churchill(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fondaway Canyon(quadrangle 1:24,000 scale)

Carson Sink(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Carson Desert(hydrologic unit)

Carson(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

Bureau of Land Management NV BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Churchill

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 022N 034E 06 Nevada

Comments on the location information

  • IN FONDAWAY CANYON NE AND EAST OF QUICK TUNG TUNGSTEN MINE. ; INFO FROM LAND.ST :(1972); PREVIOUS QUAD DESIGNATION = RENO (1971) 1:250000

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Arsenic Critical Tertiary
Antimony Critical Tertiary
Mercury Tertiary
Barium-Barite Critical Tertiary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Cinnabar Gangue
Pyrite Gangue
Quartz Gangue
Scheelite Gangue
Stibnite Gangue

Alteration

  • (Local) Silicification

Analytical data

Result SAMPLE 3302 OF SILICIFIED PHYLLITE FROM OPEN PIT CONTAINS 3% FE, 0.2% MG, 0.07% CA, 0.5% TI, 150 PPM MN, 2 PPM AG, 3000 PPM AS, 15 PPM AU, 500 PPM B, 1500 PPM BA, 70 PPM CR. 30 PPM CU, 20 PPM LA, 5 PPM MO, 20 PPM NI, 50 PPM PB, 100 PPM SB, 10 PPM SC, 100 PPM SR, 100 PPM V, 20 PPM Y, 150 PPM ZR, AND BY AA ANALYSIS 12 PPM AU. SAMPLE 3303 FROM OPEN PIT CONTAINS 3% FE, 0.3% MG, 0.1% CA, 0.5% TI, 10 PPM MN, 5000 PPM AS, 500 PPM B, 2000 PPM BA, 1.5 PPM BE, 150 PPM CR, 50 PPM CU, 20 PPM LA, 15 PPM NI, 20 PPM PB, 10 PPM SC, 100 PPM V, 20 PPM Y, 100 PPM ZR, AND BY AA ANALYSIS, 0.15 PPM AU.

Mineral occurrence model information

Model code 172
USGS model code 26a
Deposit model name Carbonate-hosted Au-Ag
Mark3 model number 15

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Unknown
    Rock description Unknown
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Unknown;Unknown;Unknown;Unknown
    Rock description Unknown;Unknown;Unknown;Unknown

Nearby scientific data

(1) -118.20403, 39.80407
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ne-Trending Faults

Ore body information

  • General form TABULAR
    Strike N71E
    Dip NEAR 90
    Width 3M

Controls for ore emplacement

  • Fault Zones

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Shady Run District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner Tenneco Minerals
    First year 1989
  • Type Owner
    Owner George Fisk

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 1995000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.167 g/mt Gold Major 1986

Comments on the reserve resource information

  • 4.4 MILLION TONS OF 0.134 OZ/TON ORE HAVE REPORTEDLY BEEN DEVELOPED HERE BUT MUCH OF IT IS REFRACTORY AND PROBABLY NOT OPEN-PITTABLE.

Comments on the workings information

  • SEVERAL OPEN CUTS, ADITS, OPEN STOPES, DRILL ROADS. "OXY" PIT, "STIBNITE" PIT, FISK PIT, MAIN PIT EXTENDING FOR ABOUT 3000 FEET EAST AND UPHILL FROM THE QUIK TUNG (FISK) TUNGSTEN MINE.

Comments on development

  • G. FISK DISCOVERED AU MINERALIZATION IN FONDAWAY CANYON IN THE MID-1970'S AND BEGAN PRODUCTION, IN A JOINT VENTURE WITH WILBUR ROBERTSON, IN EARLY 1978. THE ORE WAS REMOVED FROM SEVERAL OPEN CUTS ON THE CANYON SLOPES AND HAULED TO A SMALL MILLSITE IN THE CANYON BOTTOM. ORE WAS CRUSHED, LEACHED WITH CYANIDE IN A 1000 TON STEEL LEACH VAT, AND THEN WASTED ON AN ADJACENT TAILINGS PILE. THE PREGNANT SOLUTIONS WERE PUMPED THROUGH A CARBON COLUMN TO ABSORB THE AU VALUES, THE AU BEING LATER STRIPPED OFF THE LOADED CARBON AND PRECIPITATED WITH ZINC DUST IN A MERRILL CROWE PROCESS. OVER 2500 OZ OF AU WERE REPORTEDLY PRODUCED BY THIS OPERATION. IN 1980, OCCIDENTAL MINERALS CORPORATION LEASED THE FISK AND ROBERTSON HOLDINGS AND PERFORMED MAPPING AND GEOCHEMICAL SAMPLING. A NUMBER OF DRILL HOLES WERE COMPLETED IN 1981 AND 1982 AND GEOPHYSICAL SURVEYS WERE COMPLETED. SINCE 1982 A NUMBER OF MINING CONCERNS REVIEWED THE ECONOMIC POTENTIAL OF THE PROPERTY LEADING UP TO TENNECO MINERALS SIGNING A LEASE
  • AGREEMENT WITH THE OWNERS IN FEBRUARY 1987.

Reference information

Bibliographic references

  • Deposit

    TENNECO MINERALS COMPANY, 1989, DRAFT ENVIRONMENTAL ASSESSMENT FOR THE TENNECO MINERALS COMPANY FONDAWAY CANYON PROJECT

  • Production

    1978-1980 CUMULATIVE PRODUCTION: TENNECO MINERALS COMPANY, 1989, DRAFT ENVIRONMENTAL ASSESSMENT FOR THE TENNECO MINERALS COMPANY FONDAWAY CANYON PROJECT.

  • Reserve-Resource

    BONHAM, H.F., 1986

General comments

Subject category Comment text
Deposit SULFIDES OCCUR IN WNW-TRENDING MARBLE BEDS IN FONDAWAY CANYON. NO SKARN IS PRESENT, BUT SOME SCHEELITE IS ASSOCIATED WITH QUARTZ VEINLETS IN THE MARBLE. THE SCHEELITE OCCURS AS LARGE CRYSTALS, UP TO 10 CM IN MARBLE. CINNABAR OCCURS IN LATE FRACTURES CUTTING THE MARBLE. STIBNITE OCCURS AS MASSIVE LENSES IN MARBLE AND WITH AU ORE IN PHYLLITE. THE FAULT ZONES ARE BRECCIATED AND SILICIFIED, NEARLY VERTICAL, UP TO 3 M WIDE. SULFIDE ORE CONTAINS PYRITE, STIBNITE, AND ARSENOPYRITE AND IS TYPICALLY CARBONACEOUS.
Deposit THIS IS ONE OF THREE DEPOSITS EXPLORED BY TENNECO MINERALS WHICH COMPRISE THE FONDAWAY CANYON MINE. SEE RECORDS RE00273 (REED DEPOSIT) AND RE00274 (SOUTH MOUTH DEPOSIT) FOR THE OTHER TWO.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1988 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-JAN-1993 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.