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Pinson Mine

Producer in Humboldt county in Nevada, United States with commodities Gold, 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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Reserves and resources
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10045085
MRDS ID M232744
Record type Site
Current site name Pinson Mine
Alternate or previous names Ogee Pinson Mini
Related records 10149740, 10310313

Geographic coordinates

Geographic coordinates: -117.26902, 41.12989 (WGS84)
Elevation 1661
Relative position 38 MILES NE OF WINNEMUCCA

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Adam Peak(quadrangle 1:24,000 scale)

Osgood Mountains(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(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 Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 038N 042E 32 Nevada

Comments on the location information

  • N 1/2 SEC. 32; S. SIDE OF GRANITE CREEK

Commodities

Commodity Importance
Gold Primary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Cordierite Gangue
Fluorite Gangue

Analytical data

Result SURFACE GEOCHEMICAL SAMPLING SHOWED AN ASSOCIATION OF ANOMALOUS HG, AS, SB, AS WELL AS F AND BA WITH GOLD MINERALIZATION, AS IS TYPICAL OF MOST CARLIN-TYPE DEPOSITS.

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 > Mafic Intrusive Rock > Diorite
    Rock unit name Osgood Mtns. Stock
    Rock description Osgood Mtns. Stock
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Comus Formation
    Rock description Comus Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -117.26902, 41.12989
ListMap

Economic information

Ore body information

  • General form IRREGULAR IN FAULT ZONE

Controls for ore emplacement

  • Fault Zone (Maybe S. Extension Of Getchell Fault)

Comments on the geologic information

  • GEOL.COM: IRREGULAR ZONES OF LOW-GRADE GOLD ORE ALONG BEDDING PLANES AND MINOR FRACTURES IN ARGILLITE IN FOOTWALK . A CONSPICUOUS CONTACT METAMORPHIC AUREOLE SURROUNDS THE GRANODIORITE STOCK, EXTENDING IRREGULARLY UP TO 10000 FT OUT FROM THE MARGINS OF THE INTRUSIVE. A NUMBER OF TUNGSTEN-BEARING TACTITE DEPOSITS RIM THE GRANODIORITE, FORMING WHEREVER A CALCAREOUS BED WAS PRESENT WITHIN THE CONTACT ZONE. THE PINSON MINE ALSO LIES WITHIN THIS CONTACT AUREOLE, WITH GRANODIORITE OUTCROPPING 1200 FT N OF THE MINE.. A CONSPICUOUS CONTACT METAMORPHIC AUREOLE SURROUNDS THE GRANODIORITE STOCK, EXTENDING IRREGULARLY UP TO 10000 FT OUT FROM THE MARGINS OF THE INTRUSIVE. A NUMBER OF TUNGSTEN-BEARING TACTITE DEPOSITS RIM THE GRANODIORITE, FORMING WHEREVER A CALCAREOUS BED WAS PRESENT WITHIN THE CONTACT ZONE. THE PINSON MINE ALSO LIES WITHIN THIS CONTACT AUREOLE, WITH GRANODIORITE OUTCROPPING 1200 FT N OF THE MINE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1945
Discoverer Clovis Pinson
Year of first production 1949

Mining district

District name Potosi District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner-Operator
    Owner Pinson Mining Co., H. Dan Harper, General Manager
    Home office P. O. Box 192, Winnemucca, Nv 89445
    First year 1983

Production statistics

  • Year 1949
    Period 1949
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^0.186 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 5g/mt

Comments on the production information

  • 1949 PRODUCTION=4150 TONS ORE AT 0.186 OZ/TON, BUT RECENT PRODUCTION IS UNKNOWN.

Reserves and resources

  • Type Leaching
    Estimate year 1987
    Total resources 816000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.79 g/mt Gold Major 1987
  • Type Milling
    Estimate year 1987
    Total resources 1995000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.541 g/mt Gold Major 1987

Comments on the reserve resource information

  • MINE WAS REPORTED IN 1987 TO BE MINING 13000 TPD, EMPLOYING 140 PEOPLE IN ALL OPERATIONS WITH TOTAL OF 56,000 OZ AU PRODUCED EACH YEAR.

Comments on development

  • NEW PINSON DEPOSIT DESCOVERED IN 1971 BY LIVERMORE AND GALLI. KNOWN RESERVES (1979)=1.5 MILLION TONS PLUS MORE LOWGRADE OR. OWNED AND OPERATED IN 1981 BY CORDILLERAN EXPLORATION (CORDEX). LISTED AS AN ACTIVE OPEN PIT MINE AND MILL WITH CYANIDATION OPERATION IN 1983, EMPLOYING A TOTAL OF 130 PERSONS.. OWNED AND OPERATED IN 1981 BY CORDILLERAN EXPLORATION (CORDEX). LISTED AS AN ACTIVE OPEN PIT MINE AND MILL WITH CYANIDATION OPERATION IN 1983, EMPLOYING A TOTAL OF 130 PERSONS.

Reference information

Bibliographic references

  • Deposit

    WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEV; NEV. BUREAU OF MINES BULL. 59.

  • Deposit

    HOTZ, P.E., AND WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF THE OSGOOD MOUNTAINS QUADRANGLE HUMBOLDT COUNTY, NEV; U.S.G.S. PROF. PAPER 431.

  • Deposit

    NEV. MINING ASSOC. BULL., SEPT. 1979; "CONSORTIUM BUDGETS $14 MILLION TO OPEN PINSON GOLD MINE."

  • Deposit

    THE NORTHERN MINER NEWSPAPER, 1980 (NOV.20), RAYROCK PREPARES PINSON FOR JANUARY SET-UP.

  • Deposit

    NVEADA STATE INSPECTOR OF MINES, 1981, DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURIN 1980.

  • Deposit

    POWERS, S.L., 1978, MS THESIS, UNR, RENO, NV.

  • Deposit

    GEOLOGIC SOCIETY OF NEVADA, 1984 MEETING AND FIELD TRIP ROAD LOG PINSON MINE, FLORIDA CANYON DEPOSIT, ROCHESTER DISTRICT, RELIEF CANYON DEPOSIT, SEPT. 21023, 1984. (CONTAINS NUMEROUS OTHER UNPUBLISHED REFERENCES)

  • Deposit

    BONHAM, H.F., 1986, NBMG MAP 91.

  • Deposit

    BONHAM, H.F., 1988, IN NBMG MI-1987.

  • Deposit

    NBMG, 1994, MI-1993

  • Deposit

    NEVADA DIVISION OF MINERALS, 1994

  • Production

    HOTZ, P.E. AND WILLDEN, 1964 MI-1993

  • Reserve-Resource

    GEOL. SOC. NEV., 1987 PRECIOUS METALS SYMPOSIUM. MI-1993

General comments

Subject category Comment text
Deposit A 1984 REPORT DESCRIBES THE DEPOSIT: THE PINSON "A" ZONE IS 1000 FT LONG BY 60 FT THICK CONTAINING 1500000 TONS OF ORE AVERAGING 0.18 OZ/T AU, COVERED BY 10-50 FT OF ALLUVIUM. FURTHER DRILLING INDICATED 1700000 TONS AVERAGING 0.15 OZ/T AU PLUS AN ADDITIONAL TONNAGE OF LOW-GRADE IN THE B ZONE IN THE VICINITY OF THE OLD PIT. A MAJOR NE-STRIKING FAULT ZONE 50-70 FT WIDE, DIPPING 40-50 SE CONTROLS GOLD MINERALIZATION. IT HAS BEEN TRACED BY DRILLING FOR 8000 FT. THE "A" OREBODY IS LOCALIZED BY THIS SHEAR ZONE WHERE IT COINCIDES WITH THE CONTACT BETWEEN THE PREBLE AND COMUS FORMATIONS. IT CONSISTS OF FINE DISSEMINATIONS IN JASPEROID.
Deposit ORIGINAL CLAIMS STAKED BY CLOVIS PINSON IN 1945, HELD IN FAMILY THROUGH 1979. MINED IN 1949 BY OPEN PIT METHODS. THE PINSON DEPOSTI WAS DISCOVERED ON LEASED CLAIMS IN 1971 BY LIVERMORE AND GALLI. (CORDEX). THE PINSON WAS TO BE PUT IN PRODUCTION IN 1980 THE PROJECT CONSISTING OF AN OPEN PIT MINE, AND CONVENTIONAL GOLD MILL WHICH WILL PROCESS APPROX. 300,000 TONS ORE PER YEAR. PRESENT (1979) KNOWN RESERVES OF MEDIUM GRADE ORE ARE SUFFICENT FOR FIVE YEARS' OPERATIONS, WITH ADDITIONAL RESERVES OF LOW-GRADE TO EXTEND MINE LIFE TO 10 YR OR MORE IN 1980, WORK WAS BEING DONE ON A HEAD. LEACH OPERATION WHICH WOULD RECOVER GOLD FROM 3,000, 000 TONS ORE TO A LOW-GRADE FOR MILLING. LISTED AS AN ACTIVE OPEN PIT MINE AND CYANIDIZATION PLANT IN 1980, EMPLOYING ABOUT 80 PERSONS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1981 La Pointe, D. D. Nevada Bureau of Mines and Geology
Updater 01-NOV-1988 La Pointe, D.D. Nevada Bureau of Mines and Geology
Updater 01-SEP-1994 Li, Zhiping (Moyer, Lorre A.) U.S. Geological Survey

Beyond USGS

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

External references

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.