Hancock

Past Producer in Lander county in Nevada, United States with commodity Iron
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10044854
MRDS ID M232470
Record type Site
Current site name Hancock
Alternate or previous names Mickey

Geographic coordinates

Geographic coordinates: -117.20538, 40.29657 (WGS84)

Site location context

Political divisions (FIPS codes)

Lander(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McCoy(quadrangle 1:24,000 scale)

Fish Creek Mountains(quadrangle 1:100,000 scale)

Winnemucca(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Reese(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 Lander

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 028N 042E 13,11 Nevada

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore
Apatite Gangue
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Osobb Formation
    Rock description Osobb Formation

Nearby scientific data

(1) -117.20538, 40.29657

Economic information

Geologic structures

Type of structure Local
Structure description The Deposit Is At The Base Of The Osobb Near The Contact With The Underlying Cane Spring Limestone. A. Diorite Stock Intrudes And Has Locally Pyrometasomatized The Cane Spring About One Mile To The North.

Ore body information

  • General form STRATABOUND

Controls for ore emplacement

  • Intersection Of Fault Zones & Dolomite Beds

Comments on the geologic information

  • THE IRON ORE OCCURS AS IRREGULAR MASSES AND BANDS REPLACING DOLOMITE BEDS IN THE OSOBB FORMATION. THE OREBODIES APPEAR TO BE LOCALIZED ALONG MINERALIZED FAULTS AND SHEAR ZONES THAT INTERSECT NEARBY INTRUSIVE BODIES OF DIORITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mccoy

Reference information

Bibliographic references

  • Deposit

    STAGER, H.K. (1977) GEOLOGY AND MINERAL RESOURCES OF LANDER CO., N.B.M. BULL 88

  • Deposit

    USBM (WINNEMUCCA) MILS NO. 69, REFERENCE NO 3201500201

  • Deposit

    MCKEE E.H. & STEWART J. (1968) GEOLOGIC MAP OF THE MCCOY QUADRANGLE, USGS OPEN-FILE MAP

  • Production

    STAGER, H.K., 1977.

General comments

Subject category Comment text
Deposit IRON ORE OCCURS AS IRREGULAR MASSES AND BANDS REPLACING DOLOMITE BEDS IN THE OSOBB FORMATION
Deposit TOTAL PRODUCTION IS SLIGHTLY MORE THAN 20,000 LONG TONS AVERAGING 60% FE. THE ORE BODY STRIKES NW AND DIPS GENTLY SW IN THICK BEDDED DOLOMITE ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1980 Kirkham, Richard A. Nevada Bureau of Mines and Geology

Beyond USGS

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

External references

Authoritative Nevada resources

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