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  3. Mineral Resource Data System (MRDS)

Last Chance Property

Occurrence in Humboldt county in Nevada, United States with commodity 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. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10045000
MRDS ID M232651
Record type Site
Current site name Last Chance Property
Alternate or previous names Golden Tungsten Property

Geographic coordinates

Geographic coordinates: -118.69879, 41.84793 (WGS84)
Elevation 1442
Relative position 11 MILES S. OF DENIO BY ROAD (UNSURVEYED AREA)

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Vicksburg Canyon(quadrangle 1:24,000 scale)

Denio(quadrangle 1:100,000 scale)

Vya(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Thousand-Virgin(hydrologic unit)

Black Rock Desert(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 046N 29E 24 Nevada

Comments on the location information

  • A MILE S. OF DEFENSE MINE ALONG W. SIDE OF RANGE

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Garnet Gangue
Pegmatite Gangue

Analytical data

Result SOME SAMPLES AVERAGE 0.2 % WO3
Result SOME UP TO 0.5 % WO3.

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Pine Forest Intrusive Mass
    Rock description Pine Forest Intrusive Mass
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -118.69879, 41.84793
ListMap

Economic information

Ore body information

  • General form IRREGULAR (CONTACT ZONE)
    Length 609.6M
    Width 0.91M

Controls for ore emplacement

  • Granodiorite Contact: Tactite Zone; Shear Zone

Comments on the geologic information

  • SEVERAL SCHEELITE-BEARING TACTITE BODIES NONE OF WHICH IS WIDER THAN 2 FEET. SCHEELITE OCCURS IN THIN BANDS OF GARNET TACTITE FORMED ALONG THE WESTERN MARGIN OF THE LARGE PINE FOREST INTRUSIVE MASS. SMALL PODS OF MINERALIZED TACTITE OCCUR ALONG THE CONTACT. THE LARGEST MINERALIZED TACTITE POD IS 3 FT THICK.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1944

Mining district

District name Warm Springs (Vicksburg) District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Merrill, Herb
    First year 1976

Comments on the production information

  • A FEW 10'S OF TONS OF LOW-GRADE ORE ARE PRESENT

Comments on the workings information

  • PITS, SHAFTS, ADITS, 5 SHALLOW TRENCHES AND PROSPECT PITS EXPOSE CONTACT FOR ABOUT 2000 FT.

Comments on development

  • ONLY KNOWN PRODUCTION WAS 11 TONS OF ORE, AVERAGING 0.58 % WO3 SHIPPED TO METALS RESERVE CO. IN 1943 BY THEN OWNERS M.A. JENSEN AND J.S. ALEXANDER.

Reference information

Bibliographic references

  • Deposit

    WILLDEN, R., 1964; GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEVADA; NBMG, BULL. 59.

  • Deposit

    TINGLEY, J.V., 1976, UNPUBLISHED REPORT ON THE GOLDEN TUNGSTEN PROPERTY, VICKSBURG DISTRICT: ON FILE AT NBMG.

  • Deposit

    STAGER, H.G. AND TINGLEY, J.V., IN PREPARATION, NBMG BULL ON TUNGSTEN DEPOSITS OF NEVADA.

General comments

Subject category Comment text
Deposit SCHEELITE OCCURS IN THIN BEDS OF GARNET TACTITE, 1.5-3 FT WIDE, ALONG THE WESTERN MARGIN OF THE PINE FOREST INTRUSIVE. THE GRANODIORITE UNDERLIES THE ENTIRE CLAIM AREA AND THE TACTITE BODIES ARE PENDANTS THAT PROBABLY DO NOT EXTEND DOWN DIP MORE THAN 15 FT. THE SCHEELITE IS FINE-GRAINED AND FLUORESCES A GOLDEN YELLOW. SOME SMALL PODS OF TACTITE MAY CONTAIN ABOUT 0.5 % WO3, BUT MOST OF IT IS BARREN.
Deposit OWNED BY M.A. JENSEN AND J.S. ALEXANDER, IN 1944, AND BY HERB MERRILL IN 1976. IT CONSISTS OF 3 LODE CLAIMS. SMALL PROSPECT PITS, SHAFTS, AND ADITS EXPOSE THE CONTACT ZONE FOR ABOUT 2000 FT. OF ITS LENGTH. A 1976 REPORT CONCLUDES THAT THE PROSPECT YIELD NO MORE THAN A FEW TENS OF TONS OF LOW-GRADE ORE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1981 La Pointe, D.D. Nevada Bureau of Mines and Geology
Updater 01-MAY-1987 La Pointe, D.D. 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.