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  3. Mineral Resource Data System (MRDS)

Frenchman and Eyraud Claims

Occurrence in Humboldt county in Nevada, United States with commodities Tungsten, Iron, Calcium, Manganese, Barium-Barite, Vanadium, Zinc, Molybdenum, Nickel, Tin, Boron-Borates, REE, Zirconium, Magnesite
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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. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10045082
MRDS ID M232745
Record type Site
Current site name Frenchman and Eyraud Claims
Alternate or previous names Osgood Creek Prospects, Osgood Claims

Geographic coordinates

Geographic coordinates: -117.27207, 41.16211 (WGS84)
Elevation 1905
Relative position 40 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 17,20,18 Nevada

Comments on the location information

  • W 1/2 OF SW 1/4 OF SEC. 17; N 1/2 OF NW 1/4 OF SEC 20. PROPERTY COVERS MOST OF THE CONTACT ZONE BETWEEN THE VALLEY VIEW AND THE KIRBY MINES.

Commodities

Commodity Importance
Tungsten Critical Primary
Iron Tertiary
Calcium Tertiary
Manganese Critical Tertiary
Barium-Barite Critical Tertiary
Vanadium Critical Tertiary
Zinc Critical Tertiary
Molybdenum Tertiary
Nickel Critical Tertiary
Tin Critical Tertiary
Boron-Borates Tertiary
REE Critical Tertiary
Zirconium Critical Tertiary
Magnesite Tertiary

Materials information

Materials Type of material
Scheelite Ore

Analytical data

Result SAMPLE 2610 OF GARNET SKARN WITH FINE-GRAINED SUBHEDRAL TO ANHEDRAL GARNET, CLOTS OF CINNAMON-RED LIMONITE AND SUB-HEDRAL QUARTZ, CONTAINS 15 % FE, 0.5 % MG, 15 % CA, 0.1 % TI, -+5000 PPM MN, 3 PPM AG, 30 PPM B, 1000 PPM BA, 30 PPM CO, 100 -PPM CU, 150 PPM MO, 100 PPM NI, 50 PPM SN, 700 PPM V, 200 PPM -W, 20 PPM Y, 300 PPM ZN, 15 PPM ZR.

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 Osgood Mtns. Stock
    Rock description Osgood Mtns. Stock
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Preble Formation
    Rock description Preble Formation

Nearby scientific data

(1) -117.27207, 41.16211
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Nw-Trending Fault

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Tactite Zone Near Igneous Contact Irregularity

Comments on the geologic information

  • NEAR BY IRREGULARITIES IN THE TREND OF THE GRANODIRITE/LIMESTONE CONTACT.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No
Discovery year 1946
Discoverer Eyraud (?)

Mining district

District name Potosi District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Cordex (Part) And Frm Corp (Part),
    First year 1984

Comments on the workings information

  • CUTS, TRENCHES ALONG CONTACT ZONE.

Comments on development

  • STAKED IN 1920'S, EXPLORED IN 1950'S AND 1970'S; NO PRODUCTION. NO ACTIVITY AT TIME OF EXAMINATION IN 1984.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SMALL TACTITE (SKARN) BODIES FORMED IN CAMBRIAN PREBLE LIMESTONE ON EAST CONTACT OF OSGOOD GRANODIORITE. THE LARGE-ST LENSE OF TACTITE OCCURS ON A SMALL HILL SOUTH OF OSGOOD CRE-EK NEAR THE COMMON SOUTH CORNERS OF SECTION 17 AND 18. HERE TH-E PREBLE SECTION HAS FORMED AN EMBAYMENT IN THE CONTACT; THE L-IMESTONES DIP ABOUT 30NE DOWN THE AXIS OF THE EMBAYMENT.
Deposit TACTITE FLOAT CONTAINING SCHEELITE HAS BEEN FOUND IN THESE AREAS OF IRREGULARITIES IN THE GRANODIRITE/LIMESTONE CONTACT. ; 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-MAR-1986 La Pointe, D.D. (Tingley, J.V.) 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.