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Oro Fino

Past Producer in San Bernardino county in California, United States with commodity Gold
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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. 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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10035787
MRDS ID M023690
Record type Site
Current site name Oro Fino
Related records 10164133

Geographic coordinates

Geographic coordinates: -115.89141, 35.19918 (WGS84)
Elevation 686
Relative position 7 MI. NNW SUMMIT OF OLD DAD MTN.

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Seventeenmile Point(quadrangle 1:24,000 scale)

Ivanpah(quadrangle 1:100,000 scale)

Kingman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mojave(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Mojave National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 013N 010E 23,26 California

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • ORE IS UP TO 75% FREE GOLD

Materials information

Materials Type of material
Quartz Gangue

Analytical data

Result ORE MINEND FROM NE-TRENDING VEIN AVG. $9 AU/TON
Result $50 AU/TON FROM STOPED AREA

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) -115.89141, 35.19918
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ore Bodies Occur In East-Trending Belt, About 1200 Ft. In Length

Ore body information

  • General form LENTICULAR
    Strike E,N60E
    Dip N,30-60NW
    Thickness 3.66M

Controls for ore emplacement

  • Fractures, Fault Zone

Comments on the geologic information

  • FAULTED AND FRACTURED ZONES MAY REPRESENT OFFSET SEGMENTS OF A SINGLE ZONE. DISPLACEMENT OF EACH STEPPED SEGMENT AMOUNTS TO A FEW FEET. QUARTZITE (WEST PART), MICA SCHIST AND DOLOMITE (EAST PART). BASIC DIKES.

Economic information about the deposit and operations

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

Mining district

District name Solo

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND

Workings at the site

  • Type of workings Underground
    Overall depth 30.48M

Comments on the workings information

  • 3 MAIN GROUPS OF WORKINGS, THE WEST, MIDDLE AND EXTENSION (EAST). 2500 FT. OF SHAFTS AND TUNNELS. PROSPECTED ALONG LENGTH OF ITS OUTCROP FOR 1500 FT. TUNNEL DRIVEN ON CROSS FRACTURE N25E 175 FT. TO MAIN VEIN, THEN 150 FT. N60E. THIS WORK EXPOSED ON ORE SHOOT 150 FT. LONG, AVG. 7 FT. THICK. RAISE APUT UP 87 FT. TO SURFACE 260 FT. FROM PORTAL. NUMEROUS CUTS AND SHALLOW SHAFTS FOR 1300 FT. NE ALONG TUNNEL. 1300 FT. NE OF MAIN TUNNEL IS A SHAFT 65 FT. DEEP, THERE IS A STOPE ON THE 30 FT. LEVEL, 60 FT. LONG, 6 FT. THICK, AND 30 FT. HIGH.

Reference information

Bibliographic references

  • Deposit

    WRIGHT, L.A., AND OTHERS, 1953, MINES AND MINERAL DEPOSITS OF SAN BERNARDINO COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 49, NOS. 1&2, P. 76-77

  • Deposit

    TUCKER, W.B. AND SAMPSON, R.J., 1943, MINERAL RESOURCES, SAN BERNARDINO COUNTY, CALIFORNIA: CALIF. JOUR. MINES & GEOLOGY, V. 39, NO. 4, P. 457.

  • Production

    WRIGHT (1953)

General comments

Subject category Comment text
Deposit SILICEOUS ORE SHOOTS, 4 TO 6 1/2 FT. THICK OCCUR ALONG FAULTED AND FRACTURED ZONES THAT ARE NOW DISCONTINUOUS. ORE SHOOTS COMMONLY BORDERED ON ONE SIDE BY A GOUGE THAT APPEARS TO CONSIST MOSTLY OF PULVERIZED DIKE MATERIAL.
Deposit 4 CLAIMS FIRST PROSPECTED IN 1890'S ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Nelson, Scott C. (Albers, John, P.) 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 California resources

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