1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Jumbo Mine

Past Producer in Lincoln county in Nevada, United States with commodities Gold, Silver, Lead, Zinc, Copper, Barium-Barite
Map
XML
JSON
KML
B
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. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10037388
MRDS ID M032092
Record type Site
Current site name Jumbo Mine
Alternate or previous names Horn, Probably Same As Blue Jay Claims, NBMG Sample Site 1754.
Related records 10271440

Geographic coordinates

Geographic coordinates: -114.76223, 37.45941 (WGS84)
Elevation 1890

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Delamar(quadrangle 1:24,000 scale)

Clover Mountains(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Dry Lake Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
06S 64E 01 Nevada

Comments on the location information

  • ON SOUTH SIDE OF THE WASH ; INFO FROM LAND.ST :(1982) (1982)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Secondary
Zinc Critical Secondary
Copper Secondary
Barium-Barite Critical Tertiary

Materials information

Materials Type of material
Barite Ore
Cerargyrite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Tetrahedrite Ore
Pyrite Gangue

Analytical data

Result SHIPMENTS FROM HORN LEASE: IN 1932, FROM 140.37 TONS (DRY WEIGHT), AVERAGE YIELD WAS 6.58 OZ/TON AU, 13.19 OZ/TON AG. IN 1933, FROM 94.47 TONS, 4.37 OZ/TON AU, 9.11 OZ/TON AG. 1934, FROM 294.09 TONS, 1.55 OZ/TON AU, 3.156 OZ/TON AG. 1935, FROM 292.93 TONS, .992 OZ/TON AU, AND 3.31 OZ/TON AG. SAMPLE 1754 CONTAINS 10 PPM AG, 1000 PPM BA, 100 PPM BI, 150 PPM CU, 150 PPM PB, 100 PPM ZR. SAMPLE 1754 CONTAINS 10 PPM AG, 1000 PPM BA, 100 PPM BI, 150 PPM CU, 150 PPM PB, 100 PPM ZR.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Early Cambrian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -114.76223, 37.45941
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Abundant Normal Faults
Type of structure Local
Structure description Postmineral Fractures

Ore body information

  • General form TABULAR
    Strike N 15 W
    Dip 68 W
    Thickness 1.52M
    Length 457.2M
    Width 0.15M
    Depth to top 23.77M

Comments on the geologic information

  • ORE IS IN CHERTY QUARTZ VEIN 6 INCHES WIDE AND NARROW QUARTZ STRINGERS. ORE SHOOT WAS 90 FEET LONG IN THE TUNNEL AND THEN PITCHES NORTH. THE NORTHERN PART OF THE VEIN TERMINATED AGAINST A GROUP OF FRACTURES CONTAINING EAST WEST DIKES. A SECOND ORE VEIN HAS BEARING N 22 E, 63 W. HORN SILVER WAS FOUND ON FRACTURE SURFACES.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1892

Mining district

District name Delamar (Ferguson) District District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Mrs. Agnes Horn
    Home office Delamar
    First year 1930

Production statistics

  • Year 1935
    Period 1932-1935
    Material ORE AU AG
    Accuracy Accurate
    Description Cp_Grade: ^Average Grade Au 2.83 Oz/Ton Ag 6.15 Oz/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 174g/mt
    Major Ore Gold Gold 80g/mt

Comments on the reserve resource information

  • THE SURFACE EXPOSURES AND UNDERGROUND WORKINGS SHOW EXTENSIVE BRECCIATION AND MINERALIZATION, AND CALLAGHAN SUGGESTS THAT THE CLAIM WARRANTS MORE EXTENSIVE PROSPECTING AND DEVELOPMENT THAN IT HAD RECEIVED BY 1937

Workings at the site

  • Type of workings Underground
    Length 140.21M
    Overall depth 33.83M

Comments on the workings information

  • PRODUCTIVE VEIN EXPLORED ON 3 CLOSELY SPACED LEVELS. WINZE, SMALL STOPE. WINZE, SMALL STOPE.

Comments on development

  • NO ACTIVITY AT TIME OF EXAMINATION IN 1983.

Reference information

Bibliographic references

  • Deposit

    CALLAGHAN, E., 1937, GEOLOGY OF THE DELAMAR DISTRICT, LINCOLN CO, NEV. NEV BUREAU OF MINES V. 31 NO. 5 P. 60-64

  • Deposit

    TSCHANZ, C.M. AND PAMPEYAN, E.H., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN CO., NEV. NEV. BUR MINES BULL 73, P. 141

  • Deposit

    SMITH, A.M. AND CARPENTER, J., 1931, NOTES FROM INSPECTION TRIP: NBMG DISTRICT FILE 167, ITEM 3.

  • Deposit

    NBMG DISTRICT FILE 167, ITEM 5.

  • Deposit

    BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, SEPT 30, 1983.

  • Production

    CALLAGHAN, 1937

General comments

Subject category Comment text
Deposit VEIN PARALLELS THE APRIL FOOL VEIN. STOPES AND SHAFTS EXPLORE THE N20E, 70 NW QUARTZ VEIN IN THE QUARTZITES. THE VEIN CONSISTS OF QUARTZ-CEMENTED QUARTZITE BRECCIA. THE FOOTWALL OF THE VEIN FORMS A BOLD RESISTANT OUTCROP TRACEABLE FOR 1000 TO 1500 FT. THE SHEAR (SIC) ROCK FACE IS SILICIFIED AND IRON STAINED AND SHOWS QUARTZ VEINS AND QUARTZ-CEMENTED BRECCIA ZONES WHICH CONTAIN ANGULAR FRAGMENTS OF QUARTZITE. THE MINED PORTION OF THE BRECCIA ZONE HAS A RUBBLY OR BOULDERY APPEARANCE. BRECCIA ZONE APPEARS TO BE TRUNCATED AT N END BY A FAULT RUNNING UP DELAMAR CANYON. DUMP ROCK CONSISTS MAINLY OF QUARTZITE AND QUARTZ VEIN MATERIAL, BUT SOME SILTSTONE IS ALSO PRESENT. WHITE COMB AND PRISMATIC QUARTZ ENCRUST QUARTZITE AND MICACEOUS GREEN SILTSTONE FRAGMENTS. THE BRECCIA SHOWS OPEN (EUHEDRAL) QUARTZ-FILLED VUGS BETWEEN FRAGMENTS. SOME VUGS ARE FILLED WITH CLAY AND IRON OXIDES. SOME VEIN MATERIAL CONTAINS MINOR PYRITE, CHALCOPYRITE, COPPER OXIDES, TETRAHEDRITE ?, WHITE BARITE (ROCKS VERY
Deposit DENSE) AND GOSSANY PORTIONS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Harner, Joy L. (Roberts, Ralph J.) U.S. Geological Survey
Updater 01-AUG-1984 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.

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.