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Delamar Mine

Producer in Lincoln county in Nevada, United States with commodities Gold, Silver, Copper
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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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10072155
MRDS ID W016455
Record type Site
Current site name Delamar Mine
Alternate or previous names Lucky Bar, Jim Crow, Monitor, Monitor No. 2 Claims, Hog Pen, Gold Cup, NBMG Sample Sites 1749, 1750
Related records 10295663

Geographic coordinates

Geographic coordinates: -114.76667, 37.45969 (WGS84)
Relative position ON THE RIDGE ABOVE THE TOWN OF DELAMAR

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

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Tertiary

Comments on the commodity information

  • A TELLURIDE(?) FREE GOLD.

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Gold Ore
Malachite Ore
Tetrahedrite Ore
Pyrite Gangue
Quartz Gangue

Analytical data

Result DATA FROM THE CHERTY QUARTZ VEINS: AUG 1932, 42.63 TONS DRY WEIGHT, 3.06 OZ/TON AU, .8 OZ/TON AG
Result OCT 1932, 48.20 TONS DRY WEIGHT, 1.96 OZ/TON AU, .7 OZ/TON AG
Result MARCH 1933, 35.00 TONS DRY WEIGHT, 2.9 OZ/TON AU, 1.1 OZ/TON AG. ALL THE STOPES HAD ASSAY LIMITS. GRADES WENT FROM BARREN ROCK TO 30 OZ AU/TON 300 ASSAYS FROM THE HOG PEN SHOOT AVERAGED $15.26/TN
Result 4600 TN OF ORE YIELDED $15.61/TON (1906)
Result SHOOT 2 ASSAYED $11.27/TON (1902)
Result SHOOT 3 YIELDED UP TO $188/TON (1902) . SAMPLES 1749 AND 1750 CONTAIN, RESPECTIVELY: 5 AND 0.5% FE, 300 AND 200 PPM MN, 10 AND 50 PPM AG, 500 AND 0 PPM AU, 500 PPM BA, 70 AND 1000 PPM CU, 150 AND 50 PPM PB, 0 AND 200 PPM SB, 10 AND 100 PPM SN, 200 AND 0 PPM ZN, 200 PPM ZR. . SAMPLES 1749 AND 1750 CONTAIN, RESPECTIVELY: 5 AND 0.5% FE, 300 AND 200 PPM MN, 10 AND 50 PPM AG, 500 AND 0 PPM AU, 500 PPM BA, 70 AND 1000 PPM CU, 150 AND 50 PPM PB, 0 AND 200 PPM SB, 10 AND 100 PPM SN, 200 AND 0 PPM ZN, 200 PPM ZR.

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Early Cambrian
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Prospect Mountain Quartzite
    Rock description Prospect Mountain Quartzite

Nearby scientific data

(1) -114.76667, 37.45969
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Abundant Normal Faults

Ore body information

  • Strike N18E
    Dip AVG 76 NW STEEPENING TO AVG 82NW WITH DEPTH

Controls for ore emplacement

  • Brecciation Due To The Faulting, Rhyolite And Black Dikes

Comments on the geologic information

  • ORE IS FOUND IN THE DELAMAR OR MONITOR VEIN, EXTENDING 2700 FEET, WITH 5 MAIN ORE SHOOTS. DISTRIBUTION OF THE ORE SHOOTS FOUND IN CALLAGHAN, 1937 FIGURE 11. THICKNESS VARIES UP TO 300 FEET. MATERIAL OF ALL GRADES FOUND IN THE SHOOTS; GRADE DECREASED RAPIDLY BELOW LEVEL 10. THE ORE CONSISTS CHIEFLY OF A BRECCIA CEMENTED BY CHERTY QUARTZ, ALSO FOUND IN CHERTY QUARTZ VEINS AND ALONG BEDDING PLANES AND FRACTURES. MOST WAS OXIDIZED, WITH A REDDISH OR GREENISH TINT. ONLY THE HOG PEN ORE SHOOT CONTAINED FREE GOLD

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1891
Discoverer James Mcfadden, D.A. Meikel And John Purtscher

Mining district

District name Delamar (Ferguson) District District

Land status

Ownership category Private

Comments on the production information

  • PRODUCTION IN 1894 BY JIM CROW MINING CO; IN 1895-1902 BY DELAMAR NEVADA GOLD MINING CO; IN 1903-1909 BY BAMBERGER DELAMAR GOLD MINING CO; AND IN 1932-35 BY THE CALIENTE CYANIDING CO, FROM TAILINGS.

Comments on the reserve resource information

  • ONLY VERY LOW GRADE MATERIAL PROBABLY REMAINS IN THE MINE. HOWEVER, CAREFUL ASSAY OF THE ACCESSIBLE BRECCIA MAY REVEAL MINABLE BODIES. MOST FAVORABLE AREA FOR FURTHER PROSPECTING WOULD BE IN THE FOOTWALL BETWEEN THE DELAMAR AND APRIL FOOL VEINS.

Workings at the site

  • Type of workings Underground
    Length 56325.5M
    Overall depth 413.61M

Comments on the workings information

  • MOST OF THE WORKINGS ARE NOW INACCESSIBLE. MAP OF ACCESSIBLE WORKINGS ON HOG PEN SHOOT AND ON LEVEL 10 AVAILABLE IN CALLAGHAN, 1937. THERE WERE 16 LEVELS ORIGINALLY

Comments on development

  • CAPTAIN DE LA MAR PURCHASED CLAIMS IN 1893 AND BEGAN THE ACTIVE DEVELOPMENT THAT MADE THE DISTRICT THE MAIN GOLD PRODUCER OF NEVADA JUST AFTER 1894. DELAMAR MINE REMAINED NEVADA'S BIGGEST GOLD PRODUCER UNTIL 1900, SHUT DOWN IN 1909. FIRST ORE WAS DISCOVERED BY A GROUP OF ITALIANS HEADED BY JOHN VIETTI WORKING ON A LEASE. LUCKY BAR CLAIM, LOCATED BY JOHN ROEDER, GOLDCUP CLAIM LOCATED BY JOE CONWAY, JOHN ROEDER AND CAP GARDEN. MINE OPERATED UNDER BAMBERGERS FROM 1902 TO 1909, BUT SHUT DOWN UNTIL 1932 EXCEPT FOR CLEANUPS IN 1911, 1912, 1913 AND 1926. IN 1931, THE CALIENTE CYANIDING CO WAS PREPARING TO TREAT TAILINGS FROM THE DELAMAR MILL. THE JACK BERRY LEASE ON THE LUCKY BAR (HOG PEN) CLAIM PRODUCED CONSIDERABLE SHIPPING ORE. DUMPS HAD BEEN TRENCHED AND SAMPLED WITHIN PAST FEW YEARS (AS OF 1983).

Reference information

Bibliographic references

  • Deposit

    CALLAGHAN, E., 1937, GEOLOGY OF THE DELMAR DISTRICT, LINCOLN CO, NEV. NEVADA BUR OF MINES VOL 31, NO. 5 P. 50-58

  • Deposit

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

  • Deposit

    EMMONS, S.F., 1902, AIME TRANS, VOL 31, P. 658-683.

  • Deposit

    LINCOLN, F. C., 1923, MINING DISTRICTS AND MINERAL RESOURCES OF NEVADA: NEVADA NEWSLETTER PUB CO; RENO, NV.

  • Deposit

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

  • Deposit

    NBMG DISTRICT FILE 167, ITEMS 6 AND 7, POTENTIAL NATIONAL HISTORICAL REGISTER SITE REPORT.

  • Deposit

    GODBE, W.S., 1894, ENG. & MIN JOUR, VOL 57, P. 106.

  • Deposit

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

  • Production

    CALLAGHAN, 1937

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.