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Unnamed Copper Prospect

Past Producer in Humboldt county in Nevada, United States with commodities Copper, Manganese, Barium-Barite, Silver
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Geologic information

Identification information

Deposit ID 10047300
MRDS ID M242581
Record type Site
Current site name Unnamed Copper Prospect
Alternate or previous names NBMG Sample Site 493

Geographic coordinates

Geographic coordinates: -117.40235, 40.89795 (WGS84)
Elevation 1701
Relative position ABOUT 1.65 AIR MILES S 15 W FROM GOLCONDA SUMMIT ON U.S. 80
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Geographic areas

Country State County
United States Nevada Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 035N 041E 19 NE OF NW OF NE Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Copper Primary
Manganese Tertiary
Barium-Barite Tertiary
Silver Tertiary

Materials information

Materials Type of material
Barite Ore
Malachite Ore
Limonite Gangue
Quartz Gangue

Analytical data

Result SAMPLE 493, OF VEIN MATTER AND GOSSAN FROM LARGEST OPEN CUT, CONTAINS 10% FE, 0.5% MG, 0.1% CA, 1% TI, 5000 PPM MN, 10 PPM AG, 100 PM B, +5000 PPM BA, 30 PPM CO, 200 PPM CR, 20000 PPM CU, 10 PPM NO, 20 PPM NI, 700 PPM PB, 15 PPM SC, 20 PPM SN, 100 PPM SR, 200 PPM V, 10 PPM Y, 100 PPM ZR.

Mineral occurrence model information

Model code 129
USGS model code 40a
Deposit model name Detachment-fault-related polymetallic Cu-Au-Ag-Pb-Zn deposits

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert
    Rock unit name Havallah;Pumpernickel
    Rock description Havallah;Pumpernickel

Nearby scientific data

(1) -117.40235, 40.89795
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Geologic structures

Type of structure Local
Structure description Faults

Ore body information

  • General form TABULAR

Controls for ore emplacement

  • Thrust Fault

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both metallic and non-metallic
Deposit size Small
Significant No

Mining district

District name Golconda District

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • SEVERAL OPEN CUTS UP TO 10 X 10 M; SEVERAL SHORT ADITS, BULLDOZER CUTS.

Comments on development

  • NO ACTIVITY IN 1984. PROBABLY VERY MINOR PRODUCTION?

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M242581

Bibliographic references

  • Deposit

    GARSIDE, L.J., 1984. NBMG FIELD EXAMINATION, 20 JUNE 1984, AND SAMPLE ANALYSIS.

  • Deposit

    USGS, 1974, MAP G0-1174

General comments

Subject category Comment text
Deposit DRUSY AND MASSIVE QUARTZ VEIN MATTER OCCURS ALONG A PROBABLE THRUST FAULT WHICH SEPARATES (IN GENERAL) HANGING WALL BLACK CHERT FROM FOOTWALL GREENSTONE. FAULT APPEAR TO ENCIRCLE ALMOST COMPLETELY AN INLIER OF LOWER PLATE. DIP OF THE FAULT VARIES FROM 25 TO 50 DEGREES. AT A WESTERN PIT, A HIGH-ANGLE (LATER?) CROSS-CUTTING FAULT (N 40 W, 80 SW) ALSO IS MINERALIZED. VEIN MATERIAL IS ENTIRELY OXIDIZED, AS ELSEWHERE IN THE DISTRICT. MALACHITE, COPPER PITCH, AND LIMONITE GOSSAN ARE COMMON. THE FOOTWALL TO THE VEIN IS A LIGHT GRAY GOUGE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1985 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-SEP-1994 Li, Zhiping (Peters, S.) U.S. Geological Survey