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Pioneer Mills Mine-East Shaft

Producer in Cabarrus county in North Carolina, United States with commodities Gold, Copper, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  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. 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 10071251
MRDS ID W014532
Record type Site
Current site name Pioneer Mills Mine-East Shaft
Related records 10175672

Geographic coordinates

Geographic coordinates: -80.58286, 35.26121 (WGS84)

Site location context

Political divisions (FIPS codes)

Cabarrus(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Concord SE(quadrangle 1:24,000 scale)

Charlotte(quadrangle 1:100,000 scale)

Charlotte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rocky(hydrologic unit)

Upper Pee Dee(hydrologic accounting unit)

Pee Dee(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Geographic areas

Country State County
United States North Carolina Cabarrus

Commodities

Commodity Importance
Gold Primary
Copper Primary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Gold Ore
Molybdenite Ore
Pyrite Ore
Ankerite Gangue
Quartz Gangue

Alteration

  • (Local) Epidote, Chlorite

Analytical data

Result 80 FOOT CHANNEL SAMPLE ON THE 130 LEVEL AMPLED AT 5 FOOT INTERVALS, AVERAGED 0.09 OPT AU. ORE ZONE WAS .6 M WIDE. 20 FEET AVERAGED 0.32 OPT AU

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -80.58286, 35.26121
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ene-Trending Shear Zones

Ore body information

  • General form TABULAR
    Strike N 80 E
    Dip 80 NW
    Length 235M
    Width 1M
    Depth to bottom 45M

Controls for ore emplacement

  • Quartz Veins In Small Shear Zones

Comments on the geologic information

  • SOME MAFIC VOLCANIC MATERIAL FOUND JUST EAST OF DUMPS. MINE IS APPARENTLY NEAR CONTACT OF DIORITE AND MAFIC VOLCANIC ROCKS.u QUARTZ DIORITE IS VERY MAGNETIC.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1844
Year of first production 1844
Year of last production 1857

Mining district

District name Charlotte Belt

Production statistics

  • Year 1850
    Period 1844-1850'S
    Material AU
    Accuracy Estimate
    Description Cp_Grade: ^0.2 Opt Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 6g/mt

Comments on the production information

  • CALCULATED FROM UNDERGROUND OBSERVATIONS OF STOPE SIZE AND SYSTEMATIC SAMPLING OF THE VEIN.

Workings at the site

  • Type of workings Underground
    Overall depth 45M
    Overall length 195.68M

Comments on the workings information

  • SHAFT AND INCLINE (BELOW 15 M) HAVE DRIFTS AT THE 30 AND 40 M LEVELS. SEE ALSO PIONEER MILLS MINE-WEST SHAFT TO WEST.

Comments on development

  • WEST SHAFT 500M TO THE WEST

Reference information

Bibliographic references

  • Analytical Data

    PARDEE AND PARK, 1948.

  • Deposit

    CARPENTER, III, P. ALBERT, 1976, "METALLIC MINERAL DEPOSITS OF THE CAROLINA SLATE BELT, NORTH CAROLINA", N. C. DEPT. OF NATURAL AND ECONOMIC RESOURCES, MINERAL RESOURCE SECTION, BULL. 84, MAP AT 1:165,000 PG. 27, MINE TEXT PG 33, TEXT 200 PG.; MINE SITE IN CONCORDE SE TOPO QUAD AT 1:24,000; PARDEE, J.T., AND PARK, C.F., 1948, GOLD DEPOSITS OF THE SOUTHERN PIEDMONT: USGS PROFESSIONAL PAPER 213

  • Production

    BROWN, C.B., 1934, FIELD NOTES

General comments

Subject category Comment text
Deposit SHEAR ZONE FLATTENS TO 50 DEG DIP AT THE 130 FOOT LEVEL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1976 D'Agostino, John P. U.S. Geological Survey
Updater 01-JUN-1991 Klein, T.L. 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