Barnhardt Shaft

Producer in Rowan county in North Carolina, United States with commodities Gold, Copper
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 10110449
MRDS ID W014590
Record type Site
Current site name Barnhardt Shaft
Related records 10176413

Geographic coordinates

Geographic coordinates: -80.34507, 35.51093 (WGS84)

Site location context

Political divisions (FIPS codes)

Rowan(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gold Hill(quadrangle 1:24,000 scale)

Salisbury(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 Rowan

Comments on the location information

  • LOCATION APPROX, NEAR PIERSON CREEK AND LOST CREEK.

Commodities

Commodity Importance
Gold Primary
Copper Tertiary

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Gold Ore
Pyrite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Chlorite, Sericite

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 Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Tillery Formation
    Rock description Tillery Formation
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -80.34507, 35.51093

Economic information

Geologic structures

Type of structure Regional
Structure description Gold Hill Fault Zone
Type of structure Local
Structure description Ne-Trending Shears Parallel To And At Acute Angles To Trend Of Fault Zone.

Ore body information

  • General form TABULAR
    Length 133M
    Width 1M
    Depth to bottom 127M

Controls for ore emplacement

  • Filling Small Shears N40e Vertical Dip

Comments on the geologic information

  • IN PHYLLITIC LAMINATED MUDSTONE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1854
Year of first production 1854

Mining district

District name Gold Hill District

Production statistics

  • Year 1915
    Period 1845-1915
    Material CU
    Description Cp_Grade: ^Up To 3% Copper
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 3wt-pct

Comments on the production information

  • PRODUCTION FIGURE FOR BARNHARDT AND OLD FIELD DIGGINGS (WHICH PROBABLY HAD MINOR PRODUCTION)

Workings at the site

  • Type of workings Underground
    Overall depth 144M
    Overall length 64.01M

Comments on the workings information

  • 5 SHAFTS ONE WITH 127M AND 144M LEVELS, TWO TO 100M, 1 TO 33M, 1 TO 27M; ONE SHAFT CONNECTS TO THE MILLER SHAFT AT THE 33 M LEVEL EXTENDING 133M TO INTERSECT IT.

Reference information

Bibliographic references

  • Deposit

    NITZE, H.B.C., 1896, "GOLD DEPOSITS OF NORTH CAROLINA" , NORTH CAROLINA GEOLOGICAL SURVEY BULL. NO. 3, MAP AT 1:15,625 PL. VI, MINE TEXT PG. 85 TO 88, TEXT 200 PG.

  • Deposit

    CARPENTER, III, P.A., 1976, "METALLIC MINERAL DEPOSITS OF THE CAROLINA SLATE BELT, NORTH CAROLINA", N.C. DEPT. NAT. AND ECON. RES., MIN. RES. SECT., BULL. 84, MAP AT 1:31,000 PG. 126, MINE TEXT PG. 125, TEXT 166 PG.; MINE SITE IN GOLD HILL TOPO QUAD AT 1:24,000; PARDEE AND PARK, 1948, GOLD DEPOSITS OF THE SOUTHERN PIEDMONT: USGS PROFESSIONAL PAPER 213.

  • Production

    NITZE, H.B.C., 1896; PARDEE AND PARK, 1948

General comments

Subject category Comment text
Deposit OREBODY LENGTH PINCHES BELOW THE 300 FOOT LEVEL
Deposit CONNECTS WITH MILLER SHAFT UNDERGROUND; SAME VEIN SYSTEM. IS INCLUDED INuPRODUCTION FIGURES OF THE GOLD HILL MINE WHICH OPERATED MINES ON THE THE BARNHARDT,uRANDOLPH, MILLER, EARNHARDT, AND NORTH VEINS

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.