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

Randolph Shaft

Producer in Rowan county in North Carolina, United States with commodities Gold, Silver, Copper, Lead, Zinc
Map
XML
JSON
KML
B
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. Ownership information
  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 10111302
MRDS ID W014586
Record type Site
Current site name Randolph Shaft
Related records 10126816

Geographic coordinates

Geographic coordinates: -80.34535, 35.51316 (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

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Chlorite Gangue
Quartz Gangue
Sericite 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) -80.34535, 35.51316
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gold Hill Fault Zone
Type of structure Local
Structure description Small-Scale Ne-Trending Shear Zones

Ore body information

  • General form TABULAR
    Length 500M
    Width 2.3M
    Depth to bottom 253M

Controls for ore emplacement

  • Quartz Veins In Shear Zones

Comments on the geologic information

  • MINERALIZED SHEARS ARE AT ACUTE ANGLE TO SCHISTOSITY.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1842
Year of first production 1842
Year of last production 1915

Mining district

District name Gold Hill District

Ownership information

  • Type Owner
    Owner Gold Hill Mining Co.

Comments on the production information

  • RANDOLPH MINE WAS THE LARGEST GOLD PRODUCER IN THE GOLD HILL MINING DISTRICT; $3,300,000 IN GOLD PRODUCED IN THE DISTRICT AT $20.67 PER OUNCE

Workings at the site

  • Type of workings Underground
    Overall depth 274M
    Overall length 457.2M

Comments on the workings information

  • PRODUCTION SHAFT TO 253 M AND EXPLORATION TO 274 M LEVEL FROM WHICH 70 M OF DRIFTS WERE DRIVEN. DEVELOPED 500 M ALONG THE VEINS. SEVEN SHAFTS CONNECTED TO THREE MAJOR VEINS. VEINS VARIED FROM 15CM TO 1.3M THICK. RANDOLPH SHAFT WAS THE DEEPEST PRODUCTION SHAFT IN THE PIEDMONT.

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    CARPENTER, III, P. ALBERT, 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 TO 127, TEXT 166 PG.; MINE SITE IN GOLD HILL TOPO QUAD AT 1:24,000

  • Production

    LUTTRELL, 1978, USGS OPEN-FILE REPORT 78-152.

General comments

Subject category Comment text
Deposit MINING FROM THE RANDOLPH SHAFT FROM THREE VEINS. ASSAYS RANGEDuCONTAIN ABOUT 2% COPPER, 0.2 TO 1.29 OPT AU. AG IS 0.37 TO 1.75uOPT. COPPER RANGED BETWEEN 0.85 AND 5.96 %.
Deposit MAJOR WORKING SHAFT FOR THE GOLD HILL MINING COMPANY MINE (SEE ALSO MILLER,uNORTH, EARNHARDT SHAFTS)

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