Colburn Mine

Past Producer in Randolph 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. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10055228
MRDS ID RE00513
Record type Site
Current site name Colburn Mine
Alternate or previous names Coburn

Geographic coordinates

Geographic coordinates: -79.8945, 35.62399 (WGS84)

Site location context

Political divisions (FIPS codes)

Randolph(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eleazer(quadrangle 1:24,000 scale)

Chapel Hill(quadrangle 1:100,000 scale)

Raleigh(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Yadkin(hydrologic unit)

Upper Pee Dee(hydrologic accounting unit)

Pee Dee(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Federal lands

Croatan National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Uwharrie National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

National Forests in North Carolina(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Birkhead Mountains Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States North Carolina Randolph

Commodities

Commodity Importance
Gold Primary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Ore
Chlorite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Chloritic, Silicic, Carbonate, Biotite

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 Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Uwharrie Formation
    Rock description Uwharrie Formation
    Stratigraphic age (youngest) Early Cambrian
    Stratigraphic age (youngest) Early Cambrian
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name Uwharrie Formation
    Rock description Uwharrie Formation

Nearby scientific data

(1) -79.8945, 35.62399

Economic information

Geologic structures

Type of structure Local
Structure description Fault Trending N 25 E, Dipping 65 W

Ore body information

  • General form TABULAR ZONE
    Strike N 25 E
    Dip 65 NW
    Length 40M
    Width 2M

Controls for ore emplacement

  • Silicified Zone

Comments on the geologic information

  • SILICIFIED ZONE IN BASALTIC TUFF FOLLOWS NORTHEAST-TRENDING FAULT. CRYPTICuGOLDEN-BROWN BIOTITE ALTERATION.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category Federal
Area name Birkhead Mountains Wilderness Area

Workings at the site

  • Type of workings Surface/Underground
    Overall length 36.58M
    Overall width 3M

Comments on the workings information

  • SERIES OF SMALL PITS, OPEN-CUTS AND ONE FILLED SHAFT. SHALLOW TRENCHES CROSSCUT THE ORE ZONE.

Comments on development

  • IN THE BIRKHEAD MOUNTAINS WILDERNESS AREA

Reference information

Bibliographic references

  • Deposit

    KLEIN, T.L., USGS, SITE VISIT

General comments

Subject category Comment text
Deposit ALONG SAME STRUCTURE AS THE DOWD, RUSH, AND GLUYAS MINES TO THEuSOUTH. DEPOSIT MAY HAVE SYN-VOLCANIC ORIGIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1992 Klein, T.L. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.