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

Coggins Mine

Past Producer in Montgomery county in North Carolina, United States with commodities Gold, Silver
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10026494
MRDS ID K005167
Record type Site
Current site name Coggins Mine
Alternate or previous names Rich Cog, Appalachian Mine
Related records 10224014

Geographic coordinates

Geographic coordinates: -80.01978, 35.48704 (WGS84)
Relative position 11.3 MILES NORTHWEST OF TROY AND 1.3 MILES NORTHEAST OF ELDORADO.

Site location context

Political divisions (FIPS codes)

Montgomery(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Badin(quadrangle 1:24,000 scale)

Charlotte(quadrangle 1:100,000 scale)

Charlotte(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)

Geographic areas

Country State County
United States North Carolina Montgomery

Comments on the location information

  • DIGITIZED FROM STROMQUIST AND HENDERSON, 1985

Commodities

Commodity Importance
Gold Primary
Silver Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Ore
Pyrrhotite Ore
Calcite Gangue
Chlorite Gangue
Sericite Gangue

Alteration

  • (Local) Silicic, Chloritic, Sericitic, Calcitic

Analytical data

Result ORE ZONE COMMONLY 0.3 OPR AU

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) Early Cambrian
    Stratigraphic age (youngest) Early Cambrian

Nearby scientific data

(1) -80.01978, 35.48704
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne-Trending Broad Folds; Near Uwharrie-Tillery Formation Contact.
Type of structure Local
Structure description Ne-Trending Fault Zones And Tight Drag Folds Associated With Them.

Ore body information

  • General form NE-TRENDING LENSES
    Strike N 45 E
    Dip 50 NW
    Thickness 6M
    Length 21M
    Depth to bottom 107M

Controls for ore emplacement

  • Silicified Shear Zone. Some Stratabound Sulfide Lenses (Syngenetic?)

Comments on the geologic information

  • COGGINS MINE SOUTH WEST OF THE RUSSELL MINE AND IS SIMILAR IN MOST RESPECTS. THE COGGINS, HOWEVER, HAS LESS SILICIEOUS ALTERATIONS AND PERHAPS MORE CHLORITE. THE ARGILLITE IS DARK GRAY AND CONTAINS DISSEMINATED PYRITE AND PYRRHOTITE. THE ORE IS IN A SILICEOUS ZONE IN THE ARGILLITE CONTROLLED BY NE-TRENDING REVERSE FAULTS THAT HAVE PRODUCED SMALL SCALE DRAG-FOLDS. SOME SHEARING AND BRECCIATION OF THE SILICEOUS MATERIAL HAS OCCURRED AND IN SOME INSTANCES FRACTURES HAVE BEEN HEALED WITH CALCITE. JOINT SURFACES OF THE ARGILLITE ARE OFTEN COATED WITH PYRITE AND PYRRHOTITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1882
Year of last production 1926

Mining district

District name Carolina Slate Belt

Production statistics

  • Year 1925
    Period 1922-1925
    Accuracy Estimate
    Description Cp_Grade: ^0.06 Opt (Estimated)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 2g/mt

Comments on the reserve resource information

  • INCLUDES ORE BLOCKED OUT AT TIME OF PRATTS VISIT.

Workings at the site

  • Type of workings Underground
    Overall depth 167M
    Overall length 55.78M
    Overall width 30M

Comments on the workings information

  • ONE INCLINED SHAFT WAS OPENED ON THE PROPERTY AND MOST OF THE DEVELOPMENT WAS CARRIED OUT FROM THIS SHAFT. SEVERAL SMALLER SHAFTS WERE SUNK ALONG THE STRIKE OF THE ORE ZONE. THE SHAFTS FORM A LINE STRIKING N 45 DEG E. SEVEN LEVELS WERE DEVELOPED, THE 100, 200, 250, 350, 450, AND 550. DRIFTING FOR AT LEAST 45 M ON EACH LEVEL ALLOWED DEVELOPMENT OF STOPES. LEVELS WERE DEVELOPED, THE 100, 200, AND 250 FOOT LEVELS. SOUTHERNMOST SHAFT IS 25 FT IN DIAMETER AND FILLED WITH WATER TO WITHIN 35 FT. OF THE SURFACE. THE NORTHERNMOST SHAFT IS 50 FT. LONG AND 30 FT. WIDE. DUMP MATERIAL IS OVERGROWN BUT A LARGE AMOUNT REMAINS.

Comments on development

  • SEVERAL EXPLORATION PROGRAMS WERE CARRIED OUT SIMULTANEOUSLY WITH THOSE AT THE RUSSELL MINE, BY GULF RESOURCES, HAILE MINING COMPANY, TENNECO MINERALS, AND PIEDMONT MINING, FROM 1970-1993,

Reference information

Bibliographic references

  • Deposit

    CARPENTER, P. A., III, 1976, METALLIC MINERAL DEPOSITS OF THE CAROLINA SLATE BELT, NORTH CAROLINA: NORTH CAROLINA MINERAL RESOURCES SEC. BULL. 84, 166 P.

  • Deposit

    PARDEE, J.T., AND PARK, C.F., JR., 1948, GOLD DEPOSITS OF THE SOUTHERN PIEDMONT: U.S. GEOLOGICAL SURVEY PROF PAPER 213, 156 P.

  • Reserve-Resource

    PRATT, UNPUBLISHED (FROM C.B. BROWN, USGS, UNPUBLISHED FIELD NOTES

  • Reserve-Resource

    PRATT, UNPUBLISHED REPORT, 1919 (FROM NOTES OF C.B. BROWN , USGS)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1976 Mcdaniel, Ronald D. North Carolina Division of Land Resources
Updater 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.

Maps centered on this site