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Welborn Mine

Producer in Davidson county in North Carolina, United States with commodities Zinc, Lead, Silver, Copper, Gold
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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. Mineral occurrence model information
  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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10071261
MRDS ID W014551
Record type Site
Current site name Welborn Mine
Alternate or previous names Smith

Geographic coordinates

Geographic coordinates: -80.22729, 35.73092 (WGS84)

Site location context

Political divisions (FIPS codes)

Davidson(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Grist Mountain(quadrangle 1:24,000 scale)

Salisbury(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)

Geographic areas

Country State County
United States North Carolina Davidson

Comments on the location information

  • DIGITIZED FROM A PROSPECT LOCATION ON STROMQUIST AND HENDERSON, 1985. THE GEOLOGIC AND GEOGRAPHIC FRAMEWORK APPEARS TO CORRECT IN THIS LOCATION. HOWEVER, THE LOCATION HAS NOT BEEN VERIFIED.

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore

Analytical data

Result GOLD ASSAYS OF 0.78, 0.51, 0.28 OPT AND SILVER ASSAYS OF 11, 3.2, 1.75 OPT.

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Rock unit name Mafic Rock In Mudstone Member Of The Cid Formation
    Rock description Mafic Rock In Mudstone Member Of The Cid Formation
    Stratigraphic age (youngest) Early Cambrian
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -80.22729, 35.73092
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gold Hill Fault

Ore body information

  • General form LENSES
    Strike N 25-30 E
    Dip 20 NW
    Thickness 1M

Controls for ore emplacement

  • Flat-Lying Veins With Quartz

Comments on the geologic information

  • IN DEFORMED ANDESITIC TUFF, LOCALLY BRECCIA. SULFIDE-QUARTZ LENSES TRENDINGuN25-30 E DIPPING 20 DEG NW. HIGH GOLD VALUES ARE ASSOCIATED WITH THEuPYRITIC ORE; HIGH SILVER WITH GALENA-RICH ORE. GALENA, SPHALERITE AND PYRITEuARE COMMON WHEREAS CHALCOPYRITE IS SPARSE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1832
Year of first production 1832

Mining district

District name Cid District

Comments on the production information

  • ORE CONSIDERED TOO COMPLEX TO SMELT; HIGH SPHALERITE CONTENT AND SPHALERITE METALLURGY UNKNOWN AT THAT TIME

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 15M

Reference information

Bibliographic references

  • Deposit

    NITZE, H. B. C., 1896, "GOLD DEPOSITS OF NORTH CAROLINA", NORTH CAROLINA GEOLOGICAL SURVEY BULL. NO. 3, MINE TEXT PG. 68, TEXT 200 PG. POGUE, J.E., 1910, CID MINING DISTRICT OF NORTH CAROLINA: NORTH CAROLINA GEOLOGICAL AND ECONOMIC SURVEY BULLETIN 22, P106.; NITZE, H.B.C., AND HANNA, G.B., 1896, GOLD DEPOSITS OF NORTH CAROLINA, NORTH CAROLINA GEOLOGICAL SURVEY BULLETIN 3, P. 68

  • Production

    NITZE, H. B. C., 1896

General comments

Subject category Comment text
Deposit PODS 0.3-1M IN THICKNESS.
Deposit POGUE, 1910 INDICATES THAT THE ORE IS SIMILAR TO THAT AT THE SILVER HILL MINE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-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