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Emmons Mine

Past Producer in Davidson county in North Carolina, United States with commodities Copper, Gold, Silver, Lead, Zinc
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10026440
MRDS ID K005069
Record type Site
Current site name Emmons Mine
Alternate or previous names Davidson Mine Or Hercules Mine
Related records 10200206

Geographic coordinates

Geographic coordinates: -80.10645, 35.69315 (WGS84)
Relative position 12.4 MI SOUTHEAST OF LEXINGTON AND 4.2 MI NORTH OF DENTON.

Site location context

Political divisions (FIPS codes)

Davidson(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Denton(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 STROMQUIST AND HENDERSON, 1985

Commodities

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

Comments on the commodity information

  • SULFIDE BEARING SHEAR ZONE IN ANDESITIC TUFF WITH ARGILLITES OF VOLCANIC SLATE; ORE ZONE 1 TO 3 M THICK, CONTAINS QUARTZ STRINGERS 30 CM THICK; BEDROCK SCHISTOSITY N 22 TO 31 DEGREES E, DIPPING 40 DEGREES NW, AND ORE SHOOTS PITCH TO SW; ORE MOSTLY CHALCOPYRITE, SOME GALENA, SPHALERITE, PYRITE, PYRRHOTITE, MALACHITE, SIDERITE AND CHLORITE; ONE MINED ORE BODY ABOUT 1 M WIDE, 17 M LONG AND 134 M DEEP; ONE CONCENTRATE ASSAY WAS 7.7% CU, 1.27 OUNCES AG AND 0.1 OUNCE GOLD PER TON; TWO MAIN SHAFTS, ONE TO DEPTH OF 192 M, OTHER TO DEPTH OF 158 M; SHAFTS 227 M APART, BOTH IN ORE ZONE WITH LEVELS AT 70 M, 93 M, 117 M, AND 137 M IN EARLY PRODUCTION PERIOD, DEEPER SHAFT WAS INCLINED; ANOTHER SHAFT WAS 57 M DEEP; MILL USED HUNT AND DOUGLASS (OLD) PROCESS SUCCESSFULLY FOR LONG PERIOD; ESTIMATED VALUE OF TOTAL PRODUCTION IS $108,500

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Malachite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Chlorite Gangue
Limonite Gangue

Analytical data

Result SMELTER RETURNS OF A REPRESENTATIVE CARLOAD OF CONCENTRATE RAN 7.7% CU, 1.27 OUNCES AG, AND 0.1 OUNCE AU PER TON

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 Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Stratigraphic age (youngest) Paleocene

Nearby scientific data

(1) -80.10645, 35.69315
ListMap

Economic information

Ore body information

  • General form TABULAR

Comments on the geologic information

  • HOST ROCKS ARE SHEARED IN PLACES. VEINLETS OF QUARTZ ARE ENCLOSED BY SILICIFIED CHLORITE AND CONTAIN ONLY MINOR CHALCOPYRITE, PYRITE AND LIMONITE BLEBS. A MIXTURE OF CHLORITE, SERICITE AND QUARTZ CONTAINS PYRITE WITH SOME CHALCOPYRITE. MALACHITE STAINS SOME FRACTURES. THE CHLORITE SELVAGE IS SLICKENSIDED AND CONTAINS PYRITE, PYRRHOTITE AND CHALCOPYRITE IN FRACTURES. ONE ORE BODY IS DESCRIBED AS BEING 2 TO 3 FT. WIDE, 50 FT. LONG AND 400 FT DEEP AND COMPOSED CHIEFLY OF CHALCOPYRITE WITH MINOR PYRITE, GALENA AND SPHALERITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1861
Year of first production 1861
Year of last production 1904

Mining district

District name Cid District

Comments on the production information

  • OPERATED BEFORE CIVIL WAR; AGAIN IN 1885 TO 1886; AGAIN 1902 TO 1904; LAST IN 1906 TO 1907.

Comments on the reserve resource information

  • $100,000 PRODUCTION MOSTLY FROM COPPER RETURNS.
  • PROBABLY ONLY VERY LOW GRADE COPPER ORE REMAINS IN THIS ONE SHEAR ZONE

Workings at the site

  • Type of workings Underground
    Overall depth 175.26M

Comments on the workings information

  • TWO MAIN SHAFTS WERE OPENED ON THE PROPERTY, ONE SHAFT OPENED TO A DEPTH OF 575 FT AND A SECOND SHAFT OPENED TO 475 FT. A THIRD SHAFT WAS OPENED TO A DEPTH OF 170 FT. LEVELS WERE DRIVEN FROM EACH SHAFT TO WORK THE ORE.

Comments on development

  • AFTER CLOSING FOR CIVIL WAR MINE WAS REOPENED SHORTLY AFTER AND WORKED FOR A FEW YEARS. MINE WAS OPERATED IN 1885 AND 1886 AND SOME DEVELOPMENT WORK WAS CARRIED OUT FROM 1902 UNTIL 1904. LAST RECORDED PRODUCTIONS WERE IN 1906 AND 1907. TOTAL PRODUCTION IS ESTIMATED AT $108,500.

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.

  • Production

    CARPENTER, 1976

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.

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