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

Smart Mine

Past Producer in Union county in North Carolina, United States with commodities Gold, Lead, Silver, Copper, 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. 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. Production statistics
  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 10026531
MRDS ID K005237
Record type Site
Current site name Smart Mine
Alternate or previous names Bonnie Doon Mine
Related records 10199925

Geographic coordinates

Geographic coordinates: -80.65369, 35.08928 (WGS84)
Relative position 1.2 MI. NORTHEAST OF INDIAN TRAIL AND 9.5 MI. NORTHWEST OF MONROE.

Site location context

Political divisions (FIPS codes)

Union(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Matthews(quadrangle 1:24,000 scale)

Charlotte(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 Union

Comments on the location information

  • LOCATION APPROXIMATE

Commodities

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

Comments on the commodity information

  • SILICIFIED SERICITE PHYLLITE STRIKING N 40 DEGREES E AND DIPPING 75 DEGREES NW; PHYLLITE SHEARED AND CONTAINS DISSEMINATED PYRITE; ORE WAS GALENA WITH PYRITE IN A MATRIX OF QUARTZ; SHAFT ABOUT 70M DEEP WITH AT LEAST THREE LEVELS WITH DRIFT LENGTH OF EACH AT LEAST 20M; SILICEOUS VEIN 1M TO 1.3M THICK WITH ORE SEAM CONSIDERABLY THINNER; FIRST OPENED IN 1835 AND INTERMITTENTLY TILL 1911; IN 1970 SHAFT 7M BY 5M AND NUMEROUS SMALL PROSPECT PITS USED AS TRASH DUMPS; THREE ASSAYS SHOW RANGE OF GOLD VALUE PER TON OF $12.40 TO $46.51 WITH GOLD AT $20.00 PER OUNCE AND SILVER VALUE OF $2.07 TO $5.95 WITH SILVER AT $1.29 PER OUNCE; APPEARS TO BE SOUTHWEST EXTENSION OF SECREST GOLD-SILVER MINE; IS ONE OF THE MINES IN THE LOCAL EASTERN GOLD BELT PARALLEL TO LOCAL WESTERN GOLD BELT 0.8 KM TO WEST

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue
Sericite Gangue

Analytical data

Result ASSAYS 0.6 OPT AU, 3.0 OPT AG
Result 0.65 OPT AU, 1.6 OPT AG
Result 2.3 OPT AU, 4.6 OPT AG.

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
    Stratigraphic age (youngest) Early Cambrian

Nearby scientific data

(1) -80.65369, 35.08928
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gold Hill Fault

Ore body information

  • General form TABULAR
    Strike N 30-40 E
    Dip 75-80 DEG NW
    Length 700M
    Width 1.2M

Controls for ore emplacement

  • Quartz Veins In Shear Zone. Possible Pre-Kinematic Massive Sulfide Contribution Based On The High Base-Metal Contents And The Character Of Silicically Altered Sericite Schist Which May Represent A Stratibound Alteration Zone. Host-Rock.

Comments on the geologic information

  • THE MINE WAS OPENED IN A ZONE OF SILICIFIED SERICITE PHYLLITE STRIKING N 40 DEG E AND DIPPING NORTHWEST AT 75 DEG. THE PHYLLITE HAS BEEN SHEARED AND CONTAINS DISSEMINATED PYRITE. GALENA, PYRITE, SPHALERITE, AND CHALCOPYRITE OCCUR IN QUARTZ VEIN. GALENA MAY BE PRESENT ON A SEPARATE DISCORDANT VEIN. HAS ALSO BEEN REPORTED AT THE MINE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1835
Year of last production 1911

Mining district

District name Monroe Area

Production statistics

  • Year 1888
    Period 1888
    Description Cp_Grade: ^0.69 Opt Au, 0.23 Opt Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 6g/mt
    Major Gold Gold 19g/mt

Comments on the production information

  • PRODUCTION FOR 1888 DEVELOPMENT OF THE LEAD SHAFT.

Comments on the reserve resource information

  • STOCKPILED ORE

Workings at the site

  • Type of workings Surface/Underground
    Length 170M
    Overall depth 61M
    Overall length 557.78M

Comments on the workings information

  • A SHAFT WAS SUNK TO A DEPTH OF APPROXIMATELY 200 FT. WITH NUMEROUS DRIFTS FROM THE SHAFT. LEVELS AT 35, 60, 95, 120, AND 186 FEET, EACH OF WITH AT LEAST 60 FEET OF LENGTH WERE COMPLETED BY 1907. IN ALL SIX SHAFTS WERE SUNK ON THE DEPOSIT. IN 1970, A LARGE SHAFT, 20 FT. BY 15 FT. AT THE SURFACE, AND NUMEROUS SMALL PROSPECT PITS WERE ALONG A LINE TRENDING N 40 DEG E.

Comments on development

  • THE MINE WAS WORKED INTERMITTENTLY UNTIL 1911.

Reference information

Bibliographic references

  • Analytical Data

    NITZE AND HANNA, 1896, P. 100.

  • Deposit

    CARPENTER, P. A., 1976, METALLIC MINERAL DEPOSITS OF THE CAROLINA SLATE BELT, NORTH CAROLINA: NORTH CAROLINA MINERAL RESOURCES 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.

  • Deposit

    NITZE, H.B.C., 1896, GOLD DEPOSITS OF NORTH CAROLINA: NORTH CAROLINA GEOLOGICAL SURVEY BULL. NO. 3, 200P.

  • Production

    PRODUCTION C.B. BROWN, 1934, UNPUBLISHED FILED NOTES; GRADE FROM PRATT, 1907, N.C. GEOLOGICAL SURVEY, ECON. PAPER 14, P. 61-62.

  • Reserve-Resource

    PRATT, J.H., 1907, NCGS BULL. 14, P. 16

General comments

Subject category Comment text
Deposit FULLWOOD MINE ADJOINS
Deposit GOLD-BEARING QUARTZ VEINS MAY BE RELATED TO GOLD HILL FAULT.uHOWEVER, THE BASE-METAL SUITE AND CONTENT, THE HIGHLYuSERICITIC AND SILICIC NATURE OF THE ORE ZONE SUGGEST THAT AuSTRATABOUND COMPONENT OF METALLIZATION MAY HAVE PREDATED THEuSHEARING.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1976 D'Agostino, John P. U.S. Geological Survey
Reporter 01-DEC-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