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Blair, T., Mine

Past Producer in Carroll county in Virginia, United States with commodities Copper, Zinc, Lead, Iron, Pig Iron, Iron, Arsenic
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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. 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. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10079975
MRDS ID W030846
Record type Site
Current site name Blair, T., Mine
Alternate or previous names Blair Mine

Geographic coordinates

Geographic coordinates: -80.8898, 36.74786 (WGS84)
Elevation 716
Relative position ABOUT 1.8 KM (1.1 MI) N. 77 DEG E. OF HEBRON.

Site location context

Political divisions (FIPS codes)

Carroll(county)

Virginia(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Galax(quadrangle 1:24,000 scale)

Galax(quadrangle 1:100,000 scale)

Winston-Salem(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper New(hydrologic unit)

Kanawha(hydrologic accounting unit)

Kanawha(hydrologic subregion)

Ohio(hydrologic region)

Geographic areas

Country State County
United States Virginia Carroll

Comments on the location information

  • LOCATION APPROXIMATE, NOT FIELD CHECKED. ABOUT 400 M NE. OF THE END OF A DIRT ROAD WHICH EXTENDS FROM THE E. SIDE OF STATE ROAD 735 ABOUT 0.8 KM (0.5 MI) FROM ITS INTERSECTION WITH STATE ROAD 635. WORKINGS EXTEND TO CROOKED CREEK ON NE AND 575 M TO SW.

Commodities

Commodity Importance
Copper Primary
Zinc Critical Tertiary
Lead Tertiary
Iron, Pig Iron Tertiary
Iron Tertiary
Arsenic Critical Tertiary

Comments on the commodity information

  • PAST MINING OPERATIONS CONCENTRATED ON SUPERGENE MINERALS (PRIMARILY COVELLITE).

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Covellite Ore
Cubanite Ore
Cuprite Ore
Galena Ore
Goethite Ore
Malachite Ore
Pyrrhotite Ore
Sphalerite Ore
Muscovite Gangue
Quartz Gangue

Alteration

  • (Local) Regional Metamorphism

Mineral occurrence model information

Model code 91
USGS model code 24b
Deposit model name Massive sulfide, Besshi (Japanese deposits)
Mark3 model number 30

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Lynchburg Formation
    Rock description Lynchburg Formation
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -80.8898, 36.74786
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne-Sw Trend, Blue Ridge Anticlinorium, Fries Overthrust, Gossan Lead Overthrust, Main Sulfide Zone Strikes N. 45 Deg E. And Dips 30-60 Deg Se.

Ore body information

  • General form POD/LENS
    Strike N. 60 DEG. E.
    Dip 72 DEG. SE.
    Length 670.5M

Controls for ore emplacement

  • Lenticular Troughs

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1861
Year of first production 1857

Mining district

District name Copperas Hill Segment/Gossan Lead District/Southern Section-Blue Ridge Province

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Yarnell Mining Co.
  • Type Owner
    Owner Virginia Iron, Coal And Coke Co. (T. Blair Tract) And T. Blair.

Comments on the production information

  • ORE OF GOOD QUALITY WAS REPORTED

Workings at the site

  • Type of workings Surface/Underground
    Length 24.4M
    Overall depth 9.1M

Comments on the workings information

  • CURREY (1859) REPORTS SINGLE SHAFT AND TUNNEL (9.1 M AND 15.2 M RESPECTIVELY.

Reference information

Bibliographic references

  • Deposit

    CURREY, R.O., 1859, A GEOLOGICAL VISIT TO THE VIRGINIA COPPER REGION: KNOXVILLE, TENN., BECKETT, HAWS AND CO.; REPRINTED IN PART UNDER COPPER AND IRON REGION OF THE FLOYD-CARROLL-GRAYSON PLATEAU OF THE BLUE RIDGE IN VIRGINIA, ETC.: THE VIRGINIAS, 1880 V. 1, P. 62-64, 69-71, 74-77, 80-81, 95.

  • Deposit

    KLINE, M.H., AND BALLARD, T.J., 1949, INVESTIGATION OF THE GREAT GOSSAN LEAD CARROLL COUNTY, VA.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4532, 39 P.

  • Deposit

    WRIGHT, R.J., AND RAMAN, N.D., 1948, THE GOSSAN LEAD, CARROLL COUNTY, VIRGINIA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT, 21 P.

  • Deposit

    1857 DIREXPL YARNELL MINING CO.: OPENED MINE.

  • Deposit

    1911 RECON W.H. WEED: BULLETIN 455.

  • Deposit

    1935 RECON C.S. ROSS: PROF. PAPER 179.

  • Deposit

    1939 GEOLMAP VA. GEOL. SURV.: BULL. 72.

  • Deposit

    1948 RECON R.J. WRIGHT & N.D. RAMAN: OPEN-FILE REPORT

  • Production

    CURREY (1859)

General comments

Subject category Comment text
Deposit DIMENSIONS APPROXIMATE. LENS IS A SEGMENT OF 27.4 KM (17 MI) ELONGATED MINERALIZED ZONE. WIDTH IS AT LEAST 3.6 M. MINERALIZED ZONE TRENDS NEARLY NORTH FOR A SHORT DISTANCE AT ABOUT 305 M SE OF SHARP BEND IN CROOKED CREEK, WHILE A SPLIT OF THE ZONE CONTINUES FOR ABOUT 61 M ALONG THE PREVALENT NE STRIKE (WRIGHT AND RAMAN, P. 15).
Deposit Discovery Year: PRE-CIVIL WAR

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1980 Beaulieu, Harvey R. (Le Van, D. C.) U.S. Geological Survey

Beyond USGS

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

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