Little Bob Mine

Past Producer in Paulding county in Georgia, United States with commodities Copper, Zinc, Iron-Pyrite, Cobalt, Nickel
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. Economic information about the deposit and operations
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10067720
MRDS ID W000541
Record type Site
Current site name Little Bob Mine
Related records 10192135

Geographic coordinates

Geographic coordinates: -84.81663, 33.90014 (WGS84)

Site location context

Political divisions (FIPS codes)

Paulding(county)

Georgia(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dallas(quadrangle 1:24,000 scale)

Atlanta(quadrangle 1:100,000 scale)

Atlanta(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Chattahoochee-Lake Harding(hydrologic unit)

Apalachicola(hydrologic accounting unit)

Apalachicola(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Geographic areas

Country State County
United States Georgia Paulding

Commodities

Commodity Importance
Copper Primary
Zinc Critical Secondary
Iron-Pyrite Secondary
Cobalt Critical Tertiary
Nickel Critical Tertiary

Comments on the commodity information

  • Ore Is Banded With Hornblende, Quartz, and Calcite Stringers. Ore Contacts Are Sharp, With Slickenslides. Ore Body Is 450 To 500 Feet Long and 1 To 30 Feet Thick.
  • ORE IS BANDED WITH HORNBLENDE, QUARTZ, AND CALCITE STRINGERS. ORE CONTACTS ARE SHARP, WITH SLICKENSLIDES. ORE BODY IS 450 TO 500 FEET LONG AND 1 TO 30 FEET THICK.

Materials information

Materials Type of material
Pyrrhotite Ore
Galena Ore
Chalcopyrite Ore
Sphalerite Ore
Pyrite Ore
Gahnite Gangue
Garnet Gangue
Sphalerite Gangue
Magnetite Gangue
Hornblende Gangue
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Chlorite, Garnet

Analytical data

Result ASSAYS AS HIGH AS 6.5% CU AND 3.4% ZN

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 Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Univeter Formation
    Rock description Univeter Formation

Nearby scientific data

(1) Biotite Gneiss/ Amphibolite

Economic information

Geologic structures

Type of structure Regional
Structure description Hornblende Schist

Comments on the geologic information

  • ASSOCIATED WITH MAGNETIC IRON-FORMATION ON DISTRICT SCALE GARNET IS ABUNDANT IN WALL ROCK BUT RARE IN ORE. PYRITE WITH MORE THAN 1% CU IN HYPOGENE SULFIDE ORE; CARRIES 100 PPM CO.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Year of first production 1860
Year of last production 1920

Comments on the production information

  • ESTIMATE OF AMOUNT OF TONS MINED BASED ON STOPED AREA, BY G. ESPENSHADE

Comments on the reserve resource information

  • RESERVES UNKNOWN

Reference information

Bibliographic references

  • Analytical Data

    SHEARER AND HULL (1918)GA GEOL SURVEY BULL 33

  • Deposit

    KINKEL,A.R., AND PETERSON, N.P.,1962, USGS MAP MR-13; COOK, 1970,ABRAMS AND MCCONNEL, 1986 GGS FIELD TRIP GUIDBOO

  • Deposit

    Kinkel, A.R., Jr. And Peterson, N.P.,1962, Copper In The United States, Exclusive Of Alaska And Hawaii: U.S. Geological Survey Mineral Resources Map Mr-13.Kinkel, A.R., Jr. And Peterson, N.P.,1962, Copper In The United States, Exclusive Of Alaska And Hawaii: U.S. Geological Survey Mineral Resources Map Mr-13.

  • Deposit

    Cook, R. B., Jr., 1970, The Geologic History Of Massive Sulfide Bodies In West-Central Georgia, Ph.D. Thesis, University Of Georgia, 163 P.Cook, R. B., Jr., 1970, The Geologic History Of Massive Sulfide Bodies In West-Central Georgia, Ph.D. Thesis, University Of Georgia, 163 P.

  • Deposit

    Mcconnell, K.I., German, J., M., And Abrams, C.E., 1986, Gold And Base Metal Mineralization Host Rocks In The Dahlonega And Carroll County Gold Belts: Georgia Geological Society Guidebook, V. 6, No. 5. Mcconnell, K.I., German, J., M., And Abrams, C.E., 1986, Gold And Base Metal Mineralization Host Rocks In The Dahlonega And Carroll County Gold Belts: Georgia Geological Society Guidebook, V. 6, No. 5.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Cannon, Suzanne S., Coury, Anny B. U.S. Geological Survey
Updater 01-MAY-1998 Cocker, Mark D. Georgia Geologic Survey location accuracy, easting and northing,
Updater 01-JUN-1993 Klein, Terry L. U.S. Geological Survey
Editor 01-NOV-2002 Woodruff, Laurel G. U.S. Geological Survey commodity codes; updated references

Beyond USGS

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