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Bonson Mine

Past Producer in Dubuque county in Iowa, United States with commodities Zinc, Lead, Iron
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10082025
MRDS ID W044524
Record type Site
Current site name Bonson Mine

Geographic coordinates

Geographic coordinates: -90.76901, 42.5514 (WGS84)

Site location context

Political divisions (FIPS codes)

Dubuque(county)

Iowa(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sherrill(quadrangle 1:24,000 scale)

Dubuque North(quadrangle 1:100,000 scale)

Dubuque(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Grant-Little Maquoketa(hydrologic unit)

Upper Mississippi-Maquoketa-Plum(hydrologic accounting unit)

Upper Mississippi-Maquoketa-Plum(hydrologic subregion)

Upper Mississippi(hydrologic region)

Geographic areas

Country State County
United States Iowa Dubuque

Commodities

Commodity Importance
Zinc Critical Primary
Lead Primary
Iron Primary

Materials information

Materials Type of material
Galena Ore
Limonite Ore
Sphalerite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Decorah Formation
    Rock description Decorah Formation
    Stratigraphic age (youngest) Middle Ordovician

Nearby scientific data

(1) Galena Group and Platteville Formation
ListMap

Economic information

Comments on the geologic information

  • N85<PYRITIC ORE (SPHALERITE) IS IN DECORAH FORMATION FOLLOWING E-STRIKING NEAR-VERTICAL JOINTS AS FRACTURE FILLINGS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    F1 < HEYL, A. V., AGNEW, A. F., LYONS, E. J., AND BEHRE, C. H., JR., 1959, THE GEOLOGY OF THE UPPER MISSISSIPPI VALLEY ZINC-LEAD DISTRICT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 309, 310 P.

  • Deposit

    F2 < FLINT, A. E., AND BROWN, C. E., 1955, GEOLOGY AND ZINC-LEAD DEPOSITS IN THE DURANGO AREA, DUBUQUE COUNTY, IOWA: U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS FIELD STUDIES MAP MF 33, 1:12,000.

General comments

Subject category Comment text
Deposit GEN<SHAFT DUG IN 1800'S TO 90' DEPTH TO MINE LEAD, DEEPENED IN 1910 TO 165 FOOT DEPTH TO MINE SPHALERITE; THIS IS THE ONLY DEEP SHAFT TESTING LOWER BEDS IN THE DURANGO AREA (NORTHERN DUBUQUE SUBDISTRICT). IRON RECOVERED FROM LIMONITE FROM SAME ORE TREND A HALF MILE WEST OF MAIN BONSON SHAFT, 1896-1897. CADASTRAL LOCATION: NW 1/4 NE 1/4 SEC. 6, T. 89 N., R. 2. E. ; INFO.SRC : COBB

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1985 Miller, M. U.S. Geological Survey

Beyond USGS

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

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