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Occurrence

Past Producer in Lucas county in Iowa, United States with commodity 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. 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 10082007
MRDS ID W044500
Record type Site
Current site name Occurrence

Geographic coordinates

Geographic coordinates: -93.16937, 41.11446 (WGS84)

Site location context

Political divisions (FIPS codes)

Lucas(county)

Iowa(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Olmitz(quadrangle 1:24,000 scale)

Indianola(quadrangle 1:100,000 scale)

Des Moines(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Des Moines(hydrologic unit)

Des Moines(hydrologic accounting unit)

Des Moines(hydrologic subregion)

Upper Mississippi(hydrologic region)

Geographic areas

Country State County
United States Iowa Lucas

Commodities

Commodity Importance
Zinc Critical Primary

Materials information

Materials Type of material
Sphalerite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Coal
    Rock unit name Cherokee Group
    Rock description Cherokee Group
    Stratigraphic age (youngest) Pennsylvanian

Nearby scientific data

(1) -93.16937, 41.11446
ListMap

Economic information

Comments on the geologic information

  • N85<SPHALERITE IN CLEATS IN COAL; SAMPLES FROM THE LADDSDALE COAL OF THE CHEROKEE GROUP
  • N85<MOST OF THE ORE DEPOSITS IN THE IOWA PART OF THE UPPER MISSISSIPPI VALLEY LEAD-ZINC DISTRICT ARE IN THE GALENA DOLOMITE AND IN LIMESTONES AND DOLOMITE OF THE DECORAH AND UPPER PLATTEVILLE FORMATIONS OF MIDDLE ORDOVICIAN AGE. THE ORES ARE IN (1) "GASH VEIN" (CREVICE FILLINGS) DEPOSITS, (2) "PITCH AND FLAT"DEPOSITS, AND (3) RESIDUAL AND PLACER DEPOSITS. THE ORES ARE DISTINCTIVE BECAUSE OF THE LACK OF HIGH TEMPERATURE MINERALS, CRYSTALLIZATION IN OPEN SPACES (WITH LIMITED AMOUNTS OF DISSEMINATED AND REPLACEMENT ORE), AND ARE ASSOCIATED WITH FOLDS, FRACTURES, AND JOINTS. COLLAPSE FEATURES ARE FORMED LOCALLY BY SOLUTION-SLUMP, AND ORES ARE LOCALLY FOUND IN SOLUTION BRECCIAS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Comments on the production information

  • D10<LEAD MINING BEGAN BEFORE THE ARRIVAL OF THE EARLY FRENCH SETTLERS WHO FOUND MINE PITS AND PRIMITIVE SMELTING OF LEAD ORES OVER OPEN FIRES CONDUCTED BY THE INDIANS. DEPOSITS OF GALENA IDENTIFIED IN 1780 BY THE WIFE OF THE INDIAN WARRIER PEOSTA AT KETTLE CHIEF'S VILLAGE (NOW DUBUQUE) WERE GRANTED TO JULIEN DUBUQUE UNDER SPANISH LAND GRANT, AND MINED FROM ABOUT 1788-1810. ZINC WAS FIRST RECOVERED IN 1860. PRODUCTION OF THE IOWA PART OF THE UPPER MISSISSIPPI VALLEY DISTRICT ESTIMATED AT 200,000 TONS METALLIC LEAD UP TO 1953, THE LAST YEAR OF RECORDED PRODUCTION; PRODUCTION OF ZINC CONCENTRATES (MOSTLY SMITHSONITE) ESTIMATED AT ABOUT 36,000 TONS FROM 1879-1910.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GEN<LOCATION APPROXIMATE, HATCH LOCALITY F. COAL: ZN 58-280 PPM, AVG. 123 PPM; CD .12-1.1 PPM, AVG. 0.36 PPM. ASH: ZN 260-3,120 PPM, AVG. 1,005 PPM, CD 1-12 PPM, AVG. 3.0 PPM. CADASTRAL LOCATION: SEC. 21, T. 73 N., R. 20 W. ; INFO.SRC : COBB
Deposit GEN<THE UPPER MISSISSIPPI VALLEY LEAD-ZINC DISTRICT INCLUDES THOUSANDS OF SMALL LEAD MINES, PERHAPS 400 ZINC MINES, AND SOME TENS OF MINES PRODUCING COPPER, IRON AND BARITE. MOST OF THE DISTRICT IS IN WISCONSIN, A SMALLER PART IN ILLINOIS, AND AN EVEN SMALLER PART IN IOWA. THE PRINCIPAL AREAS OF MINING IN IOWA ARE THE GUTTENBERG, NORTH BUENA VISTA, SHERRILL MOUND, DUBUQUE, AND TETE DES MORTS SUBDISTRICTS (HEYL AND OTHERS, 1959). MOST SUCESSFUL EXPLORATION HAS BEEN CONDUCTED IN AREAS WHERE THE FAVORABLE CARBONATE HOST ROCKS OUTCROP. UNDISCOVERED EXTENSIONS OF THE DISTRICT IN IOWA ARE LIKELY WEST OF THE DISTRICT, WHERE THE FAVORABLE CARBONATE ROCKS ARE COVERED BY MAQUOQUETA SHALE AND YOUNGER ROCKS, AND BY THE THICK BLANKET OF GLACIAL DEBRIS. ; 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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