Geology and zinc-lead deposits in the Durango area, Dubuque County, Iowa
Miscellaneous Field Studies Map
33
By: Arthur E. Flint and C. Erwin Brown
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Abstract
Geologic investigations were begun in Iowa to appraise; (1) the possible occurrence of zinc ore in strata that elsewhere in the Upper Mississippi Valley zinc-lead district have been the principal sites of zinc concentration; and (2) lead ore of the type known as "crevice deposits," which were mined so extensively during the 19th century in Dubuque County, Iowa, but have been mined very little since 1910.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geology and zinc-lead deposits in the Durango area, Dubuque County, Iowa |
| Series title | Miscellaneous Field Studies Map |
| Series number | 33 |
| DOI | 10.3133/mf33 |
| Year Published | 1955 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 43.88 x 27.59 inches |
| Country | United States |
| State | Iowa |
| County | Dubuque County |
| Scale | 2000 |
| Google Analytic Metrics | Metrics page |