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Geochemical characterization of solid media from three watersheds that transect the basal contact of the Duluth Complex, northeastern Minnesota

Dates

Publication Date
Start Date
2012
End Date
2015

Citation

Woodruff, L., 2019, Geochemical characterization of solid media from three watersheds that transect the basal contact of the Duluth Complex, northeastern Minnesota: U.S. Geological Survey data release, https://doi.org/10.5066/P9VO251H.

Summary

To document regional water quality in areas of potential base-metal mining, bedrock, soil, streambed sediment, and surface-water samples were collected and analyzed in three watersheds that cross the basal part of the Duluth Complex (northeastern Minnesota). The three watershed each had different mineral-deposit settings: (1) copper-nickel-platinum group element mineralization (Filson Creek), (2) iron-titanium-oxide mineralization (St. Louis River), and (3) no identified mineralization (Keeley Creek). At least 10 bedrock, 30 soil (two from 15 sites), and up to 13 streambed sediment samples were collected in each watershed and analyzed for 44 major and trace elements by a combined method using a combined inductively coupled plasma atomic [...]

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Attached Files

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Streambed_sediments.xlsx 28.94 KB
Streambed_sediments.csv 15.6 KB
Soil.xlsx 52.52 KB
Soil.csv 35.12 KB
Bedrock.xlsx 26.45 KB
Bedrock.csv 13.96 KB
Analytical_methods_LLD.xlsx 11.36 KB
Analytical_methods_LLD.csv 3.02 KB
Figure1.jpg thumbnail 486.13 KB
Geochemical_characterization_of_solid_media_from_three_watersheds_that_transect_the_basal_contact_of_the_Duluth_Complex_northeastern_Minnesota_v2.xml
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133.13 KB

Purpose

The purpose of this study was to document the influence of bedrock on regional water quality in areas of potential base-metal mining. Data from this study provides a baseline of metal concentrations in solid media within an area of active mineral exploration.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9VO251H

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