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  1. Water Mission Area National Spatial Data Infrastructure Datasets
  2. Geodatabase of the datasets used to represent the four aquifer subunits of the Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, and Wisconsin

Geodatabase of the datasets used to represent the four aquifer subunits of the Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, and Wisconsin

Dates

Release Date
2015-01-26
Publication Date

Citation

Stanton, J.S., 2015, Geodatabase of the datasets used to represent the four aquifer subunits of the Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, and Wisconsin: U.S. Geological Survey data release, https://doi.org/10.5066/P9W284G6.

Summary

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This geodatabase includes spatial datasets that represent the Cambrian-Ordovician aquifer system in the States of Wisconsin, Michigan, Minnesota, Iowa, and Illinois. Included are: (1) a polygon dataset that represents the aquifer system extent, (2) raster datasets for the altitude of each aquifer subunit, (3) altitude, or if applicable, thickness contours used to generate the surface rasters, (4) georeferenced images of the figures that were digitized [...]

Contacts

Point of Contact :
U.S. Geological Survey, Midwest Region, Jennifer S. Stanton
Originator :
U.S. Geological Survey
Metadata Contact :
U.S. Geological Survey
SDC Data Owner :
Nebraska Water Science Center
USGS Mission Area :
Water Resources

Attached Files

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ds33camord_a10.xml
Original FGDC Metadata
View 		51.1 KB application/fgdc+xml
ds33camord_a10.jpg thumbnail 46.49 KB image/jpeg
1.47 GB application/zip
1.09 GB application/zip

Purpose

These data were combined into a geodatabase as part of the Saline Groundwater Assessment Program datasets, collected under the auspices of the USGS Office of Groundwater to be used to investigate the locations of usable inland brackish and saline groundwater across the United States. The USGS National Water-Quality Assessment Project (NAWQA) also assisted with support, which enabled the data to be published in the USGS National Spatial Data Infrastructure (NSDI) Node archive, and therefore available for use by the public.
Illustration of dataset
Illustration of dataset

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  • Model Data Management Function (MDMF)

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Provenance

These data were originally released on the Water Mission Area National Spatial Data Infrastructure Node and were migrated to sciencebase.gov in 2023. These data were released prior to the October 1, 2016 effective date for the USGS's policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9W284G6

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