Skip to main content
  1. ScienceBase Catalog
  2. USGS Data Release Products
  3. Digital database of structure contour and isopach maps of multiple subsurface units, Michigan and Illinois Basins, USA

Digital database of structure contour and isopach maps of multiple subsurface units, Michigan and Illinois Basins, USA

Dates

Publication Date
Start Date
1988
End Date
2023

Citation

Spangler, L.S., and Sweetkind, D.S., 2023, Digital database of structure contour and isopach maps of multiple subsurface units, Michigan and Illinois Basins, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9J92672.

Summary

This digital data release presents contour data from multiple subsurface geologic horizons as presented in previously published summaries of the regional subsurface configuration of the Michigan and Illinois Basins. The original maps that served as the source of the digital data within this geodatabase are from the Geological Society of America’s Decade of North American Geology project series, “The Geology of North America” volume D-2, chapter 13 “The Michigan Basin” and chapter 14 “Illinois Basin Region”. Contour maps in the original published chapters were generated from geophysical well logs (generally gamma-ray) and adapted from previously published contour maps. The published contour maps illustrated the distribution sedimentary [...]

Contacts

Point of Contact :
Leland R Spangler
Originator :
Leland R Spangler, Donald S Sweetkind
Metadata Contact :
Leland R Spangler
Publisher :
U.S. Geological Survey
USGS Mission Area :
Core Science Systems
SDC Data Owner :
Geosciences and Environmental Change Science Center
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

Spangler_Sloss_MichiganIllinoisBasins_METADATA.xml
“Metadata”
Original FGDC Metadata
View 		23.92 KB application/fgdc+xml
Michigan_Illinois_Basins_GEMS.gdb.zip
“Michigan_Illinois_Basins_Geodatabase” 		655.76 KB application/zip
Nonspatial_Tables.zip
“Nonspatial_Tables” 		5.16 KB application/zip
MichiganIllinois_Thumbnail.PNG
“Thumbnail_image” 		thumbnail 699.12 KB image/png

Purpose

This digital dataset was created as part of U.S. Geological Survey efforts to inventory, catalog, and release subsurface geologic data in geospatial form as part of a broad directive to develop 2D and 3D geologic information at detailed, national, and continental scales. The elevation, thickness, and extent of subsurface geologic units are required to define the geologic layering in any digital geologic framework model; these data, derived from previous USGS and other studies, provide a fundamental starting point. The intended uses of this dataset include, but are not limited to, natural resource modeling, mapping, and visualization.
Thumbnail_image
Thumbnail_image

Map

Map Preview

Communities

  • USGS Data Release Products

Tags

Provenance

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9J92672

Item Actions

View Item as ...

JSON ATOM ISO XML

Save Item as ...

JSON FGDC MODS XML ISO XML

View Item...

Metrics