Digital data from previous USGS hydrogeologic studies of the Cambrian-Ordovician aquifer system in the northern Midwest, United States

Publication Date

2023-10-23

Time Period

2023

Sweetkind, D.S., and Simon, J.L., 2023, Digital data from previous USGS hydrogeologic studies of the Cambrian-Ordovician aquifer system in the northern Midwest, United States: U.S. Geological Survey data release, https://doi.org/10.5066/P9UJOR3U.

Type: Related Primary Publication

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. This digital dataset results from goal within the U.S. Geological Survey’s (USGS) National Cooperative Geologic Mapping Program to convert subsurface data that were previously published in non-digital format to digital, vector-based data suitable for use by the public and in USGS studies. The objective of the data conversion is to reproduce the original published mapping with little to no added interpretation. 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 studies, provide a fundamental starting point. The intended uses of this dataset include, but are not limited to, natural resource modeling, mapping, and visualization.

• National Geologic Synthesis (NGS)