Aquifer framework datasets used to represent the Marshall aquifer, Michigan

The Marshall aquifer underlies much of the Lower Peninsula of Michigan and has a maximum thickness of 493 feet (Lampe, 2009). The aquifer consists mainly of medium-grained sandstone and is overlain by Pennsylvanian-age rocks and glacial deposits and underlain by the Devonian-Mississippian-age confining unit. The Marshall aquifer is one of the most productive aquifers in the state where unconfined conditions occur (HA 730-J). This product provides source data for the Marshall aquifer framework, including: Extent shapefiles: 1. p_32MRSHLL.shp: Polygon shapefile containing the areal extent of the Marshall aquifer (32MRSHLL_AqExtent). The extent file contains no aquifer subunits. Point shapefiles: 1. po_32MRSHLL_top.shp: Point dataset containing altitude values, in feet reference to North American Vertical Datum of 1988 (NAVD88), across the top of the Marshall aquifer (Lampe, 2009). These data were used to create the ra_32MRSHLL_top.tif raster dataset. 2. po_32MRSHLL_bot.shp: Point dataset containing altitude values, in feet reference to NAVD88, across the bottom of the Marshall aquifer (Lampe, 2009). These data were used to create the ra_32MRSHLL_bot.tif raster dataset. Altitude raster files: 1. ra_32MRSHLL_top.tif : Altitude raster dataset of the top of the Marshall aquifer. The altitude values are in meters reference to NAVD88 vertical datum. This raster was interpolated from the po_32MRSHLL_top.shp point dataset. 2. ra_32MRSHLL_bot.tif: Altitude raster dataset of the bottom of the Marshall aquifer. The altitude values are in meters reference to NAVD88 vertical datum. This raster was interpolated from the po_32MRSHLL_bot.shp point dataset. Depth raster files: 1. rd_32MRSHLL_top.tif: Depth raster dataset of the top of the Marshall aquifer. The depth values are in meters below land-surface (NED, 100-meter). 2. rd_32MRSHLL_bot.tif: Depth raster dataset of the bottom of the Marshall aquifer. The depth values are in meters below land-surface (NED, 100-meter).

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://ddi.doi.gov/usgs-data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-65eb6be4d34e14033297e0dc
metadata_type geospatial
modified 2024-09-23T00:00:00Z
old-spatial -86.8018, 41.7250, -82.4579, 44.9498
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 745c9a44e762f54a926d87546d4d0fabca95f23a9b81e05a1f9bf152a8890c13
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-86.8018, 41.7250], [-86.8018, 44.9498], [ -82.4579, 44.9498], [ -82.4579, 41.7250], [-86.8018, 41.7250]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • aquifer-altitude
  • aquifer-depth
  • aquifer-extent
  • aquifers
  • geoscientificinformation
  • groundwater
  • hydrogeology
  • inlandwaters
  • marshall-aquifer
  • marshall-sandstone
  • mathematical-modeling
  • michigan
  • midwest
  • usgs-65eb6be4d34e14033297e0dc
isopen False
license_id notspecified
license_title License not specified
maintainer Nebraska Water Science Center
maintainer_email dc_ne@usgs.gov
metadata_created 2025-09-23T16:55:41.553572
metadata_modified 2025-09-23T16:55:41.553582
notes The Marshall aquifer underlies much of the Lower Peninsula of Michigan and has a maximum thickness of 493 feet (Lampe, 2009). The aquifer consists mainly of medium-grained sandstone and is overlain by Pennsylvanian-age rocks and glacial deposits and underlain by the Devonian-Mississippian-age confining unit. The Marshall aquifer is one of the most productive aquifers in the state where unconfined conditions occur (HA 730-J). This product provides source data for the Marshall aquifer framework, including: Extent shapefiles: 1. p_32MRSHLL.shp: Polygon shapefile containing the areal extent of the Marshall aquifer (32MRSHLL_AqExtent). The extent file contains no aquifer subunits. Point shapefiles: 1. po_32MRSHLL_top.shp: Point dataset containing altitude values, in feet reference to North American Vertical Datum of 1988 (NAVD88), across the top of the Marshall aquifer (Lampe, 2009). These data were used to create the ra_32MRSHLL_top.tif raster dataset. 2. po_32MRSHLL_bot.shp: Point dataset containing altitude values, in feet reference to NAVD88, across the bottom of the Marshall aquifer (Lampe, 2009). These data were used to create the ra_32MRSHLL_bot.tif raster dataset. Altitude raster files: 1. ra_32MRSHLL_top.tif : Altitude raster dataset of the top of the Marshall aquifer. The altitude values are in meters reference to NAVD88 vertical datum. This raster was interpolated from the po_32MRSHLL_top.shp point dataset. 2. ra_32MRSHLL_bot.tif: Altitude raster dataset of the bottom of the Marshall aquifer. The altitude values are in meters reference to NAVD88 vertical datum. This raster was interpolated from the po_32MRSHLL_bot.shp point dataset. Depth raster files: 1. rd_32MRSHLL_top.tif: Depth raster dataset of the top of the Marshall aquifer. The depth values are in meters below land-surface (NED, 100-meter). 2. rd_32MRSHLL_bot.tif: Depth raster dataset of the bottom of the Marshall aquifer. The depth values are in meters below land-surface (NED, 100-meter).
num_resources 2
num_tags 22
title Aquifer framework datasets used to represent the Marshall aquifer, Michigan