Name: Quaternary geology

Display Field: Value

Type: Raster Layer

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Description: The quaternary geology layer was compiled from the USGS quaternary geologic atlas of the United States by quadrangle. The quadrangles used for this layer include NM-15, NM-16, NL-15, NL-16, NL-17, NL-18, NK-16, NK-17, and NK-18. 17 high level, common classes were defined and all quaternary types were assigned to the common classes. The common clases include: artifical till; coarse-textured, medium-textured, and fine-textured glacial till; dune sand; end moraines of coarse-textured, medium-textured, and fine-textured till; exposed bedrock surfaces; glacial outwash sand/gravel & postglacial alluvium; ice-contact outwash sand and gravel; lacustrine clay and silt; lacustrine sand and gravel; peat and muck; postglacial alluvium; thin to discontinuous glacial till over bedrock; and water. The layer was dissovled by common class name and attributed to the GLAHF project 30 m spatial grid.

Service Item Id: f7f03522f27d47e08046bbdf22da2db2

Copyright Text: 1) USGS, 1990s. Quaternary Geologic Atlas of the United States. (http://gec.cr.usgs.gov/data/quatatlas/index.shtml). Last accessed: August 15, 2014. 2) The Great Lakes Aquatic Habitat Framework (GLAHF) project has been funded by the Great Lakes Fishery Trust and lead by the University of Michigan School of Natural Resources and Environment, with partners from Michigan Department of Natural Resources-Institute for Fisheries Research, NOAA Great Lakes Environmental Research Laboratory, International Joint Commission, Michigan State University, The Nature Conservancy, Ontario Ministry of Natural Resources, University of Minnesota-Duluth, U.S. Fish & Wildlife Service, U.S. Geological Survey and many collaborating partners in both the USA and Canada. More information about this project can be found at http://ifr.snre.umich.edu/projects/glahf/.

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YMin: 4749124.742568786
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Spatial Reference: 102100  (3857)

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