WebThere are limited mappings available for the upper peninsula of Michigan. The store provides the following products: Surficial geologic map for 7.5 minutes USGS quadrangles; Surficial geologic maps of counties, Lower and Upper Peninsula of Michigan; Maps showing bedrock geology and topography of counties WebThe upper, or Napoleon Sandstone Member reaches its maximum thickness of 49 to 61 m in the southern part of the basin . Generally, the Marshall is sparsely fossiliferous, sometimes cross-bedded and rippled, very fine- to coarse-grained sandstone of buff, tan, or gray color. The Napoleon is predominantly a medium-grained sandstone with some ...
Lake Michigan Basin U.S. Geological Survey
WebIn addition, you can view the bedrock geologic formations that lie directly beneath the glacial sediments by turning on the Michigan Bedrock Geology layer. You can also explore where copper, gold and iron were historically mined in Michigan. Native Americans mined copper in Michigan's Upper Peninsula for thousands of years. WebSep 7, 2024 · Abstract. Observed ground-water-level declines from 1991 to 2003 in northern Monroe County, Michigan, are consistent with increased ground-water demands in the region. In 1991, the estimated ground-water use in the county was 20 million gallons per day, and 80 percent of this total was from quarry dewatering. In 2001, the estimated ground … gamblers chase
Michigan Basin - Wikipedia
Webproposed withdrawal by providing hydrogeologic data demonstrating the bedrock transmissivity for the formation or relying on published estimates of transmissivity for the bedrock formation. [Subsection 32706c(1)(b)] _____ If you need this information in an alternate format, contact . [email protected]. or call 800-662-9278. http://prod.lsa.umich.edu/earth/community-engagement/downloadable-resources/bedrock-geology-of-michigan/_jcr_content/par/download/file.res/Bedrock%20v7.pdf http://www.geo.mtu.edu/KeweenawGeoheritage/Glaciers/Welcome.html gamblers caves accrington