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You searched for: geology Remove constraint geology Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1.
Bedrock geology

Bedrock geology

1970. Kingsbury, Robert C. and Hollingsworth, John M. Detached from: Kingsbury, Robert C. Atlas of Indiana, page 17. Scale approximately 2,150,000.

2.
Glacial geology.

Glacial geology.

1970. Kingsbury, Robert C. and Hollingsworth, John M. Shows outwash (lake and river sediments), end moraines, drift and un-glaciated bedrock Also shows Illinoian glacial boundary and Kansas glacial bou...

3.
Glacial geology of Indiana

Glacial geology of Indiana

1958. Wayne, William J.(William John), 1922-cartographer. Base modified from U.S. Geological Survey Base map of Indiana, 1953.; Reprinted with minor modifications, 1963. Scale 1:1,000,000.

7.
Map of Indiana showing bedrock geology

Map of Indiana showing bedrock geology

1970. Purcell, Roger L. Includes geological cross-section. Scale approximately 1:1,800,000. Adapted from Regional Geologic Map series, Indiana Geological Survey; drafted b...

8.
Geologic map of Minnesota, Quaternary geology, S-1

Geologic map of Minnesota, Quaternary geology, S-1

1982. Hobbs, Howard C. and Goebel, Joseph E. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...

13.
Mixed

Bedrock Geology of Illinois - Geologic Units, 2004

1996. Illinois State Geological Survey. This feature class shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the Geologic Map of...

18.
Geologic map of Minnesota, Hibbing sheet, bedrock geology

Geologic map of Minnesota, Hibbing sheet, bedrock geology

1970. Sims, Paul K., Morey, G.B., Ojakangas, Richard W., and Viswanathan, S. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Hibbing quadrangle, ...