Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: geology Remove constraint geology Subject Geoscientific Information Remove constraint Subject: Geoscientific Information Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1.
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...

2.
C-07 Geologic atlas of Ramsey County, Minnesota

C-07 Geologic atlas of Ramsey County, Minnesota

1992. Meyer, G.N and Minnesota Geological Survey. 10 pls. Scale 1:48,000 and smaller. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, bedrock topography and Quaternary st...

3.
C-04 Geologic atlas of Hennepin County, Minnesota

C-04 Geologic atlas of Hennepin County, Minnesota

1989. Balaban, N.H and Minnesota Geological Survey. 9 pls. Scale 1:100,000 and smaller. Pl. 1, data-base; pl. 2, bedrock geology, pl. 3, surficial geology; pl. 4, bedrock topography and depth to bedr...

4.
C-06 Geologic atlas of Dakota County, Minnesota

C-06 Geologic atlas of Dakota County, Minnesota

1990. Balaban, N.H and Minnesota Geological Survey. 9 pls. Scale 1:100,000 and smaller. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, depth to bedrock and bedrock topogra...

5.
C-08 Geologic atlas of Fillmore County, Minnesota [Parts A and C]

C-08 Geologic atlas of Fillmore County, Minnesota [Parts A and C]

1995. Mossler, J.H and Minnesota Geological Survey. 5 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, depth to bedrock and bedrock topography; pl. 5, ...

6.
C-09 Geologic atlas of Rice County, Minnesota [Part A]

C-09 Geologic atlas of Rice County, Minnesota [Part A]

1995. Hobbs, H.C and Minnesota Geological Survey. 6 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, Quaternary stratigraphy; pl. 5, depth to bedrock...

7.
C-11 Geologic atlas of Mower County, Minnesota [Part A]

C-11 Geologic atlas of Mower County, Minnesota [Part A]

1998. Mossler, J.H and Minnesota Geological Survey. 6 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, depth to the pre-Cretaceous bedrock surface and ...

8.
C-10 Geologic Atlas of Stearns County, Minnesota [Parts A and C]

C-10 Geologic Atlas of Stearns County, Minnesota [Parts A and C]

1995. Meyer, G.N and Minnesota Geological Survey. 7 pls. Scales 1:100,000 and 1:200,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, Quaternary stratigraphy; pl. 5, d...

9.
C-12 Geologic atlas of Goodhue County, Minnesota [Part A]

C-12 Geologic atlas of Goodhue County, Minnesota [Part A]

1998. Setterholm, D.R and Minnesota Geological Survey. 6 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology and thickness of Quaternary sediments; pl. 4, Quaternary...

10.
Ecological Sections: Minnesota

Ecological Sections: Minnesota

1999. Minnesota Department of Natural Resources (DNR). This coverage provides information for all three levels of the Ecological Classification System (ECS): Provinces, Sections, and Subsections. The b...

11.
Vector Created with Sketch.

Late Wisconsinan Glacial Border 1:100,000

1995. Pennsylvania Department of Conservation and Natural Resources. Late in 1994, the Pennsylvania Bureau of Topographic and Geologic Survey was asked to develop a digital physiographic provinces map at 1:100,000 sc...

12.
Vector Created with Sketch.

Late Wisconsinan Glacial Border 1:500,000

1995. Pennsylvania Department of Conservation and Natural Resources. Late in 1994, the Pennsylvania Bureau of Topographic and Geologic Survey was asked to develop a digital physiographic provinces map at 1:100,000 sc...

13.
Vector Created with Sketch.

Physiographic Provinces 1:500,000: Pennsylvania

1995. Pennsylvania Department of Conservation and Natural Resources. Late in 1994, the Pennsylvania Bureau of Topographic and Geologic Survey was asked to develop a digital physiographic provinces map at 1:100,000 sc...

14.
Mixed

Potential of Agricultural Chemical Contamination of Aquifers, 2004: Illinois

1995. Donald A. Keefer, and Illinois State Geological Survey. This is a statewide SDE feature dataset for evaluating the potential for contamination of shallow aquifers by pesticides and nitrate. The sources o...