Skip to main content

Quaternary Geologic Map of the Lake Superior 4� x 6� Quadrangle,United States and Canada

Dates

Publication Date
Start Date
1978
End Date
1980
File Modification Date
2013-05-16 14:06:23

Summary

The Quaternary Geologic Map of the Lake Superior 4� x 6� Quadranglewas mapped as part of the Quaternary Geologic Atlas of the United States.The atlas was begun as an effort to depict the areal distribution ofsurficial geologic deposits and other materials that accumulated orformed during the past 2+ million years, the period that includes allactivities of the human species. These materials are at the surface ofthe earth. They make up the "ground" on which we walk, the "dirt" inwhich we dig foundations, and the "soil" in which we grow crops. Mostof our human activity is related in one way or another to these surfacematerials that are referred to collectively by many geologists asregolith, the mantle of fragmental and generally unconsolidated [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

metadata.xml
Potential Metadata Source

View
29.9 KB application/fgdc+xml

Purpose

In recent years, surficial deposits and materials have become thefocus of much interest by scientists, environmentalists, governmentalagencies, and the general public. They are the foundations ofecosystems, the materials that support plant growth and animalhabitat, and the materials through which travels much of the waterrequired for our agriculture, our industry, and our general wellbeing. They also are materials that easily can become contaminatedby pesticides, fertilizers, and toxic wastes. In this context, thevalue of the surficial geologic map is evidentThe description of map units and sources of information areboth included as text files.
Reduced-size image of the entire map sheet; 450x350 pixels 32-bit RGB truecolor, 82k bytes.
Reduced-size image of the entire map sheet; 450x350 pixels 32-bit RGB truecolor, 82k bytes.

Map

Tags

Theme
Place

Provenance

Data source
Link Processing
Added to Sciencebase on Sat Nov 16 13:16:35 MST 2013 by processing URL <b>metadata.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/4f4e4771e4b07f02db47e1e3">https://www.sciencebase.gov/catalog/item/4f4e4771e4b07f02db47e1e3</a> <br />

Additional Information

Identifiers

Type Scheme Key
processingUrl http://sciencebase.org/metadata/geo-nsdi.er.usgs.gov/metadata/map-i/1420/NL-16/metadata.xml

Item Actions

View Item as ...

Save Item as ...

View Item...