Metadata: S-21 Geologic Map of Minnesota-Bedrock Geology

S-21 Geologic Map of Minnesota-Bedrock Geology

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  1. Overview
  2. Data Quality
  3. Data Organization
  4. Coordinate System
  5. Attributes
  6. Distribution - Get Data
  7. Metadata Reference

Section 1: Overview

Originator:Minnesota Geological Survey

Title: S-21 Geologic Map of Minnesota-Bedrock Geology

Abstract: scale 1:500,000. For additional data see: ( [select, copy and paste into browser]) which contains files associated with Bedrock Topography, Depth to Bedrock, and locations of Outcrop and Geochronologic analyses.

This map is a new construct that incorporates existing geologic maps where prior mappers had adequate ground control, and new interpretations based on drill hole, geophysical, and unpublished data where they did not. The interpretation differs significantly from previous maps to reflect new data and accommodate scale. It portrays our current geologic understanding of the temporal and geographic distribution of units within major Precambrian terranes and of the Phanerozoic strata. The western part of the mapped Precambrian terrane is inferred largely from geophysical maps, anchored locally by drilling. In many places, contacts are drawn between units of the same or similar apparent rock type (and same unit label); these are recognized as geometrically distinct, though geophysically or lithologically similar. Digital files corresponding to this map allow removal of Cretaceous, Paleozoic, and some parts of Mesoproterozoic strata to reveal an interpretation of the underlying Precambrian bedrock.


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Contact Person Information: Richard Lively, Geologic Information Scientist
Minnesota Geological Survey

Phone: 612-626-3103

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Section 2: Data Quality

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Section 3: Spatial Data Organization (not used in this metadata)

Section 4: Coordinate System

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Section 5: Attributes


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Section 6: Distribution

Publisher: Minnesota Geological Survey

Publication Date: 2011

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Section 7: Metadata Reference

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