SEAFARER Site Survey, Upper Michigan Region. Book 10. Bedrock Geologic Data.

Abstract

Most of the rocks within the Study Area are of Precambrian Age (more than 600 million years old). Since at least the mid-Paleozoic time, the area has been tectonically stable. Hard bare rock is exposed at the surface in relatively small areas, but a soil and glacial mantle ranging from a few to a few hundred feet thick overlies the bedrock throughout most of the area. A Bedrock Geologic Data Map has been compiled which gives the areal distribution of bedrock in the Study Area. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1976
Accession Number
ADA036418

Entities

Organizations

  • Sylvania Electric Products

Tags

DTIC Thesaurus Topics

  • Erosion
  • Geology
  • Groundwater
  • Igneous Rocks
  • Lake Superior
  • Metamorphic Rocks
  • Mineralogy
  • Minerals
  • Natural Resources
  • Ores
  • Phyllosilicates
  • Reliability
  • Rock Forming Minerals
  • Sedimentary Rocks
  • Sediments
  • Tectosilicates
  • Water

Fields of Study

  • Geology

Readers

  • Geotechnical Engineering.