Some Lode Deposits in the Northwestern Part of the Boise Basin Idaho

by Clyde P. Ross

Idaho Bureau of Mines and Geology

Bulletin 846-D

1933 - 74 Pages

Contents:

• Abstract
• Introduction
• • Scope of the report
  • Bibliography
  • Geologic summary
• Geology of the Quartzburg area
• • Petrography
  • • Granitic rock
    • Dike rocks
    • • Dacite porphyry
      • Rhyolite porphyry
      • Granite porphyry
      • Granophyre porphyry
      • Diabase
      • Diorite porphyry
  • Age of the dikes
  • Structure
• The mines
• • Gold Hill
  • Mayflower
  • Newburg
  • Bclshazzar
  • Mountain Chief
  • Blue Rock
  • Comeback
  • Mineral Mining Co
  • Missouri
• Types of mineralization
• Future of the area

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