Gold in the Black Hills South Dakota and How New Deposits Might be Found

by

James J. Norton

US Geological Survey Circular 699

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• Abstract
• Introduction
• • Acknowledgements
• Geologic Setting
• • Precambrian Rocks
  • Paleozoic and Mesozoic Rocks
  • Cenezoic Rocks
• Production
• Types of Gold Deposits
• • Homestake Deposit
  • Other Deposits in Iron-Formation
  • Gold Quartz Veins
  • Deposits in Basal Conglomerate of Deadwood Formation
  • Replacement Deposits in Deadwood Formation
  • Deposits in Pahasapa Limestone
  • Deposits in Tertiary Rocks
  • Quaternary and Tertiary Placer Deposits
• Proposed approach to Exploration
• Exploration Target Areas
• • Area north of Lead
  • Portland and Ruby Basin Region
  • Rockerville Area
• References Cited