The Geology and Ore Deposits

of

Shoshone County, Idaho

by

Joseph Umpbley, E.L. Jones Jr.

USGS Bulletin No. 732

180 Pages

• Introduction
• Acknowledgments
• Location and extent of area
• History and production
• Ore reserves
• Topography
• General geology
• • Sedimentary rocks
  • • Prichard formation
    • Burke formation
    • Revett quartzite
    • St. Regis formation
    • Newland ("Wallace") formation
    • Striped Peak formation
  • Igneous rocks
  • Structure
  • • General features
    • Osburn fault
    • Placer Creek fault
    • Other faults
• Ore deposits
• • General character
  • Distribution
  • • Geographic distribution
    • Geologic distribution
  • General features of the ores
  • Mineralogy
  • Classification
  • Deposits in igneous rocks
  • Deposits in sedimentary rocks
  • • Disseminated deposits
    • • Copper
      • Sphalerite and galena
      • Pyrite
      • Siderite
    • Contact-metamorphic replacement deposits
    • • Geologic relations
      • Distribution and form
      • The ores
      • Metamorphic phenomena
    • Replacement deposits along fissures and fracture zones
    • • Lead-silver deposits
      • • Importance
      • Distribution
      • • Relation to rocks of different character
      • Characteristic features
      • • Mineralogy
        • Paragenesis of the primary ore minerals
        • Scope of descriptions
        • Lodes near Wardner
        • Lodes near Mullan
        • Lodes on Canyon Creek
        • Lodes on Xlnemlle Creek
        • Other lead-silver lodes of Shoshone County
        • • Pine Creek
          • Murray
          • Prichard Creek
          • Area east of Pottsville
          • Slate Creek
          • Placer Creek
          • Wallace and Wardner
    • Zinc deposits
    • • General features
      • Interstate-Callahan mine
      • Success mine
      • Rex mine
      • Helena-Frisco mine
      • Morning lode
      • Paragon groups
      • Murray Hill mine
      • Terrible Edith mine
      • Deposits of the Pine Creek district
    • Copper deposits
    • • Relation to rocks of different character
      • Form and distribution
      • Siderite veins lit
      • • Southern area
        • Deposits in diabase along St. Joe river
        • Veins north of Coeur d'Alene River
      • Disseminated deposits
      • • Snowstorm lode
        • National lode
        • Other deposits
      • Copper in lead-silver veins
      • Contact copper deposits
      • Brecciated zones in diabase
      • Relation of the copper deposits to other deposits in the
      • • Coeur d'Alene district
    • Antimony deposits
    • • Coeur d'Alene Antimony
      • Star Antimony
      • Pearson prospect
      • Hannibal group
    • Siderite deposits
  • Fissure fillings
  • • Gold deposits
    • • History and production
      • Distribution
      • Geologic relations and structural features
      • The ores
      • Relation of the gold veins to the other ore deposits
    • Tungsten deposits
  • Gradation between the several groups of deposits
  • Stages of mineralization
  • Paragenesis of the primary ore minerals
  • Oxidation products and their relations
  • Genesis of the deposits
  • • Periods of mineralization
    • Origin of the fissures
    • Source of the ores
    • The Success deposit
• Future of the Coeur d'Alene district
• Index

* This is digitally archived version in PDF format.  Upon purchase you will receive an email containing a link to download your item.