Geology and Ore Deposits of the Garfield Quadrangle, Colorado. Geological Survey Professional Paper 289

• Abstract
• Introduction
• General geology
• • Pre-Cambrian rocks
  • • Schists and gneisses
    • • Quartz-mica schist
      • Quartz-hornblende schist
      • Quartz-hornblende gneiss
      • Granite gneiss
  • Gneissic granite
  • Pikes Peak granite
  • Hornblende diorite
  • Silver Plume (?) granite
• Paleozoic sedimentary rocks
• • Sawatch quartzite
  • Manitou dolomite
  • Harding quartzite
  • Fremont dolomite
  • Chaffee formation
  • Leadville limestone
  • Belden shale and Minturn formation
• Mesozoic sedimentary rocks
• • Morrison formation
  • Dakota sandstone
  • Mancos shale
• Tertiary intrusive rocks
• • Quartz diorite porphyry
  • Tincup quartz monzonite porphyry
  • Rhyolite
  • Quartz diorite
  • Gneissic quartz monzonite
  • Mount Pomeroy quartz monzonite
  • Andesite Mount Princeton quartz monzonite
  • Monzonitic and Iatitic dikes
  • Rhyolitic dikesKersantite dikes
  • Mount Antero granite
  • Quartz latite porphyry
  • Mount Aetna quartz monzonite porphyry
  • Origin and interrelations of the intrusive rocks
• Tertiary extrusive rocks and tuff
• • Volcanic breccia
  • Flow breccia
  • Water-laid tuff
• Age of igneous rocks
• Quaternary deposits
• • Glacial moraine
  • Glaciofluvial deposits
  • Landslides
  • Talus
  • Alluvium
• Structure
• • Structure of the pre-Cambrian rocks
  • Structure of the Paleozoic and Mesozoic rocks
  • • Folds
    • Faults
    • • Tincup-Morning Glim fault zone
      • Quartz Creek graben
      • Faults of the Bald Mountain area
      • Faults of the Garfield region
  • Structure of the Tertiary rocks
• Structural control of the Tertiary intrusive bodies
• Chronology of main periods of Late Cretaceous and
• • Tertiary faulting and intrusion
• Contact metamorphism
• Ore deposits
• • Location of mining districts
  • History of mining
  • Production
  • Ore bodies
  • • Replacement deposits
    • Vein deposits
    • • Pyritic quartz veins
      • Hubnerite-molybdenite veins
      • Quartz-fluorite veins
      • Quartz-beryl-pyrite veins _
  • Zoning of the ore deposits
  • Structural and stratigraphic control
• Beryl in pegmatite, granite, and greisen
• Origin and relative ages of mineralization
• Mines and prospects
• • Tincup mining district
  • • Chief economic and geologic features
    • Gold Cup mine
    • Other mines and prospects
    • • Blistered Horn tunnel
      • Cumberland
      • Deacon
      • Drew
      • El Capitan
      • Indiana
      • Jimmy Mack
      • Napoleon
      • National
      • Robert E. Lee
      • Robert E. Lee No. 2
      • Silver Cup
      • Sylvan Dell
      • Tincup
      • West Gold Hill
  • Quartz Creek mining district
  • • Chief economic and geologic features
    • Graphite mines
    • Maid of Athens mine
    • Silent Friend mine
    • Other mines and prospects
    • • Ben Franklin
      • Bon Ton
      • Citizen
      • Complex
      • Emma H
      • Fluorspar Lode
      • Hubnerite Lode
      • Ida May
      • Lady Franklin
      • Mammoth
      • Molybdenite
      • Morning Glory
      • Occident
      • Porcupine
• Tomichi mining district
• • Chief economic and geologic features
  • Akron mine
  • Erie mine
  • Eureka-Nest Egg mine
  • May, Mazeppa, and W. and A. mines
  • Morning Star mine
  • North Star mine
  • Spar Copper mine
  • Tenderfoot mine
  • Victor mine
  • West Point mine
• Other mines and prospects
• • Alwilda tunnel
  • Annie Hudson
  • Ben Bolt
  • Bill Short
  • Breadwinner
  • Congress tunnel
  • David H
  • Day Star
  • Defiance
  • Denver City
  • Fort Scott
  • Hiawatha
  • Iron King
  • Isabel
  • Legal Tender
  • Lewiston-Pet
  • Lilly
  • Magna Charta tunnel
  • Maid of Erin-Silver Pick
  • Princeton tunnel
  • Silver Cord
  • Silver Dollar (Alice)
• Monarch mining district
• • Chief economic and geologic features
  • Garfield mine
  • Madonna mine
  • Other mines and prospects
  • • Alaska
    • Alpha
    • April Fool
    • Ben Hill
    • Beta
    • Black Tiger
    • Bonnie Belle
    • Brighton
    • Clinton
    • Columbus
    • Darling
    • D' Byron
    • Delaware
    • Desdemona
    • Eclipse Evening Star
    • Exchequer
    • Golden Age Gulch
    • Hawkeye
    • Hercules
    • Indianapolis
    • Ingersoll
    • Iron Duke
    • Jewell tunnel
    • Last Chance
    • Lilly
    • Little Orphan Annie
    • Macedonian
    • Major
    • Marshall tunnel
    • Mason
    • Maverick tunnel
    • May Queen
    • Michigan group
    • Missouri Boy
    • Mohammed
    • Monarch Contact
    • Moose
    • Moss Flower (Half Moon)
    • Mountain Chief
    • Neglected
    • New York
    • Page
    • Paymaster
    • Pride of the West
    • Rainbow-Eagle Bird
    • Shamrock
    • Silent Friend
    • Song Bird
    • Stemwinder
    • Thirty-six-thirty

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