Skip to primary content
Skip to secondary content

Sierra Geology

where rocks meet the human environment (or vice versa)

Sierra Geology

Main menu

  • Home
  • Field Trips
    • Amador Central Railroad
  • Documents
    • 2013 GSA Cordilleran Conference Presentations
      • Early Tertiary Climate Change and its Impact on the Matrix Mineralogy of “auriferous gravels” in the Sierra Nevada Foothills
      • The Nature of Early Tertiary Soils and Sediments — Mineralogy and Petrology
      • Geologic Hazards in the Early Tertiary Sediments of the Sierra Nevada Foothills of California
      • Landslide Hazards Along the Interstate 80 Corridor Associated with the Early Oligocene Sedimentary and Volcanic Deposits in the Sierra Nevada
    • References
      • The Upper Reaches of the Sierra Nevada Auriferous Gold Channels
      • Geology of the Ione Formation in the Ione Area
      • A Historical Review Of The Age Assignments Applied To The Chalk Bluff Fossil Plant Assemblage, Central Sierra Nevada
      • Gold Bearing Gravels of the Ancestral Yuba River, Sierra Nevada
      • Re-evaluation of the origin of kaolinite in the Ione Formation
      • Geology and Ceramic Properties of the Ione Formation, Buena Vista Area
      • A Middle Eocene Flora From The Central Sierra Nevada
      • Origin of gold in placer deposits of the Sierra Nevada Foothills, California
      • The Ione Formation of California
    • Geologic hazards associated with Eocene and Oligocene Sedimentary Units in the Sierra Nevada Foothills
      • CGS Geologic Hazard Notice — Smectitic Sediments
  • Contact
  • About
  • Images
    • UC Davis Petrified Log Installation

Category Archives: Sierra History

Where did the bulk of the placer gold in Tertiary river sediments in California come from?…maybe Nevada!

Posted on March 24, 2016 by James Wood

This paper further expounds on this alternative theory of the origin of California placer gold is available here.

Christensen, Odin D., Christopher D.Henry, and Jim Wood, 2015, Origin of gold in placer deposits of the Sierra Nevada Foothills, California, Geological Society of Nevada Symposium 2015.

 

Posted in Early Tertiary auriferous gravels, Early Tertiary References, Early Tertiary tropical climate, Origin of Gold in California, Sierra History

Other Stuff

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org
Proudly powered by WordPress