Page under constuction

• Disputed for at least the last 35 years
  
• Models have developed over time with advances in other fields of geology
  
• Main dispute is in whether or not the Franciscan was deposited in place
  
• Traditional model calls for subduction of oceanic plate with North American plate
  
• Franciscan represents an accretionary wedge in part of a subduction zone that made Sierra Nevada mountains to the east