Folds

• Upright Fold


  Axial plane is vertical or near vertical
• Inclined Fold


  Axial plane dips between 10 - 80
• Recumbent Fold


  Axial plane is horizontal (one limb is overturned)
• Gentle Fold


  120 - 180
• Open Fold


  70 - 120
• Closed Fold


  30 - 70
• Tight Fold


  0 - 30
• Isoclinal Fold


  Limbs are parallel