main fault vein

Approximately planar vein filled with pseu-dotachylyte and thought to be the site of a fault where pseudotachylyte was generated by frictional heating

Related terms:

• generation surface
• fault vein
• injection vein
• antitaxial vein
• contact vein
• segregated vein
• fault plane
• composite vein
• main thermocline
• Vein