Tool Marks


Stationary Tool Marks

Obstacle Marks

Moving Tool Marks


Stationary Tool Marks


Obstacle Marks


Moving Tool Marks

Groove Marks

Groove mark cast (originally made in a shale, subsequently infilled by a later turbidite sand (base shown).

 

Chevron Marks

 

 

Prod Marks

 

 

Bounce Marks

Brush Marks

Skip and Roll Marks