* Select outcrop areas having representative fracture patterns for specific structural positions. Record [[strik]]e and [[dip]] data, or at least strike data. Additional sites can be chosen for one unit at different positions within the structure. | * Select outcrop areas having representative fracture patterns for specific structural positions. Record [[strik]]e and [[dip]] data, or at least strike data. Additional sites can be chosen for one unit at different positions within the structure. |