Answer: hading

AnswerCrossword Clue
hadingthe inclination of a vein or seam from the vertical
hading(of a fault, vein, or seam) to incline from a vertical position
hadingthe angle between a fault plane and the vertical, measured perpendicular to the strike of the fault; complement of the dip
hadingHADE, to incline (to slant (to deviate from the horizontal or vertical))