How is the slate formation like?
Therefore, the inclination of the formation is the angle between the upper layer (trace) and the horizontal (traces) of the profile of the vertical rock.
The trend is 90 ° apart from the tendency. The angle between the sloping line of the rock and its horizontal projection line is the (true) inclination of the formation
The vertical direction of the line along the inclined layer to the bottom of the straight line for the rock slant line, tilt the horizontal projection line refers to the direction of the tilt direction is the tendency of the rock.
