CONTOUR MAP

Objective:

  1. Draw a geological cross-section along XY.
  2. Find vertical and true thickness of beds.

Pre-requisites:

Topographic map


 Description True Thickness: It is the orthogonal thickness of a structure or bed, measured at right angles to its surface.

Apparent Thickness: The apparent thickness is equal to the true thickness only when the attitude of the unit is horizontal.

Both ends of the pipe must be trimmed to ensure parallel faces.

Both ends of the pipe must be trimmed to ensure parallel faces.