no additional information provided PART 2, EXERCISE B - Stratum contours from outcrop traces This map shows the outcrop pattern for a deformed sedimentary layer. The stippling denotes the map region where one finds rocks underlain by layer at the surface, and the continuous dark line gives the trace of the bottom of the bed. In unstippled areas, the bottom of the bed was eroded away. 1. Draw and label stratum contours for the base of the layer. 2. Use the stratum contours to determine whether the structure represented on the map is an anticline, syncline, plunging anticline, etc. Neatly label the structure on the top of the map!.