create a cross section for X-Y create a cross section based on the red line 2. The map below is slightly more complicated situation in an area of different rock types, but still similar to those you've just seen in the previous example. Construct a structure section across line A-A' and then answer the questions. Fossilferous Limestone Horizontal Sandstone Conglomerate bedding 40 Dip of bedding Limestone Granodiorite -100 L Land contours at 100m intervals Shale Granite Rock unit boundary Contact metamorphism Dolerite Mudstone.