> Using the geologic map provided by your lab instructor, draw the geologic cross section that corresponds to the line X-Y on the figure below. Note that in this example, the cross section shows the topography, i.e. the elevation above sea level is shown as a black wavy line, rather than an arbitrary flat line. [Hint: start by marking the location of all the contacts on the line that denotes the topography. Refer to previous example. 1 What is the geologic structure at #1? Basin