4. this map is of an area with level topography. map scale is 1: 100,000. a. label all axial traces on the map with proper symbols (e-g. anticline, syncline) b. construct a geological cross section along a-a'. (remember to assume equal thickness of ) c. which rock unit is the oldest in the map area? which is youngest? 7o .. .: / x /.×トa" fossiliferous limestone limestone sandstoneshale 969conglomerate