Don't Panic Geocast

What is a geologic map? Conveys many sorts of geologic information The whole basis of field geology Can be a surface,bedrock, subsurface, resource, soil, etc. map Making the Map Start off with your field gear…like we talked about in episode 2. We said episode 1 in the show, but that was wrong! Have a base map (Geomorphologic map—we call these topos)…you need to know where you are at You can use an iPad/GPS with pre-loaded topo maps, or you just have your paper basemap. John likes the Garmin 62S GPS unit You don’t want to become too reliant technology in the field because it could be a life or death situation You need to have done your research before you go History of geologic maps Book: The map that changed the world, by Simon Winchester 1793 William Smith (http://en.wikipedia.org/wiki/William_Smith_(geologist), who was a surveyor working for canal builders, was paying attention to all the layers of rock that he was digging through He noticed that he could trace the different layers of rock that were st