lab2maps

lab2maps - Geol 105 Lab 2: Maps Week of Jan. 23-27, 2012...

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Unformatted text preview: Geol 105 Lab 2: Maps Week of Jan. 23-27, 2012 Maps, once we learn their language, tell us wonderful stories. They represent one way that geologists (and geographers, astronomers, pirates, explorers, and many others) can record and share both spatial and temporal data. Today maps have a wide variety of forms ranging from simple topographic maps to geologic maps, to three-dimensional DEMs (digital elevation models), to radar images collected by satellites and to the LIVE Google Earth Mapping Service. For example, one of the ways we learn more about the different planets is to compare radar images of their surfaces. Can we see similar patterns to those on earth? In fact temporally changing computer images, or movies, can also be considered maps, as can aerial photos and other types of pictures. For this lab, lets not only get familiar with some relatively simple types of maps but also explore the cutting edge technology of Google Earth. This week we will begin to learn the language of topographic and geologic maps. While learning their language, dont forget to look for their story and hopefully to find their hidden treasures! Basic map skills/concepts - read lab manual Latitude & longitude p. 197 Fig. 9.1 Scale p. 201-202 Contour lines p. 207-211 Topo map symbols p. 200 Relief & Gradient p. 212 Complete the exercises (as assigned by your T.A.) in your Lab Manual be sure you understand the basic concepts! A Geologic mystery in the Grand Canyon your assignment Ranger Anna Goldsworth always wanted to be a detective. But she also loved the wilderness and rocks. The solution? She became a Park ranger in the Grand Canyon National Monument specializing in forensic geology. She has just received word that a group of General Education geology students have disappeared after leaving on a rafting trip. Help Ranger Goldsworth solve the mystery of the missing students. The Ranger has been told that the students probably ended up in one of two areas based on their last faint radio message. She has the following Grand Canyon Maps available from these two areas: Map A- topo map, scale 1:48000 Map B- 3-D map with glasses, scale 1:300000 (Check it out. This is cool!). This map includes the area of Map A. Map C- Geologic Map - scale 1:48000 (notice that Map C is the area between the two red dots on Map B) Map D- Plastic Relief Model - scale is approx. same as geologic map. Google Earth Mapping Service Notice the relation of the maps on the next page. 1 of 8 Figure 1. Relationship between Maps 2 of 8 STEP A CONCEPT: MAP RELATIONSHIPS & VISUALIZING 3-D Use the poster Maps A and B Examine Figure 1 on page 2 showing the relation between the various maps....
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This note was uploaded on 04/02/2012 for the course GEOL 105 taught by Professor Platt,davis during the Spring '08 term at USC.

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lab2maps - Geol 105 Lab 2: Maps Week of Jan. 23-27, 2012...

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