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Cross Section Help

Cross Section Help. Considerations when preparing your cross section product. Two ways of looking at Earth’s layers: chemical properties (what minerals are there) physical properties (how the minerals behave: solid, liquid, etc.). Earth’s Interior. Crust (1 and 2) ex: granite and basalt

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Cross Section Help

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  1. Cross Section Help Considerations when preparing your cross section product

  2. Two ways of looking at Earth’s layers: chemical properties (what minerals are there) physical properties (how the minerals behave: solid, liquid, etc.) Earth’s Interior

  3. Crust (1 and 2) ex: granite and basalt Mantle (3 and 4) more presence of iron and magnesium Core (5 and 6) mostly iron, other metals Earth’s Interior, Chemically

  4. Lithosphere (1, 2, and upper 3) rigid, the so-called “plates” Asthenosphere (lower 3) partially molten, can flow over long periods Earth’s Interior, Physically

  5. Picking Your Boundary

  6. Picking Your Boundary (ctd.) • Must be convergent or divergent, in your region. Maximum variety encouraged. • For convergent, is it… • Continental-continental • Continental-oceanic • Oceanic-oceanic • For divergent, is it… • Continental-continental • Oceanic-oceanic

  7. More Information = Better • Plate Names and Interaction Type • Directions of movement (NSEW) • Layers of Earth • Lithosphere and asthenosphere • Crust and mantle • Oceanic? • Continental? • APPROX. to scale • Core not necessary • Named Geologic Features • Volcanic arcs or single volcanoes • Magma intrusions below • Trenches • Rift valleys • Ocean ridges • Mountain Ranges • ANY OTHER INTERESTING STUFF

  8. Look again – What to add?

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