Geomorphology and landforms

From GeoClasses

Contents 1 topography 2 Carol's topo maps: 1902 and present 3 discuss Hooke, 2000 reading 4 Frankel and Pazzaglia, 2006

topography

• map the auditorium topography
  • what would be the strike and dip of a bed that was resting on the edges of the risers (at an angle)?
  • in real geologic environments, you can't see the entire rock surface - you only get points of information where rocks are exposed (remember field trip).
    • if you only had a few random elevation points in this room, what kind of map would you have ended up with? What if all your points were along one riser?

Carol's topo maps: 1902 and present

• be able to identify major features on topographic maps
  • tie back to structures and terrains
• case studies for mass wasting?
  • topography before and after - if order new maps that correspond to Carol's old ones
  • what caused the event
  • stratigraphic columns to find weak layers

discuss Hooke, 2000 reading

• human influences on topography, erosion and deposition

Frankel and Pazzaglia, 2006

• go through Frankel and Pazzaglia, 2006 paper
• Taos Range: tectonically active, many landslides
• Sierra Nacimiento: erosionally exhumed, no landslides (once resistant beds were exposed by erosion, river incision is driven by the dropping of base level to the south)
  • see google maps here
    • east of Sierra Nacimiento site - Valle Caldera near Los Alamos (impact crater)
  • figure 9
    • what is Rva? figure 6
      • ratio of drainage basin volume to drainage basin area
  • figure 10