Geography homework help

  1. Explain porosity and permeability. What sorts of rocks or sediments are porous? What sorts of rocks or sediments are permeable? (2-3 sentences)
  2. How does an oxbow lake form? (2-3 sentences)
  3. Name an example of a real-world present-day location where one would expect to find A) Decompression melting B) Flux melting C) How does flux melting and decompression melting cause rocks to melt? What feature of the rock changes during these two processes? (1-2 sentences)
  4. Why do mountain rivers form V-shaped valleys and straight channels? (1-2 sentences)
  5. Deltas, alluvial fans, and point bars are all places where river sediments are deposited. Why are sediments deposited in these places? What feature of the river causes sediment to be deposited in these places? (2-3 sentences)
  6. Explain some of the differences between mafic and felsic igneous rocks. Be sure to mention properties other than color. (2-3 sentences).
  7. Give an example of an igneous rock and two sedimentary rocks that would form in a deep ocean (abyssal) environment. Explain why each of those rocks can be found forming in the deep ocean. (2-3 sentences)
  8. How do caves form? What is the most common cave forming rock type? How do the speleothems in caves (e.g. stalagmites and stalactites) form? (2-4 sentences)
  9. What are some geologic features of glacial landscapes that might be preserved in the geologic record? What evidence might glaciers leave behind? (2-3 sentences)

 

Last Updated on March 20, 2020

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