melting and the geological processes


For project 2, please provide short answers for the following:

  • Briefly describe the processes that lead to the formation of igneous, sedimentary, and metamorphic rocks
  • Explain partial melting and the geological processes that lead to melting
  • Describe, in general terms, the range of chemical compositions of magmas
  • Discuss the processes that take place during the cooling and crystallization of magma, and the typical order of crystallization according to the Bowen reaction series
  • Explain how magma composition can be changed by fractional crystallization and partial melting of the surrounding rocks
  • Apply the criteria for igneous rock classification based on mineral proportions
  • Describe the origins of phaneritic, porphyritic, and pegmatitic textures
  • Explain the relationships between plate tectonics, the formation of magma, and volcanism
  • Describe the range of magma compositions formed in differing tectonic environments, and discuss the relationship between magma composition (and gas content) and eruption style
  • Briefly identify the types of hazards posed to people and to infrastructure by the different types of volcanic eruptions

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