University of Maryland Structural Geology Questions Paper

Hello,

Need to answer the following question from reading chapter 3-4. short sentences answers. Just like you did previously.

• 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