Geology -Essay

1) What is an unconformity? Name and describe one type. What evidence could be used to identify this type of unconformity? This is, if one were studying an outcrop, and looking at the layers of rock, what information could she use to determine that an unconformity is present?
2) Describe at least two mechanisms capable of producing isostatic uplift and provide a "real-world" example for each. That is, describe an actual geological scenario in which this type of uplift is likely to occur.
3) What’s the difference between faults and joints? Briefly describe a geological process capable of forming each.
4) By looking at a series of synclines and anticlines in an outcrop, it can be tough to tell if the folds are plunging or not. At Earth’s surface, however, plunging folds become readily apparent. What visual surface clues make plunging folds obvious?
5) Draw a schematic of a normal fault. Your drawing should clearly indicate and label (using the terminology from class) the sense of stress and the relative motion along the fault surface. Also specify which type of tectonic boundary produces this kind of fault and provide a real-world example of where this type of fault can be found. (Note: you may use any software you like to make the drawing, or you may even draw it by hand and scan it in.)
6) What is the relationship between rocks and minerals? List at least three components of the definition we discussed for the word mineral.

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