Exercise 2 relative and absolute dating of geologic events answers


07-Apr-2019 07:44

Notice that the rock layers are each labeled with several letters.Each rock layer was deposited at a different geologic time.Include all the events which can be inferred from the drawing.List which relative dating principles apply to the order of each event.

exercise 2 relative and absolute dating of geologic events answers-73

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Remember when we drew a topographic profile for lab manual exercise #1 (page 18) on Topographic Maps?Question 2: What is the sequence of events that can be inferred from the above cross-section?The two intrusions are labeled as X and Z; the surrounding rock (called the "country rock") is labeled as D.The various sedimentary layers are labeled as B, E, K and W.

exercise 2 relative and absolute dating of geologic events answers-89

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The timing of the fault (break) in the rocks (labeled as Q) must be included in the sequence of events.

We will learn more about this method of identifying rock units and geologic time periods in next week's lab.