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Unconformities questions Unconformities In the cross section in Question 4, the

ID: 160182 • Letter: U

Question

Unconformities questions

Unconformities In the cross section in Question 4, the surface between A/B and D is called on unconformity. An unconformity in the rock record is typically a surface where there was erosion of the rocks. In which of the following environments is on unconformity most likely to form? Explain your reasoning. Why should your answers to Question 1 and Question 5 be the same? Change your answers as necessary. Use the cross section to the right to answer Questions 7-9. Draw a line along the unconformity in the cross section. How do you know there is an unconformity in the cross section? Describe three things that happened in the area to form the rocks in the cross section. A person says to you, "I don't believe that Earth is thousands of millions of years old because there should be more sedimentary rock layers if Earth is that old." What would you say to that person to tell them that their argument does not make sense?

Explanation / Answer

5 . C. Mountain

Because mountains are eroded by means of weathering.Erosion occurs instead of deposition leading to an unconfirmity.