8. A geologist is studying a section of sedimentary rock layers that have been newly exposed by a landslide. Based on what principle, the geologist would assume that the layers increased in age as they looked at them from top to bottom.
A. unitarianism
B. Principle of Superposition*****
C. Principle of Original Horizontality
D. Principle of Faunal Succession
I think it is B...?
9. True or False: Using the principles presented in this lesson, Geologists can make assumptions about the absolute ages of sedimentary rock layer to construct times lines of events in the geologic record found in the rocks.
A. True ******
B. False
I think it is true - but I am concerned about absolute and relative aging??
Thank you in advance
I need the answers
yo I got the answers for all but the essay questions
2. D
3. B
4. A
5. C
6. Assumption
7. True
8. Principle of Superposition
9. False
2. D
3. B
4. A
5. C
6. assumption
7. True
8. Principle of Superposition
9. False
For question 8, you are correct. The principle that the geologist would use to assume that the layers increased in age from top to bottom is the Principle of Superposition (answer B). This principle states that in an undisturbed sequence of sedimentary rock layers, the youngest layers are at the top and the oldest layers are at the bottom.
For question 9, you are also correct. Geologists can make assumptions about the absolute ages of sedimentary rock layers to construct timelines of events in the geologic record found in the rocks (answer A). While absolute dating techniques are used to determine the exact age of rocks, the principles of relative dating, such as the Principle of Superposition, can be used to determine the relative order of events and create a general timeline of the geologic record.