Question 1

Which rock unit is most likely to have undergone regional metamorphism?

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Which rock unit is most likely to...

Question 2

Examine the geological cross-section and describe the order of all the geological events that can be depicted from this image. Don't limit yourself to merely the lettered rock units; include episodes of folding and erosion, too. Use descriptive geologic verbs like "deposition" and "intrusion" rather than simply saying the "rock unit J was formed."

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Examine the geological cross-section and describe...

Question 3

If numerical dating of rock unit A gave a crystallization age of 1.2 billion years, and numerical dating of rock unit F gave a crystallization age of 500 million years, then how old is rock unit E?

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If numerical dating of rock unit...

Question 4

Is rock unit F likely to be sedimentary, metamorphic, or igneous?

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Is rock unit F likely to...

Question 5

Is rock unit D likely to be sedimentary, metamorphic, or igneous?

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Is rock unit D likely to...

Question 6

What is the sense of offset on fault G?

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What is the sense of offset...

Question 7

How would you figure out if rock unit A or rock unit D formed first, or if they coincided?

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How would you figure out if...

Question 8

Is there any way to say for sure whether rock unit A or rock unit D is older? Why or why not?

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Is there any way to say...

Question 9

Examine the geologic timescale shown here. Which is the longest-lasting period of geologic time? Which is the shortest period? Why should these periods differ so much in their durations?

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Examine the geologic timescale shown here....

Question 10

Match between columns
                        Premises:  fossil poop
 a fossil organism that is restricted to a certain brief stretch of geologic time, but was widespread and abundant during its time on Earth
 the notion that we can understand the geologic past by focusing on present day processes and physical laws; geologic change may be slow or gradual
 a group of fossils that co-existed at the same time. Their overlapping ranges can help constrain the age of a rock unit that contains them
 fossil tree sap
 the defunct notion that the Earth is only a few thousand years old, and that all geologic change is accomplished rapidly through violent events
 indirect evidence of ancient life, such as footprints, bite marks, and gastroliths
 the remains or traces of ancient life

Accepted Answer

The Answer of catastrophism and fossil and amber and fossil is...

Quiz 8: Geologic Time