Radiometric dating means placing events in their proper sequence

Within a sequence of rock layers formed at Earth’s surface, rock layers in the middle of a sequence are older.

Within a sequence of rock layers formed at Earth’s surface, rock layers higher in the sequence are older.

Relative age dating provides information about absolute ages but does not place rocks and events in chronological order.

Relative age dating places rocks and events in chronological order but does not provide information about absolute age.

that different assemblages of fossils indicate different geologic ages d. After much study you determine that there is a considerable span of time for which no sedimentary rock layer exists at this site. the time of crystallization of a mineral containing an isotope c. when the dated mineral became part of a sedimentary rock e. In what period/sub-period (whichever represents the smaller increment of time) did all three fossils exist at the same time?

You have just discovered a(n)Assume that the half-life of a particular radioactive isotope is 10,000 years. when the stable daughter isotope was formed If a radioactive element has a half-life of 4 million years, the amount of parent material remaining after 16 million years of decay will be what fraction of the original amount?

Relative age dating does not provide information about absolute ages, nor does it place rocks and events in chronological order.

2/26/2016 Homework 5 Geologic Time Print View?

Homework 5 Geologic Time Due: pm on Sunday, February 28, 2016 You will receive no credit for items you complete after the assignment is due.

When one rock mass contains fragments of an adjacent rock mass, we know the adjacent rock mass must be older.

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assignment ID=1211587 2/41 Correct Part C What is the principle of superposition?

ANSWER: Correct Part D What is the principle of cross­cutting relationships?

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