Term
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Definition
any method of determining whether an event or object is older or younger than other events or objects
(pg. 94) |
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Term
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Definition
the trace or remains of an organism that lived long ago, most commonly preserved sedimentary rock
(pg. 81, 100) |
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Term
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Definition
a principle that states that younger rocks lie above older rocks if the layers have not been disturbed
(pg. 95) |
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Term
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Definition
a break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
(pg. 97) |
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Term
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Definition
an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
(pg. 101) |
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