Relative and Absolute Dating

Flashcard
•
Science
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is relative dating?
Back
Relative dating is a method used to determine the age of rocks and fossils in relation to one another, without determining their exact age.
2.
FLASHCARD QUESTION
Front
What is absolute dating?
Back
Absolute dating is a technique used to determine the actual age of a rock or fossil, often through methods like radiometric dating.
3.
FLASHCARD QUESTION
Front
What does the law of superposition state?
Back
The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the younger layers are at the top.
4.
FLASHCARD QUESTION
Front
What is an unconformity in geology?
Back
An unconformity is a gap in the geological record that occurs when rock layers are eroded or not deposited for a period of time.
5.
FLASHCARD QUESTION
Front
What is cross-cutting relationships?
Back
Cross-cutting relationships state that a geological feature (like a fault or intrusion) that cuts through another is younger than the feature it cuts.
6.
FLASHCARD QUESTION
Front
What is the principle of uniformitarianism?
Back
The principle of uniformitarianism suggests that the processes we see shaping the Earth today have been occurring in the same way throughout geological time.
7.
FLASHCARD QUESTION
Front
How can you identify the oldest rock layer in a sequence?
Back
The oldest rock layer can be identified as the bottom layer in an undisturbed sequence of sedimentary rocks.
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