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Author Question: In dating a mineral, what is meant by resetting of the mineral's time clock? What will be an ... (Read 86 times)

asmith134

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on: Jul 29, 2018
In dating a mineral, what is meant by resetting of the mineral's time clock?
 
  What will be an ideal response?

Question 2

In a sequence of rock layers we find trilobite and dinosaur fossils. The dinosaur fossils are at the bottom of the rock sequence and the trilobites are at the top. This sequence tells us that
 
  A) dinosaurs are older than trilobites.
  B) the beds are overturned.
  C) trilobites survived the age of the dinosaurs.
  D) the beds are folded.


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Sweetkitty24130

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: The time clock can be reset if the mineral is heated during a metamorphic event. The date obtained from that mineral may be the date of the metamorphic event, not the original age of the mineral.

Answer to Question 2

Answer: B


asmith134

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Reply 2 on: Jul 29, 2018
Gracias!

fatboyy09

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Reply 3 on: Yesterday
Excellent

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