Which of the following dating methods provides a fairly exact numerical age of a rock section? |

Which of the following dating methods provides a fairly exact numerical age of a rock section?

a. radioisotopic dating
b. faunal correlation
c. paleomagnetic dating
d. none of the above provide exact numerical ages

I think it's a. Am I correct?
Well, it does say "fairly" exact. I understand that no dating technique is actually an exact determination. I wish it were! That would be really cool. But I guess I should go with a then? Since it's fairly exact and not definitely exact?

The answer is (d) but the nearest correct answer I would prefer is (a).
You said exact numerical age, hence I say answer (d) is correct.
Radiometric dates are constrained with 1/2 life, so the precision would depend upon the pair of radiogenic elements used in determining the age besides accuracy of the methodology/instrumentation etc..

This entry was posted on Friday, March 20th, 2009 at 9:22 pm and is filed under dating. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

4 Responses to “Which of the following dating methods provides a fairly exact numerical age of a rock section?”

mandira_nk on March 21st, 2009 at 2:34 am

The answer is (d) but the nearest correct answer I would prefer is (a).
You said exact numerical age, hence I say answer (d) is correct.
Radiometric dates are constrained with 1/2 life, so the precision would depend upon the pair of radiogenic elements used in determining the age besides accuracy of the methodology/instrumentation etc..
References :
Seyi O on March 21st, 2009 at 2:41 am

Yes you are. b and c provides comparative/relative ages
References :
oldtimer on March 21st, 2009 at 3:09 am

D
References :
memo on March 21st, 2009 at 3:58 am

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