Dating methods Flashcards by Anu 686 | Brainscape

Q

Carbon dating was discovered by

A

Willard.F.Libby in
1952

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Q

C14 details- half life and max date?

A

Based on decay of C14 isotopes at a steady rate in organic matter- leather, reed and logs in houses
_ABSOLUTE DATING _
Half Life 🧬- 5730 yrs
Dating Maximum 60,000yrs
20- 50 mm sample needed
now AMS Dating Accelerated Mass Spectrometry

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Q

Potassium Argon Dating (K-Ar)

A

To date Volcanic Material
By calculating the ratio of K⁴⁰ that decays into Ar⁴⁰
ABSOLUTE DATING
1,00,000 - 4 Billion
Half life 🧬- 1.25 Billion yrs

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