Information you will need:
Uranium-238 to Lead-206 - half-life 4.5 billion years
Uranium-235...
Biology, 10.12.2020 06:20 Heartlesskiidkii
Information you will need:
Uranium-238 to Lead-206 - half-life 4.5 billion years
Uranium-235 to Lead-207 – half-life 713 million years
Carbon-14 to Nitrogen – 14 – half-life 5730 years
1) A zircon crystal from a lava flow was examined for geologic age. The
scientists measured the 235U, and 207Pb, and determined that 25% of
the atoms were 235U, and 75% were 207Pb.
b) What is the absolute age of the Lava flow?
Answers: 1
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