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The half-life of a radioactive material can
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
If rocks on other continents contain fossil remains of large dinosaurs similar to U.S. fossils they are
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
Geologic time is generally subdivided and based on
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
In order to date a rock sample 4 billion years old, a scientist would use
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
The relative ages of rocks is established using
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
Some charcoal and charred bones of deer were analyzed for C-14. (half-life = 5730 yrs.) If 1/8 of the C-14 remained, then
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
Which radioactive isotope has a half-life most useful for dating an object about 4700 years old?
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
Why is carbon-14 not used for dating rocks of Paleozoic age?
the charcoal is 17,190 years old.
Uranium-238
biologic events; however, geologic events can contribute.
carbon-14
never be changed.
superposition, uniformitarianism and correlation of fossils.
similar in age to rocks in the U.S. containing these fossils.
The youngest Paleozoic rocks are more than 40 times the age that C-14 can date.
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