Which techniques are used to determine the age of fossils?
A. Radioisotope dating
B. Electron microscopy
C. Particle acceleration
D. Relative dating by comparison to index fossils
E. Paleontology
2007-01-17 03:00:18 · 11 answers · asked by Rattiesrule 2 in Science & Mathematics ➔ Biology
A (Carbon-14) for ages less than 10 thousand years.
In general, D.
2007-01-17 03:04:45 · answer #1 · answered by Jano 5 · 1⤊ 1⤋
A (radioisotope dating) and D (relative dating by comparison to index fossils).
There is also Carbon -14. This method of determinging fossil ages only works with those less than 10 000 years old.
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2007-01-17 03:59:06 · answer #2 · answered by lemon drops 3 · 1⤊ 1⤋
relative age dating of rocks because a lot of fossils are found in rocks. absolute age dating or rocks. Scientists also use tree rings or chemical changes. radiometric dating. Carbon 14 is a radioactive isotope that is commonly used to determine the absolute age of an object. Molds or casts of fossils and indirect evidence of past life.
2016-05-24 00:05:04 · answer #3 · answered by ? 4 · 0⤊ 0⤋
A and D definitely. E could be the same as D, using known fossils in a layer to determine when the layer was put down and therefore approximately what age the fossil is, but I think that's covered in D. B could be used the same way...looking for microscopic details or other fossils on or around the fossil in question to narrow down the age. C is most likely not the answer. I would go with A and D.
2007-01-17 03:14:35 · answer #4 · answered by Anonymous · 0⤊ 2⤋
Usually A or D. Very rarely you might use B in the process but its no good on its own as a dating system. Never C. E is an area of study not a technique. Don't listen to the fools telling you to use carbon dating. Most fossils are much older than 10000 years so it doesn't work.
2007-01-17 03:07:58 · answer #5 · answered by Anonymous · 3⤊ 1⤋
Definitely A and D.
Possibly C. I can imagine some applications where electron microscopy might be used to differentiate between closely related species.
I can't for the life of me think how particle acceleration would apply and paleontology is a scientific discipline, not a technique.
By the way, radioisotope dating and radiocarbon dating are NOT synonymous. Radiocarbon dating is one type of radioisotope dating.
2007-01-17 03:21:35 · answer #6 · answered by gebobs 6 · 1⤊ 2⤋
The definition of a fossil is organic matter that has been mineralized. This cannot occur quickly enough to allow for any sort of carbon dating, so anyone saying "A" is wrong. The answer is D and E. E is fairly general while D is more specific.
2007-01-17 04:40:15 · answer #7 · answered by Patrick M 2 · 0⤊ 1⤋
A. The isotope Carbon-14 is used because it is radioactive.
2007-01-17 03:07:56 · answer #8 · answered by illustration 3 · 1⤊ 1⤋
A also called as radio carbon dating
2007-01-17 03:03:32 · answer #9 · answered by emperor_ham 2 · 0⤊ 2⤋
d
2007-01-17 03:14:40 · answer #10 · answered by tkkol f 1 · 1⤊ 0⤋