2006-09-26 18:50:07 · 3 answers · asked by sun c 1 in Science & Mathematics ➔ Biology
Hmm ... I know tomography (specifically 'computed tomography', or CT scanning) is being used to non-destructively study the structures of small fossils ... in particular fossilized embryos. But I don't know how they are used specifically for *dating* fossils. (There are a lot of other techniques used for dating.)
2006-09-26 19:46:50 · answer #1 · answered by secretsauce 7 · 0⤊ 0⤋
it think it's a radiometric dating, which based on the rate decay of radioactive isotopes. Each radioactive isotope has fixed rate of decay. An isotope's half-life, the number of years it takes for 50% of the original sample to decay, is unaffected by temperature,pressure, and other environmental variables
2006-09-27 03:16:05 · answer #2 · answered by a learner 2 · 0⤊ 0⤋
Tomography, you mean?
2006-09-27 01:59:54 · answer #3 · answered by ? 6 · 0⤊ 0⤋