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Originally Posted by Pacifier
carbon dating is not used for fossiles, it is used for dating younger items (not older than 30 000 years AFAIK)
Some of the oldest rocks on earth are found in Western Greenland. Because of their great age, they have been especially well studied. The table below gives the ages, in billions of years, from twelve different studies using five different techniques on one particular rock formation in Western Greenland, the Amitsoq gneisses.
Technique Age Range (billion years)
uranium-lead 3.60±0.05
lead-lead 3.56±0.10
lead-lead 3.74±0.12
lead-lead 3.62±0.13
rubidium-strontium 3.64±0.06
rubidium-strontium 3.62±0.14
rubidium-strontium 3.67±0.09
rubidium-strontium 3.66±0.10
rubidium-strontium 3.61±0.22
rubidium-strontium 3.56±0.14
lutetium-hafnium 3.55±0.22
samarium-neodymium 3.56±0.20
(from: http://www.asa3.org/ASA/resources/Wiens.html Radiometric Dating - A Christian Perspective)
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THANK YOU!! I always get upset when people use the blanket statement of radio carbon dating for all rock and fossil dating... There are so many other methods!
While they are not perfect, as they offer ranges of error in the millions of years, they are still reliable if taken on average. They are also remarkably good at proving the Earth is much older than most eastern scripture...
Although some central and south american tribes were close to the actual numbers... more on a guess though I'm sure, they didn't have any of the dating methods we have today.