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Radio carbon dating inaccuracies

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Similarly, it will take another 5,730 years for the amount of carbon to drop to 25g, and so on and so forth.

By testing the amount of carbon stored in an object, and comparing to the original amount of carbon Unfortunately, the believed amount of carbon present at the time of expiration is exactly that: a belief, an assumption, an estimate.

Their work was detailed in a paper in the latest issue of the journal .

For over 50 years, scientists and researchers have relied on carbon dating to find the exact age of organic matter.

The C-12 is a very stable element and will not change form after being absorbed; however, C-14 is highly unstable and in fact will immediately begin changing after absorption.

Specifically, each nucleus will lose an electron, a process which is referred to as decay.

Radiocarbon dating, which is used to calculate the age of certain organic materials, has been found to be unreliable, and sometimes wildly so - a discovery that could upset previous studies on climate change, scientists from China and Germany said in a new paper.

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Many events can affect the levels of carbon-14 in the atmosphere, such as the burning of fossil fuel or the detonation of an atom bomb.

In the new study using samples taken from Xingkai Lake near the Sino-Russian border in Heilongjiang province, the scientists used both radiocarbon dating and another method known as optically stimulated luminescence.

Using light to measure the amount of free electrons trapped in quartz, the team was able to tell how long the samples had been kept away from sunlight, and therefore estimate when it was that they first fell in the lake.

But the new study suggests that the sediment might be over 80,000 years old, possibly formed during an ice age.

"The carbon-14-based mega-lake hypothesis was even incorporated into modelling work to interpret regional climate dynamics,” the paper reported.