Carbon dating half life related

Therefore scientists must make a guess with regard to what they believe the original conditions might have been.

The shorter the time involved, the more likely that a specific process has been constant, and unaltered by external influences.

The oldest living thing on earth is either an Irish Oak or a Bristlecone pine.If we assume a growth rate of one tree ring per year, then the oldest trees are between 4,500 and 4,767 years old.The fact that these trees are still alive and growing older means that we don't yet know how old they will get before they die.It also strongly suggests that something happened around 4,500 to Note also that it is possible for trees to produce more than one growth ring per year, which would shorten the above estimated ages of these trees.Also, with regard to fossil tree rings, the author has been unable to find any documented instances of fossil trees having more than about 1500 rings.

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