Carbon 14 Dating 2

Carbon 14 Dating 2

Category:

Education

Tags:

• Carbon
• 14
• Dating

[nekojx]

en.wikipedia.*rg/wiki/List_of_­oldest_trees

(*=o)

Prometheus 4,862 years (verified)

probably have older trees, but as you have said carbon is to determine the date for relatively closer ages, like 0-10 000, for older fossils there is other methods, an example for method to find the date of million years old bone is the method of proportion of fluorine and phosphate or other elements isotopes ;)

[PaleHearse]

Just so you know.. the way they get the 10K data for tree rings is by overlapping the rings in living trees to the rings in dead ones. Because the trees exhibit growth rings that are specific to the variability in growing seasons, you can use this variability to find, say, the pattern in the last hundred years of a tree's life and match it to the first 100 years of a younger tree's life.

[rogerscottq]

sonic dot net slash bristlecone slash dendro dot html

Link to the pine story.

[rogerscottq]

Bristle-cone pines have been dated at 9,000 years or more using living and dead cores. I guess the oldest living supposedly is only 4,000 plus years. Yet I recall that some yahoo cut down a living specimen and realized he'd cut down a tree that was older than that. I seem to recall near to 9000. Now the area is, according to the documentary I saw, supposedly protected from such idiots. There could be a 10,000 year old tree out there.

[hamoan66boi]

@TheFrugalGamer He was just using that number as an example.

[GreenSlugg]

@MonsterSlayer14 The idea is that you can check the assumption that the Carbon-14 levels have been constant in the atmosphere. In a nutshell, it is known that the levels of Carbon 14 have had major fluctuations. You cannot use C14 dating on anything after the Industrial Revolution, because of the increase in normal carbon in the atmosphere (which would make things that died after the industrial revolution look older).

I am actually putting together a lot of Carbon Dating info on my web site.

[MonsterSlayer14]

so you take a sample off the tree ring specified for that year and from that sample you can measure what the c14 lvl was??

[TheFrugalGamer]

@Maracachucho Yeah I read about it in more detail after watching this and have a much better understanding. Thanks for the help.

[Maracachucho]

@TheFrugalGamer You're right man, you completely missed it. You use tree rings. Though he didn't address this particular point in too much detail. Just look it up.

[AngelKnight85268]

So the burning of fossil fuels screws up the amount of carbon 14 in the atmosphere, then what about the artifacts and stuff in the last 50 years that scientists have dated and would that mess the method up so that you can't have accurate dates?