RE: The dates given by AOS for past events may actually disprove evolution entirely
October 8, 2013 at 1:59 pm
(This post was last modified: October 8, 2013 at 2:01 pm by max-greece.)
(October 8, 2013 at 1:41 pm)SavedByGraceThruFaith Wrote:(October 8, 2013 at 1:05 pm)apophenia Wrote: This is an article about the amount of carbon in the atmosphere, which has indeed fluctuated significantly. However, radiocarbon dating is based on the ratio between two specific types of atmospheric carbon, not the total level of all carbon. That ratio has only varied slightly, and the amount it has varied is known by calibration with tree ring data. Dates given may be given as calibrated or uncalibrated, with uncalibrated dates running from 10-20% under the actual age of the specimen according to Wikipedia (Wikipedia: Radiocarbon Dating, Calibration). Moreover, the article you have cited refers to changes over 500 million years, which is five orders of magnitude larger than the range of ages over which radiocarbon dating is useful, making it doubly irrelevant.
So the "evidence" you link to is no such thing. Denied!
I doubt you would recognize actual evidence if it bit you in the ass.
But the amount of C-14 in the atmosphere is dependent of how much nitrogen is converted by radiation into C-14. The nitrogen level could not have been much higher than its current level of 78%. If the radiation hitting the atmosphere is the same. There is the same concentration of C14. But the ratio of C-14 to C-12 is almost 20 times less if ther is 20 times the amount of CO2.
Also the radiation hitting the atmosphere was less before the flood.
Gracie,
I am so proud of you! Yes - you made exactly the same erroneous assumption that the original scientists made:
"If the radiation hitting the atmosphere is the same. "
Sadly - it isn't. The levels of background radiation varies (Cosmic Rays if you want to get technical).
This is why the tree rings were such a God-send (tee hee). With Tree rings we have something of known age. We take a C14 reading from that and can then extrapolate the curve that we use to correct readings.
From the same tree rings we can see that the levels of CO2 in the atmosphere haven't changed dramatically in 11,000 years. We can extrapolate further but we don't use Carbon dating beyond 40,000 years for reasons including the one you mentioned (varying amounts of CO2 in the atmosphere).