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Because geological carbon does not have much plants appear to be 1,000 years old!
[vi] How would a recent past of high volcanism, as shown by ancient lava fields, ash falls, and dead volcanoes, have affected ancient carbon isotope ratios?
For example, in AD 774–775 there was an increase of 1.2% in the C content of tree rings, which was about 20 times as high as the background rate of variation.[ix] This “spike” was followed by a decline that lasted several years.
The cause of this difference is thought to be a solar flare, as the same signal is found in C in tree rings around the world, including Germany, Russia, the United States, and New Zealand.[x] Other researchers have noted similar findings.[xi] Do we know whether other solar flares like this occurred thousands of years ago? Heavy or light carbon atoms can become trapped, or at least concentrated, in “carbon reservoirs” where carbon isotopes do not quickly mix with the atmosphere.[xii] As a result, some modern deep ocean organics show a carbon age of 1,500 carbon years, for example.
Carbon dating works by basing an age calculation on the ratio of radioactive carbon (C) in the atmosphere before nuclear bomb testing to the same ratio in the sample. Using a formula that compares that ratio to a standard modern ratio produces a “percent modern carbon” (p MC) value that scientists use to estimate carbon ages for carbon-containing materials.Carbon-14 is continually formed in nature by the interaction of neutrons with nitrogen-14 in the Earth’s atmosphere; the neutrons required for this reaction are produced by cosmic rays interacting with the atmosphere.Radiocarbon present in molecules of atmospheric carbon dioxide enters the biological carbon cycle: it is absorbed from the air by green plants and then passed on to animals through the food chain.By 2100, a dead plant could be almost identical to the Dead Sea scrolls, which are more than 2,000 years old.”[xvi] Factor 10: Disequilibrium.A critical assumption used in C in the atmosphere, it would take up to 30,000 years to build up to a steady state (equilibrium): “If the cosmic radiation has remained at its present intensity for 20,000 or 30,000 years, and if the carbon reservoir has not changed appreciably in this time, then there exists at the present time a complete balance between the rate of disintegration of radiocarbon atoms and the rate of assimilation of new radiocarbon atoms for all material in the life-cycle.”[xvii] Dr. Studies since Libby’s original work have shown the C is known to be 18.8 atoms per gram of total carbon per minute.