Interesting facts on carbon dating
Most fossils are marine in origin, or are land animals that fell into a water environment.This is because sediments easily accumulate in water environments (lakes, streams, oceans).It is assumed that the ratio has been constant for a very long time before the industrial revolution.Is this assumption correct (for on it hangs the whole validity of the system)?Africans were the first to engage in mining 43,000 years ago.In 1964 a hematite mine was found in Swaziland at Bomvu Ridge in the Ngwenya mountain range.Africans were the first to organise fishing expeditions 90,000 years ago.
The largest specimen known in modern times — the Glencoe Baobab — had a circumference of 154 feet until recently.
While some of the trees are quite, quite old, they don’t actually produce growth rings like many trees do — as a result, carbon dating is usually used to establish estimated ages.
Many of the larger trees are thought to be at least several thousand years old.
(Ham et al., page 68.) C ratio in the past, or that this is "the technique's Achilles' heel" is incorrect.
The whole validity of radiocarbon dating for the past 10,000 years---the time span of interest to biblical chronology---hangs only on the tree-ring chronologies which are used to calibrate it. .) This process does not involve any assumption about historic radiocarbon to stable carbon ratios because the radiocarbon concentration in the tree-ring samples would be affected in exactly the same way as the radiocarbon concentration in the specimen to be dated. To quote again from The Answers Book: Some recent, though controversial, research has raised the interesting suggestion that c (the speed of light) has decreased in historical times. If it is correct, then radioactive decay rates would automatically be affected, and would show artifically high ages.
Human remains were discovered at Omo in Ethiopia that were dated at 195,000 years old, the oldest known in the world.2.