Jan 14 Read
The calculation uses 8,, the mean-life derived from Libby's half-life of 5, years, not 8,, the mean-life derived from the more accurate modern value of 5, years. Occasionally, radiocarbon dating techniques date an object of popular interest, for example the Shroud of Turin , a piece of linen cloth thought by some to bear an image of Jesus Christ after his crucifixion. A much larger effect comes from above-ground nuclear testing, which released large numbers of neutrons and created 14 C. But if you took a core in the eight oclock position, you would find broad rings and even wider rings, which may match to a completely different date. Applying their results to previously published chronologies, the researchers show how even the relatively small offsets they observe can shift calendar dates by enough to alter ongoing archaeological, historical and paleoclimate debates. So the shark strikes.