(June 7, 2025 at 11:22 pm)Paleophyte Wrote:(June 7, 2025 at 9:59 pm)SubtleVirtue Wrote: Are you claiming that trilobite fossils have carbon such that they have been carbon dated?
Nope, 14-C is useless for anything that old. You asked for "a sample of life based material that is older than 50k years old". For that you'll need a much slower radiometric system. U-Pb is the gold standard, and works to several times the age of the Earth. Ar-Ar, K-Ar, Rb-Sr, and several other can also be used and provide independent cross-checks.
Quote:What is the evidence for Lucy? Was it debunked?
They've extracted single crystal Ar-Ar ages from the underlying volcanic ash that date to 3.18 and 3.20 million years. Here's the 1994 paper with the ages.
Not debuked, you must be thinking Piltdown Man or some other foolishness.
can you tell me exactly how to do the test... as if I would do it myself?
piltdown man.... you may be right. is there any paper on lucy?
