But I noticed some arguments questioning its accuracy. U may of heard of them.
Almost certainly I or others here have, and know why they are fraudulent.
One was of a lava flow that was 10 years old. The decay rate of 5 or 6 elements where measured. The results where in a range of 20,000ya to hundreds of millions of years ago.
Nitpicking: it isn't the decay rate that's measured.
Sounds like my personal favorite creationist fraud. Snelling wrote two articles on it, one for the sheeple and one "technical". In the latter, but not the former he gave away the gaff, and all you need to know is that "whole rock" means the entire rock, not any individual mineral from the rock, and "xenolith", literally foreign rock, means a piece of an older rock that didn't melt embedded in a younger rock.
ANDESITE FLOWS AT MT NGAURUHOE, NEW ZEALAND, AND THE IMPLICATIONS FOR POTASSIUM-ARGON "DATING":
quote:
A second representative set (50-100 g from each sample) was sent progressively to Geochron Laboratories in Cambridge (Boston), Massachusetts, for whole-rock potassium-argon (K-Ar) dating
...
The potassium and argon analyses were undertaken at Geochron Laboratories under the direction of Richard Reesman, the K-Ar laboratory manager. No specific location or expected age information was supplied to the laboratory. However, the samples were described as andesites that probably contained "low argon" and therefore could be young, so as to ensure the laboratory took extra care with the analytical work.
Because the sample pieces were submitted as whole rocks, the K-Ar laboratory undertook the crushing and pulverising preparatory work.
...
Steiner [90] stressed that xenoliths are a common constituent of the 1954 Ngauruhoe lava, but also noted that Battey [7] reported the 1949 Ngauruhoe lava was rich in xenoliths. All samples in this study contained xenoliths, including those from the 1975 avalanche material.
...
Xenoliths are present in the Ngauruhoe andesite flows (Table 3), but they are minor and less significant as the location of the excess 40Ar* residing in these flows than the plagioclase and pyroxene phenocrysts, and the much larger glomerocrysts of plagioclase, pyroxene, or plagioclase and pyroxene that predominate. The latter are probably the early-formed phenocrysts that accumulated together in the magma within its chamber prior to eruption of the lava flows. Nevertheless, any excess 40Ar* they might contain had to have been supplied to the magma from its source. The xenoliths that are in the andesite flows have been described by Steiner [90] as gneissic, and are therefore of crustal origin, presumably from the basement rocks through which the magma passed on its way to eruption.
TL : DR version:
Snelling dated a mixture of old and new material and expressed amazement that the date came out as older than the new material. Duh. He presented no data for his claim that the xenoliths were not important.
{Also he could have used the much more robust Ar-Ar method, and/or extracted samples of the new material if possible and likely gotten a valid result)
And others of living specimens that have dated back millions of years.
There's several frauds that could be described as that. Carbon dating works for samples that were in equilibrium with atmospheric 14C when they left this vale of tears. Marine animals are
not in equilibrium with atmospheric 14C because at least some of their carbon comes from ancient deposits dissolved in the water, and essentially all of the 14C in such deposits has decayed. Again it's a mixture of old and new material. There are correction factors which one can apply.
A freshly killed seal was carbon-14 dated at 1300 years old.Living snails were carbon-14 dated at 2,300 and 27,000 years old, showing that the dating method is invalid.
Edited by JonF, : No reason given.
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