Assorted retorts from yahoo boards and elsewhere: Nope, the Geological Column is Not Well-Proven in the Terrain · Creation vs. Evolution: What Can Go Wrong with Non-Carbon Radiometric Dating?
Had this conversation yesterday, only copying relevant parts:
- Dexia
- @hglundahl It's a physical limitation due to the half life of Carbon 14, and even if you stretch it a bit, how will you use it to date dinosaurs for example?
- Hans-Georg Lundahl
- @DexiaSteele It's not just due to the halflife, it's due to existing measurement equipment.
As said, other methods, the ones you date dinos with in Evolutionist circles, are even shadier than Carbon 14.
- Dexia
- @hglundahl Shady ? You mean nuclear physics is shady ?
- Hans-Georg Lundahl
- @DexiaSteele Applied sciences can always be shadier than the principles.
Photography isn't based on shady principles, but photoshop can lead to shady applications.
AND that can be a matter of fraud, or simply of inadequate routine.
Perhaps nuclear physics is shady too, while we're at it, but that was not the point being made.
So, what are the non-carbon ways of dating dinosaurs?
Why can they be wrong?
The historically earliest one has exactly nothing to do with radiometric dating methods or nuclear physics. Strata.
Here is a thing. "Above" and "below" mean one thing in ordinary conversation, and another one when a geologist speaks of strata. I asked Howard F (a geologist) where a pelycosaur was ever found below a dinosaur.
The pelycosaurs appear to have been a group of synapsids that have direct ancestral links with the mammals, having differentiated teeth and a developing hard palate. The pelycosaurs appeared during the Late Carboniferous and reached their apex in the early part of the Permian, remaining the dominant land animals for some 40 million years. A few continued into the Capitanian, but they experienced a sharp decline in diversity in the late Kungurian.
https://en.wikipedia.org/wiki/Pelycosaur#Evolutionary_history
This wiki is garbled, the Capitanian is actually supposed to be after the Kungurian.
In the geologic timescale, the Kungurian is an age or stage of the Permian. It is the latest or upper of four subdivisions of the Cisuralian Epoch or Series. The Kungurian lasted between 283.3 and 274.4 million years ago (Ma). It was preceded by the Artinskian and followed by the Roadian.
https://en.wikipedia.org/wiki/Kungurian
Dinosaurs diverged from their archosaur ancestors during the Middle to Late Triassic epochs, roughly 20 million years after the devastating Permian–Triassic extinction event wiped out an estimated 96% of all marine species and 70% of terrestrial vertebrate species approximately 252 million years ago.
https://en.wikipedia.org/wiki/Dinosaur#Evolutionary_history
So, you can see from the "millions of years ago" that Pelycosaurs are supposed to go extinct by 274.4 million or rather 260 million years ago and Dinosaurs are supposed to arise 232 million years ago. Strata should have a spot where a dinosaur is above a pelycosaur. Howard F said they did. When I checked his reference, the pelycosaur was in one end of North Dakota, the dinosaur in the other and the "above" means a higher layer.
So, why is this not two layers of rapidly deposing Flood of Noah mud, covering two different creatures at slightly different times? Because there is so much time between us and the pelycosaurs and dinosaurs that the place where a pelycosaur was buried millions of years before a dinosaur was has at least one of them, usually both disappearing? Neat explanation, but proof still lacking.
The two main non-carbon but still nuclear are K-Ar (potassium-argon) and the Uranium or Thorium based ones (U-Pb, Th-Pb).
They are still different. Potassium argon comes from lava. It contains lots of potassium, the eruption of it all has a tendency to go with radioactivity, and the potassium then initially produced is supposed to evaporate before the lava solidifies. What could go wrong?
Well, in the case of eruptions during the Flood, lava could solidify quickly. And the quicker the lower down since the water would have been more plentyful, and cooler.
Quicker solidity means less has time to escape, means more is left, means those who presume it all escaped before the process began again in solid lava misdate it even more.
Some have answered that Ar-Ar is used to verify, but actually argon-argon is used to finetune the dating already established by K-Ar.
However, this cannot be said for Uranium Lead dating or the similar ones, since in this case neither parent nor daughter element are gasses that even can escape.
For some of it, one can ask how we know that the specific isotope of Lead came from Uranium and wasn't there from start (like the meteorites that are used to date Earth and Solar System to 4.5 billion years). But zircons don't allow that either. You see, zircons are closed around an initial mass, where Uranium can, but Lead can't enter. All lead in a zircon has to come from the Uranium.
So, the only way about Uranium-Lead in zircons is, either it took that long, or the speeding up of the decay would have caused heat. Even a heat problem.
A certain Setterfield considers that the constant speed of light in vacuum has changed. Decay rates would have changed with them, all going slower. I don't agree on that solution, but it's fair to mention it.
Now, there is, after the Flood in speedy decay a heat problem. There is also a mud problem, very thick layers of deposition during the Flood, and how could all that become solid? I combine these into zircons actually helping to grill the mud from the inside ... at least the ones with Uranium in them. Obviously, the normal mix of zircons is non-radioactive and has no decay. Forgot to say that.
I mentioned that even before applying the principles, the nuclear physics themselves might be shady. I didn't mean questions like "how do you know that an electron is a particle" but more like how do you measure the decay speeds of K-Ar or U-Pb?
Take a sample of wood that's 500 years old. Calculate how much the carbon 14 content should be if there hadn't been emission of carbon dioxide ("modern carbon" means "modern level of carbon 14 as it should be" and not "as it is"). Measure the carbon 14 (in relation to carbon 12) in the wood. This then gives you how many "percent modern carbon" or percent of this theoretic modern carbon level are left in the wood.
In actual fact, the carbon 14 level has fluctuated, so just one of these ages (500 years ago) could be off, you'd need to do it for more of them. But I'll give you 500 years for the example. Now, it is important to keep in mind, you actually know the wood is 500 years old, the wooden object was created 490 years ago from wood that had been drying for ten years, meaning it had been felled 500 years ago.
0.5^(500 / 6730) = 0.9498066715168165
0.5^(500 / 5730) = 0.9413087854383377
0.5^(500 / 4730) = 0.9293485964739775
Lo and behold, the wooden object has a remaining carbon 14 content of 94.131 pmC, not of 94.981 or of 92.935.
But the reason this helps us is, we can actually check that the number of years of actual decay which we compare to the halflife (decay until 50 pmC is left, i e half the initial proportion of C14) is 500 years. Now, potassium-40 has (supposedly) a halflife of 1,251,000,000 years.* Let's compare with the half life of thousand times faster.
0.5^(500 / 1,251,000,000) = 0.9999997229627959
0.5^(500 / 1,251,000) = 0.9997230011288433
So, how do you tell the difference between 99.999... and rounding upward and 99.999... and rounding upward? Especially as the comparison is to a potassium isotope that's just theoretically assumed to be this proportion of potassium.
To measure the amount of 40K remaining in the sample, the total amount of potassium is measured and multiplied by the ratio of 40K to total potassium.[29] This ratio, 0.000117[10], is considered to be constant in all terrestrial potassium.[30]**
What? I wonder what the footnotes 29 and 30 say ... McDougall & Harrison (1999), p. 10. / Dalrymple & Lanphere (1969), p. 36.***
I can't consult these books to check the accuracy, but if this is so, the potassium daters are basically assuming that other potassium is lost in time with potassium 40 becoming argon 40.
Otherwise, why would the potassium 40 be measured indirectly, by multiplying overall potassium by 0.000117?
So, back in the dialogue, I answered a somewhat different question, namely why reported datings are not necessarily by many concurrent dating methods per sample and discording dates are left out. I have now answered why the routines for dating dinosaurs (outside creationist circles, Mark Armitage actually does find carbon 14, or did before external labs started refusing them), are shadier than carbon 14.
Underpinning everything, of course, is the theory of evolution and its passengers. As the archaeologist Professor Brew put it, ‘If a C-14 date fits our theories, we put it in the main text. If it does not entirely contradict them, we put it in a footnote. And if it is completely "out of date", we just drop it.’
How long have Aborigines been in Australia?
Published 27 Jan, 2006
https://creation.com/en/articles/how-long-have-aborigines-been-in-australia
This was my original answer. Datings that do not confirm the given dates actually exist. They are left out. Citing CMI for citing the archaeologist (of Aborigines) Brew.
Hans Georg Lundahl
Paris
St. Charles Borromeo
4.XI.2026
3 Novembris Mediolani natalis sancti Caroli Borromaei Cardinalis, Episcopi Mediolanensis et Confessoris, quem, sanctitate conspicuum et miraculis clarum, Paulus Papa Quintus in sanctorum numerum retulit. Ipsius tamen festivitas sequenti die celebratur.
4 Novembris Sancti Caroli Borromaei Cardinalis, Episcopi Mediolanensis et Confessoris, qui migravit in caelum pridie hujus diei.
My debates with Howard F are in a series, where the main message, giving the principle, is in Three Meanings of Chronological Labels.
The debate with Dexia is an update on a somewhat older post, from August.
* https://en.wikipedia.org/wiki/List_of_radioactive_nuclides_by_half-life#1015_seconds_(petaseconds) ** https://en.wikipedia.org/wiki/K%E2%80%93Ar_dating#Potassium *** McDougall, Ian; Harrison, T. Mark (1999). Geochronology and thermochronology by the 40Ar/39Ar method. Oxford University Press. ISBN 978-0-19-510920-7. / Dalrymple, G. Brent; Lanphere, Marvin A. (1969). Potassium-Argon Dating: Principles, Techniques and Applications to Geochronology. San Francisco: W. G. Freeman & Co. ISBN 0-7167-0241-X.