Dating news

Intcal 13

Go to ... which takes you to Radiocarbon journal volume 55 Number 4, and scroll down to page 1869-1887 and the article, "Intcal 13 and Marine 13 radiocarbon age calibration curves 0-50,000 years calendar BP" - by Paula Reimer et al.  This outlines why Intcal was upgraded in 2013.

Jesus of Edessa

In The Times we have a small piece on an ancient coin that depicts Jesus as a warrior king - or that is what we are told. This is entirely different to the meek and humble Jesus of the Bible - so what is the thinking behind this? British historian Ralph Ellis has written a book and the piece is a plug (I suppose) - 'Jesus, King of Edessa' (published in April 2017). Ellis claims Jesus was Izas Manu who lived 30 years after the death of Jesus (via current chronology).

C14 Calibration

At ... without taking on board the Heinsohn AD revision, or indeed, his BC revision, it is interesting to note that it isn't just SIS authors who are sceptical of C14 calibration. I don't personally understand the reason why calibration has been re-calibrated recently (back in 2013) as it must cause a lot of confusion when dating archaeological material. For example, the 2300BC scenario is now dated to around 2500BC, opening up a massive gap in archaeology.

Judith Curry

Climate scientist Judith Curry has produced a new study that has been published at and basically she says that computer predictions of climate claims are flawed - fundamentally. Most people have intuitively understood this - without a climate scientist telling them. Now it is explained in easy language by a scientist well versed in how the climate works, the author and co-author of many papers on climate, and a university lecturer on the subject to boot.

radioisotope dating

At ... a paper by RB Hayes of North Carolina State University in Nuclear Technology (2017) claims there is a flaw in the radio-isotope dating technique which is used to pin down the age of rocks. The university news blurb does not give much away but it can be detrimental to uniformitarian geochronology or there would have been gnashing of teeth. It's all to do with the rate of differential mass diffusion. The calculations appear to be slightly awry.

Chauvet Pont D'arc

At ... and ... we have a story about dating the cave art, a head scratching affair. The cave is situated in southern France and is a World Heritage Site. It's walls are decorated with hand prints and drawing of 14 different species of animal - and charcoal from the embers of camp fires in the cave were used to draw some of them. These include bears, horses, woolly rhinoceros, and various big cats.

Tree rings and C14

At ... purports to show that C14 dates prior to 600AD are unreliable as a result of a cosmci event. The detail is missing and one is referred to various earlier posts on revising AD chronology he has made. It would be extremely interesting if C4 diverged from the tree ring graph - even if it was not to the extent he envisages. Somebody else might like to explore the issue.

C14 found wanting

At ... which is the South China Morning Post, apparently read at times by Andrew - see ... and concerns a paper in Earth and Planetary Science Letters which argues C14 dating is not all it is cracked up to be. C14 dating is unreliable in context as far as global warming studies are concerned - at dates older than 30,000 years ago.

cave lion

At ... accelerator mass spectrometry has been used by Russian biologists to date the remains of a cave lion that had been preserved in permafrost conditions. The remains included fossilised bone, claw and hair. The bones weighed in at 61,000 years ago but carbon extracted from animal hair was dated only 28,700 years ago. It is suggested the different dates arise because of contaminants in the fur of the animal. Obviously, they don't like the lower date - but why?

C14 dating oddity

Bob Porter over at the New Chronology Yahoo group has written that C14 dates from Thebes differ from those of the same period taken from Tell ed-Dab'a - by as much as a century. One theory being advanced is that delta water contains more older carbon than the Nile near Thebes (but plants are supposed to absorb C14 from the atmosphere). We seem to have something that might be explained by C14 samples being analysed at different laboratories - which would have to be explained in more detail.