A few months ago i saw on the news that Ray Rogers, one of the original scientists who examined the shroud in the 70s claimed that the sample dated in medievel times was actually a re-woven addition to the shroud. the sample was medievel but not part of the original. heres the article from shroud.com.
Prominent Los Alamos Scientist Proves 1988 Carbon-14 Dating of the Shroud Used Invalid Rewoven Sample
Ray Rogers at his Petrographic Microscope, May 2004
A new, peer reviewed scientific paper by Raymond N. Rogers, retired Fellow of the Los Alamos National Laboratory, was published on January 20, 2005, in the latest issue of the journal Thermochimica Acta, Volume 425, Issues 1-2, Pages 189-194. Titled "Studies on the radiocarbon sample from the Shroud of Turin," the paper concludes:
"As unlikely as it seems, the sample used to test the age of the Shroud of Turin in 1988 was taken from a rewoven area of the Shroud. Pyrolysis-mass spectrometry results from the sample area coupled with microscopic and microchemical observations prove that the radiocarbon sample was not part of the original cloth of the Shroud of Turin. The radiocarbon date was thus not valid for determining the true age of the Shroud."
In a press release earlier this week, Rogers stated, "The radiocarbon sample has completely different chemical properties than the main part of the Shroud relic. The sample tested was dyed using technology that began to appear in Italy about the time the Crusaders' last bastion fell to the Turks in AD 1291. The radiocarbon sample cannot be older than about AD 1290, agreeing with the age determined (for the sample) in 1988. However, the Shroud itself is actually much older."
As a result of his own research and chemical tests, Rogers concluded that the radiocarbon sample is totally different in composition from the main part of the Shroud of Turin and was cut from a medieval reweaving of the cloth. Rogers was also the leader of the chemistry group for the Shroud of Turin Research Project (STURP), the scientific team that performed the first in-depth scientific examination of the Shroud in 1978.
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EDITOR'S NOTE: You can access the journal paper (or at least the abstract) at the following link:
http://dx.doi.org/10.1016/j.tca.2004.09.029. Once there, if you click on the link to "Volume 425, Issues 1-2" at the bottom left of the page, it will open the table of contents for this volume. In the table of contents, scroll down to number 26, Ray's paper, and click on the "Summary Plus" link. That will take you to the entire paper, which is currently available gratis, but that will probably change very soon. In future, one will have to register and pay a fee to access the full text and illustrations. However, the free link to the abstract is permanent.
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Rogers' new research clearly disproves the 1988 findings announced by British Museum spokesperson, Michael Tite, when he declared that the Shroud was of medieval origin and probably "a hoax." The British Museum coordinated the 1988 radiocarbon tests and acted as the official clearing house for all findings. Interestingly, the original carbon-14 dating protocol had called for chemical analysis of the samples prior to their destruction during the testing. However, that analysis was never performed by any of the three dating laboratories. Each lab was given a small portion of the single sample cut from a corner of the Shroud specifically for the tests. It is difficult to predict whether the anomalous nature of the sample would have been detected had the chemical analysis been performed, but it might have led the laboratories to request additional samples be taken from other areas of the Shroud to validate the accuracy of their results. As it was, the three laboratories concluded that their results were correct to a 95% certainty, a claim that, according to some experts, is difficult to support based on the single sample tested.
Another issue that arose in Ray Rogers' study was the finding of cotton fibers in the sample used for C-14 dating. There was no cotton found in any of the samples taken by the STURP team from the main body of the Shroud cloth in 1978. Yet even the Oxford lab, one of the three labs that performed the C-14 dating in 1988, reported they found cotton in the fibers of the sample they tested. My thanks to Rev. Albert "Kim" Dreisbach, Jr., for providing me with the additional information and several references to this cotton issue in an e-mail today. I have included his comments at the following link: Cotton Fiber in C-14 Sample.
Almost immediately after the results were released in 1988, Shroud analysts questioned the validity of the sample used for the dating. In fact, one researcher with considerable experience in radiocarbon dating ancient artifacts, University of Hong Kong based archaeologist William Meacham, presented a paper in 1986, two years before the infamous dating, outlining his concerns. Titled, "Radiocarbon Measurement and the age of the Turin Shroud: Possibilities and Uncertainties," it suggested that contamination could easily skew the results. Unfortunately, it went largely unnoticed. In light of Rogers' recent work, it is undoubtedly well worth re-reading.
More recently, researchers M. Sue Benford and Joseph Marino, using high-resolution photographs of the Shroud and enlisting the aid of textile experts, found indications of an "invisible" reweave in the area used for the C-14 testing. They presented a series of controversial papers at Shroud conferences that revealed their results, including Evidence for the Skewing of the C-14 Dating of the Shroud of Turin Due to Repairs in 2000 and Historical Support of a 16th Century Restoration in the Shroud C-14 Sample Area and Textile Evidence Supports Skewed Radiocarbon Date of Shroud of Turin in 2002.
It is interesting to note that when Ray Rogers first saw the Benford/Marino papers, he believed he could "disprove their theory in 5 minutes." Of course, that was not to be the case. In essence, Benford and Marino's findings stimulated him to do the research that ultimately led to today's stunning announcement. In fact, in a classic example of how science is truly self-correcting, Ray ultimately proved that Sue and Joe were correct! Ironically, it should be noted that the 1988 C-14 dating results were also technically correct: the only sample they tested was in fact, medieval. Unfortunately, it did not represent the main body of the Shroud cloth. Years later, when Prof. Luigi Gonella, Official Scientific Advisor to the Archbishop of Turin (and the man who approved the decision to take only a single sample) was asked why this was allowed to occur, he responded with a single word, "expediency." Unfortunately, that ill-fated decision caused seventeen years of turmoil and chaos in the study of what is arguably the most important relic in all of Christianity.
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During the course of his research, Ray enlisted the aid of professional microscopist John L. Brown to independently examine some of his samples. See the article John Brown wrote exclusively for the Shroud of Turin Website below.
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Independent Microscopy Supports Ray Rogers' Conclusions
I am truly honored to publish an article today by John L. Brown titled Microscopical Investigation of Selected Raes Threads from the Shroud of Turin (.pdf format) [190k]
John was a Principal Research Scientist at the Georgia Tech Research Institute's Energy and Materials Sciences Laboratory at the Georgia Institute of Technology until his retirement in 1984. He is an expert microscopist specializing in the field of forensic analysis of material failures, and was enlisted by Ray Rogers to examine samples of selected Raes threads taken from the Shroud in 1973. These threads are important because they were taken from the area immediately adjacent to the sample used for carbon-14 analysis of the Shroud in 1988. In this article, John provides an independent review of the samples he examined, along with seven previously unpublished photomicrographs and scanning electron microscope views that supplement and support the conclusions drawn by Ray in his recent peer reviewed paper. I want to thank John again for taking the time to write the article and provide it to us for today's update. John's article can also be accessed from the Website Library and Scientific Papers & Articles pages of this site.
Posted January 21, 2005