How was carbon dating used on the turin shroud
The debate remains open between those who, on the basis of these results, have denounced the shroud as a fake and those who challenge the reliability of the results.
Garza-Valdes outlines further, that while studying thin sections from the Shroud fibers it was found that "more than 60% of the fibers' area is bioplastic".
(lit., "The Shroud, comparing evidence") by David Rolf suggested that the quantity of carbon 14 found on the weave may have been significantly affected by the weather, the conservation methods employed throughout the centuries, as well as the volatile carbon generated by the fire that damaged the shroud while in Savoy custody at Chambéry.
Likewise proposed was a reaction with carbon monoxide (CO), a trace gas present in air.
The dating of the control pieces, originally set to remain unknown, was unfortunately published by Vatican daily newspaper on April 23.
This "leak", along with the violations to the protocol, marred the credibility of this phase of the procedure and fed suspicions of tampering.