Added: Lanika Spinney - Date: 03.02.2022 08:04 - Views: 31178 - Clicks: 3897
Background : Radiocarbon dating of materials is a radiometric dating technique that uses the decay of carbon 14C to estimate the age of organic materials, such as paper and parchment. The method has been used to date the substrate of a range of ificant items, however it should be noted that carbon dating can only date the material itself, the paper or parchment, not media used to add content to the parchment or paper substrate.
The Earth's atmosphere contains various isotopes of carbon, roughly in constant proportions. These include the main stable isotope 12C and an unstable isotope 14C.
When an organism dies, it contains the standard ratio of 14C to 12C, but as the 14C isotope decays, the proportion of carbon 14 decreases at a known constant rate. The time taken for it to reduce by half is known as the half-life and the measurement of the remaining levels of 14C in organic matter can be used to give an estimate of its age.
Project Description :Five parchment Portolan early nautical Charts from the Mediterranean were selected by the curators of the Geography and Maps Division, Library of Congress for radiocarbon dating. The five charts spanned the time period through to aid investigations into whether the charts were from the specified time periods, or were created by a cottage industry known to occur many centuries later.
An important aspect of the study was a series of controlled tests comparing the radiocarbon content of un-cleaned, possibly contaminated samples, with chemically cleaned equivalents. Back to Top. Stay Connected with the Library All ways to connect » Find us on.Radiocarbon dating paper
email: [email protected] - phone:(453) 756-4788 x 3998
Radiocarbon dating of paper and parchment