Carbon dating non organic materials
Dendrochronology, or counting tree rings, is particularly useful for logs preserved in fairly recent sites and that can be compared to known historic trees.[Originally posted as Carbon-14 Dating and Biblical History] Carbon dating assigns ages to once-living materials such as wood, bone, teeth, and shells.Relative dating is basically the placement of something in a sequence.A sequence is based on the law of superposition, which states that material found at the bottom of a sequence is older than the material above it.
This technique, developed for dating rock paintings [4-6, and Texas A&M University references therein] –plasma-chemical extraction, also eliminated the need for the two acid steps required in step (I) [7 ,8].
Evolutionary researchers do not use it to age-date rocks.
It begins by measuring the ratio of radioactive versus stable versions of an element.
All that remains to obtain “non-destructive” radiocarbon dating of perishable artifacts is a non-destructive substitution for the strong base wash currently used to extract any contaminating humic acids.
We investigate here the possibility of using supercritical fluid cleaning to extract humic acids from organic archaeological artifacts.
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This method can give archaeologists an indication of the age of the artifacts where the deposits are stratified (layered) and have not been disturbed.