14-12.7z -
(carbon-14 to carbon-12 ratios). For example, a notable paper in PubMed discusses changes in these ratios over the last glacial period.
): In academic literature, "14-12" frequently appears in papers discussing paired measurements of 14-12.7z
The string "14:12.7Z" often appears in technical logs and sitemaps as a UTC timestamp (specifically, 14 minutes and 12.7 seconds). It is common in Stack Overflow discussions and news sitemaps like MLive . (carbon-14 to carbon-12 ratios)