1985/02/01 by J. B. LAMBERT, Joseph B. Lambert, J. S. FRYE +3 · 1 citation
Earth and Planetary Sciences · Chemistry · Physics and Astronomy · #High-pressure geophysics and materials #Advanced NMR Techniques and Applications #Atomic and Subatomic Physics Research
paper · doi:10.1111/j.1475-4754.1985.tb00345.x
The carbon‐13 NMR spectra of amber from several mining sites in the Dominican Republic show considerable variation. In certain cases the differences are sufficiently distinct to serve as a reliable indicator of provenance. The gradations within the resonances of unsaturated carbons may reflect the relative ages of the samples, because fossilization and diagenesis can remove this functionality.