Archaeometry · 1985 · 143 citations · 6 references
Organic GeochemistryThe Dominican RepublicEngineeringGeochemical DataNatural SciencesSpectroscopyDominican RepublicGeochemical StudyCarbon‐13 Nmr SpectraGeochemistryRelative AgesChemistryMolecular GeochemistryPetrology
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.
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Jean H. Langenheim · Science · 1969 · 272 citations
George Schwabtzman · Journal of AOAC INTERNATIONAL · 1977 · 242 citations
Carbon Functionalities in Amber
Joseph B. Lambert, James S. Frye · Science · 1982 · 76 citations