NUCLEAR MAGNETIC RESONANCE CHARACTERIZATION OF CRETACEOUS AMBER

Carbon‐13 nuclear magnetic resonance spectra have been examined under high resolution conditions for 31 samples of fossil resin that have been dated to the Cretaceous period. Samples from Alaska, Canada, parts of the United States, Greenland, France, Switzerland, Lebanon, Jordan, and Israel have ver...

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Bibliographic Details
Published in:Archaeometry
Main Authors: LAMBERT, J. B., JOHNSON, S. C., POINAR, G. O.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1996
Subjects:
Canada
Greenland
Alaska
Online Access:http://dx.doi.org/10.1111/j.1475-4754.1996.tb00780.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1475-4754.1996.tb00780.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1475-4754.1996.tb00780.x
Description
Summary:Carbon‐13 nuclear magnetic resonance spectra have been examined under high resolution conditions for 31 samples of fossil resin that have been dated to the Cretaceous period. Samples from Alaska, Canada, parts of the United States, Greenland, France, Switzerland, Lebanon, Jordan, and Israel have very similar spectra, consistent with a common, geographically dispersed palaeobotanical source. Samples within this large group exhibit a variation in spectral linewidth that is consistent with differences in sample age or maturity. A single Triassic sample from Bavaria shows the same spectral patterns but greater linewidths, indicating that it probably had a similar palaeobotanical source.

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