| Autor: |
Lambert, Joseph B., Levy, Allison J., Rueb, Nicole R., Nguyen, Truongan V., Wu, Yuyang, Santiago-Blay, Jorge A. |
| Předmět: |
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| Zdroj: |
Life: The Excitement of Biology; 2015, Vol. 3 Issue 4, p231-253, 23p |
| Abstrakt: |
Fifteen amber samples from Japan have been analyzed by nuclear magnetic resonance spectroscopy. The nine distinct geographical sources extend from the northern island of Hokkaido to the southern tip of the main island of Honshū. All but one sample gave the characteristic patterns of Group A amber. One of these, from Shiga Prefecture, gave variations of this spectral pattern suggesting a considerably younger or less fully matured condition within Group A. The fifteenth sample, from Mizunami in Gifu Prefecture, gave the clear pattern of Group B amber, which differs significantly from Group A in having an angiospermous (flowering) rather than a coniferous plant source. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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