固体ＮＭＲを利用したコハクの続成変化の解析

三田 肇; 木村 英昭; 塚田 好美; 中條 利一郎; 山本 泰彦

doi:10.14862/geochemproc.54.0.59.0

54th Annual Meeting of the Geochemical Society of Japan

Session ID : 1C21

DOI https://doi.org/10.14862/geochemproc.54.0.59.0

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Diagenesis of amber analyzed with solid-state ¹³C-NMR

Hajime MITA, Hideaki KIMURA, Yoshimi TSUKADA, Riichiro CHUJO, Yasuhiko YAMAMOTO

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Keywords: Amber, Solid-state 13C-NMR, Diagenesis, Exocyclic methylene group

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

Solid state ¹³C-NMR characterization of cross-linkage formation between the exocyclic methylene groups of labdane polymers in amber demonstrated that the process is an apparent first-order reaction with a half-life of ca. 13 million years.

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