Hostname: page-component-7b7567c8c-tnzcf Total loading time: 0 Render date: 2026-11-15T06:41:39.103Z Has data issue: false hasContentIssue false

Gakushuin Natural Radiocarbon Measurements V

Published online by Cambridge University Press:  18 July 2016

Kunihiko Kigoshi
Affiliation:
Faculty of Science, Gakushuin University, Mejiro, Toshimaku, Tokyo, Japan
Hiromi Kobayashi
Affiliation:
Faculty of Science, Gakushuin University, Mejiro, Toshimaku, Tokyo, Japan
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

This list includes many of the datings done from September 1964 to October 1965. The instruments and techniques used for this work are essentially the same as those used previously (Gakushuin III). Bone samples were dated on the organic materials obtained by the following procedure. After washing with distilled water the powdered bone samples were boiled with 10% H2SO4 solution 10 to 40 hours. The extract, a clear solution, was exaporated to almost dryness, and, after concentrated H2SO4 was added, heating was continued until most of the organic compounds became insoluble carbonized or polymerized material. The black residue was washed in water and treated as the usual charcoal sample for dating.

Information

Type
Research Article
Copyright
Copyright © The American Journal of Science