Proceedings of the Japan Academy, Series B
Online ISSN : 1349-2896
Print ISSN : 0386-2208
ISSN-L : 0386-2208
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Volume 70, Issue 1
Displaying 1-3 of 3 articles from this issue
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  • Lead Isotope Ratios of the White Glazes of the Sherds Excavated at A'Ali, an Archaeological Site in Bahrain
    Tatsuo SASAKI, Hiroshi SHIRAHATA, Kazuo YAMASAKI
    1994 Volume 70 Issue 1 Pages 1-3
    Published: 1994
    Released on J-STAGE: October 13, 2006
    DOIhttps://doi.org/10.2183/pjab.70.1
    JOURNAL FREE ACCESS
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    The lead isotope ratios of the white glazes of pottery sherds excavated at an archaeological site of the 9th century, A'Ali in Bahrain on the coast of the Persian Gulf were measured by mass spectroscopy to find their provenances. The lead isotope ratios agreed with those of the Iranian lead ores and archaeological objects, indicating the Iranian origin of these pottery sherds.
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  • Radiocarbon Dating Study of Ancient Iron Artifacts with Accelerator Mass Spectrometry
    Kenzo IGAKI, Toshio NAKAMURA, Masahiro HIRASAWA, Masako KATO, Masamich ...
    1994 Volume 70 Issue 1 Pages 4-9
    Published: 1994
    Released on J-STAGE: October 13, 2006
    DOIhttps://doi.org/10.2183/pjab.70.4
    JOURNAL FREE ACCESS
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    In order to study the correlation between the highly resistive property against corrosion and the production method of the ancient iron artifacts, it is essentially necessary to determine the accurate ages of them. 14C dating with accelerator mass spectrometry was applied to the two ancient artifacts, a Japanese sword of wroughtiron with a production age ranged from the Kamakura to the Muromachi period, estimation based on the fabrication technique, and a planing adze of cast iron with no definite origin. The former was dated as 880±150 y.B.P., corresponding to the calendar age ranged from AD 1021 to AD 1263, and the latter as 1720±160 y.B.P. with the calendar age ranged from AD 119 to AD 457 and from AD 483 to AD 508. These calibrated 14C ages for both iron artifacts are consistent with the relevant ages conjectured by historical considerations.
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  • A New Species of Boletus Sect. Boletus from Japan
    Eiji NAGASAWA
    1994 Volume 70 Issue 1 Pages 10-14
    Published: 1994
    Released on J-STAGE: October 13, 2006
    DOIhttps://doi.org/10.2183/pjab.70.10
    JOURNAL FREE ACCESS
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    Boletus hiratsukae, sp. nov. is described and illustrated from Japan. It belongs to section Boletus and is characterized by the fuliginous to dark brown color of both the pileus and stipe, a dry, pruinose-subvelutinous pileus without any rugosity throughout its development, and by a palisade trichodermium structure of the pileipellis in which the element hyphae are often submoniliform with shortened, more or less inflated, terminal and subterminal cells. Data on the habitat suggest that it may form mycorrhizal associations with members of Pinaceae, especially Abies and Pinus.
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