A Quantitative Study for Distribution of Pottery Containing Typical Mineral Particle from Jomon Period to Kofun Period

本研究是对含典型颗粒角闪孔陶器分布变化的研究。在弥生和古坟时期，含角闪孔陶器的分布仅限于大阪和奈良县的Ikoma山附近。但绳纹时期的分布尚未得到定量研究。对含绳纹陶器的角闪孔分布进行了定量研究，发现其分布范围比弥生和古坟时期更广。角闪孔中陶器的含量与离伊科马山的距离无关。这一事实表明，有一些地方生产粘土或矿物颗粒含有角闪孔。我们数了数含有角闪孔的陶器，清水用偏光显微镜观察了一些陶器。观察结果表明我们的计数是正确的，尽管我们计数的角闪孔中含有的一些陶器含有辉石。

This study is a study for changes of distributions of pottery containing typical particle Amphibole. In Yayoi and Kofun period, the distributions of Amphibole contained pottery are restricted around Mt. Ikoma in Osaka and Nara Prefectures. But the distributions in Jomon period have not been studied quantitatively. We studied the distributions of Amphibole contained Jomon pottery quantitatively, and showed that those were broader than of Yayoi and Kofun period. The rates of Amphibole contained pottery is not related with distances from Mt.Ikoma. This fact suggests that there were some places producing clay or mineral particles contained Amphibole. We counted numbers of pottery contained Amphibole, and Shimizu checked some pottery with observation by a polarizing microscope. The result of observation showed our counting was correct, though some pottery we counted Amphibole contained were containing pyroxene.