@article{oai:nagoya.repo.nii.ac.jp:00004795, author = {武邊, 勝道 and TAKEBE, Masamichi and 鶴留, 浩和 and TURUDOME, Hirokazu and 赤川, 史典 and AKAGAWA, Fuminori and 山本, 鋼志 and YAMAMOTO, Koshi and 吉田, 英一 and YOSHIDA, Hidekazu}, journal = {名古屋大学博物館報告}, month = {}, note = {It is known that the technology and culture of “Tatara iron making” have developed in Okuizumo, Shimane, Japan from ancient time. In order to clarify the relation between the development of Tatara iron making and geochemical feature in the region, this study analyzed the chemistry of stream sediments in Yokota, Okuizumo and made geochemical maps. The research area consists mainly of felsic igneous rocks. The igneous rocks extend from northeast to southwest and show parallel distribution with a few kilometers in width. The distribution of these rocks affects the element compositions of stream sediments. The sediments from area, in which the Yokota granodiorite is distributed, show high concentrations of Fe, MgO and CaO and low concentrations of SiO2. The sediments from area composed of the other rocks show opposite geochemical features. Stream sediments from Yokota area are entirely characterized by high Fe concentration. The average Fe concentration is 7.1% and some samples show higher Fe concentration than 15%. The average concentration is higher than twice of Fe concentration of JG-1a, JG-2, and JG-3. Samples, of which magnetic component are removed, show lower Fe concentration than that of bulk ones. The removed components of the samples show X-ray diffraction patterns with peaks of magnetite and hematite. Therefore, the high Fe contents of the stream sediments are ascribed to high content of magnetite, which is principal mineral for Tatara iron making. The enrichment of magnetite in Yokota may play an important role in development of the industry. While, there is no distinct relation between the distributions of Fe concentration and Tatara ruins in Yokota, suggesting additional requirements for the development of Tatara iron making., 国立情報学研究所で電子化したコンテンツを使用している。}, pages = {33--41}, title = {島根県仁多郡東出雲町横田地域の土壌の化学組成とたたら製鉄の関係}, volume = {21}, year = {2005} }