信楽粘土と粘土鉱物ならびに粘土鉱床の生成環境

スポンサーリンク

概要

• 論文の詳細を見る

• Excellent clay raw materials such as the ‘Gaerome’ and ‘Kibushi’ clays lie in the lower part of ‘Shigaraki’ clay stratum overlying basal granite. The ‘Gaerome’ clay contains mainly coarser grains of quartz and weathered feldspar, and the ‘Kibushi’ clay is stained into dark brown by organic matter. The ‘Gaerome’ and ‘Kibushi’ clays mostly contain the kaolinite and are accompanied with hydrated halloysite. Under electron-microcopic observation, we can find that the large flakes of kaoline minerals have curled shape and the small particles appear to be rolled into tube-like forms. The white clay (Shirae) that is weathering product of volcanic ash generally contains the hydrated halloysite of lettuce- or cabbage-like forms, tubular and curled shapes. The clays in the upper part of ‘Shigaraki’ sand-silt stratum have a small quantity of montmorillonite.The clay stratums of ‘Shigaraki and Iga’ districts were deposited (first), under warm climate condition, on the basement rocks and ‘Shigaraki’ sand-silt stratum and ‘Shigaraki’ mud stratum accumulated on it. The original formation of present geographical features in the ‘Shigaraki’ plateau was constructed by abrupt compression of E-W direction in the middle period of Diluvial epoch. Considering the history of later basal movement and erosion, we can understand the formation of main faults and the variety of clay deposit in ‘Shigaraki’ district.

• 社団法人日本セラミックス協会の論文
• 1974-01-01

著者

• 柿谷 悟

  広島大学理

• 柿谷 悟

  広島大学理学部

関連論文

• 45.粘土細脈の生成機構について
• 島根県飯石郡三刀屋町付近のセリサイト鉱床中の雲母粘土鉱物
• 花崗岩中の粘土細脈を構成する雲母粘土鉱物・モンモリロナイト鉱物・雲母-膨潤層混合層鉱物
• 広島県賀茂郡八本松町の花崗岩中にある白色粘土細脈
• 広島県安芸郡音戸町の花崗岩中にある青緑色粘土細脈
• 風化花崗岩中の黒雲母の変質
• 特別企画中国地方の砂(1)砂のおいたち(第十五回土質工学研究発表会)
• 信楽粘土と粘土鉱物ならびに粘土鉱床の生成環境
• 滋賀県信楽地域の地質と粘土鉱床
• 広島県における花嵩岩の風化と地形

スポンサーリンク