中華人民共和国河南省および河北省における長繊維状セピオライトの産状について

• 坂本 尚史

  千葉科学大学危機管理学部環境安全システム学科

• 水戸 洋彦

  昭和KDE株式会社新商品開発部

• 山崎 淳司

  早稲田大学理工学部環境資源工学科

• 地下 まゆみ

  千葉科学大学危機管理学部環境安全システム学科

書誌事項

タイトル別名

• Occurrences and Mineralogical Properties of Fibrous Sepiolites from Henan and Hebei Province, China

抄録

Sepiolite is one of a magnesium bearing clay minerals having fibrous morphology, and is used as industrial raw material as adsorbent, filler, and so on. Considerable amount of sepiolite have hitherto been imported from U.S.A., Spain, and Turkey. These sepiolites are well-crystallized a-sepiolite showing no visible fibrous morphology. Recently, macroscopically fibrous sepiolite came to import from China. However, in so far as our knowledge, its occurrence and mineralogical properties have not been reported yet.<BR>In this paper, mode of occurrences and mineralogical properties of macroscopically fibrous sepiolite from four deposits in Henan and Hebei Province, China is reported. In these deposits, sepiolite has been formed as veins crossing dolomitic limestone and crystalline limestone of Precambrian Era developed near the deposits. The XRD study clearly indicates that these minerals are well crystallized a-sepiolite with a small amount of calcite. In some cases, talc and/or tremolite was found as a minor impurity. Mineralogical data such as TG-DTA curves, chemical composition, SEM and TEM, etc. are also presented. The mode of occurrence as well as mineralogical properties of the sepiolite confirm that the sepiolite under consideration is a mineralization product by hydrothermal solution charged with magnesium, silica, etc., moving along the channelways created by fissuring.

収録刊行物

• 粘土科学

  粘土科学 45 (3), 188-199, 2006

  一般社団法人 日本粘土学会

キーワード

• Sepiolite
• Macroscopic fiber
• Occurrence
• Mineralogical properties
• China

詳細情報

• CRID: 1390282679088313984
• NII論文ID: 130004307785
• DOI: 10.11362/jcssjnendokagaku1961.45.188
• ISSN: 21863563
• ISSN: 04706455
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可