Oriented growth of chlorite and zoisite in plagioclase as alteration products. examples of graphoepitaxy.

• SUZUKI Masaya

  Mineralogical Institute, Graduate School of Science, University of Tokyo

• TAGAI Tokuhei

  Mineralogical Institute, Graduate School of Science, University of Tokyo

• HOSHI Takeshi

  Mineralogical Institute, Graduate School of Science, University of Tokyo

• TAKEDA Hiroshi

  Mineralogical Institute, Graduate School of Science, University of Tokyo

抄録

Chlorite and zoisite were observed as alteration products in a plagioclase from the archean anorthosite complex, Ontario, Canada. They were often grown as layers along cleavages of the host plagioclase. The orientation relations between alteration products and host plagioclase were determined using X-ray diffraction. C^*_chlorite was parallel to c^*_plagioclase. There are many chlorite grains where a- and b-axes of chlorite grains show no crystallographically significant orientation in (001) of plagioclase with keeping c^*_chlorite//c^*_plagioclase, A^*_zoisite was nearly parallel to c^*_plagioclase and b_zoisite was parallel to a_plagiociase. However, no lattice matchings were found between host plagioclase and the alteration products. It can be concluded that chlorite and zoisite grew on the surface of (001) cleavage of plagioclase according to the graphoepitaxy process.

収録刊行物

• Ｍｉｎｅｒａｌｏｇｉｃａｌ　Ｊｏｕｒｎａｌ

  Ｍｉｎｅｒａｌｏｇｉｃａｌ　Ｊｏｕｒｎａｌ 17 (4), 181-188, 1994

  一般社団法人　日本鉱物科学会

キーワード

• General Earth and Planetary Sciences
• General Environmental Science

詳細情報

• CRID: 1390282681523066368
• NII論文ID: 10008771088
• NII書誌ID: AA00739590
• DOI: 10.2465/minerj.17.181
• ISSN: 18814174
• ISSN: 05442540
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可