新潟県魚沼層群 SK030 火山灰層中のジルコン双晶：形態，累帯構造，内部構造

• 村松 敏雄

  新潟大学大学院自然科学研究科

• 赤井 純治

  新潟大学理学部地質科学教室

書誌事項

タイトル別名

• Twinned zircon from SK030 volcanic ash layer in Uonuma Group, Niigata Prefecture: morphology, zonal structure and internal structure
• ニイガタケン ウオヌマソウグン SK030 カザンバイソウ チュウ ノ ジルコンソウショウ : ケイタイ,ルイタイ コウゾウ,ナイブ コウゾウ

抄録

  Twin crystals of zircon in SK030 volcanic ash layer in Uonuma Formation, which is Cenozoic strata in Niigata Prefecture, central Japan, were examined mineralogically. Zircon in the SK030 layer was along with monazite, xenotime and corundum crystals. Major twin types were contact twin and penetration twin. Based on the twin forms, the former is subdivided into Fan–type I and II, and the latter into Wedge–type I and II. Cathod luminescence (CL) images of the zircon twins showed growth layer. In zircon crystals with the penetration twin, complex growth patterns were observed. Based on high resolution transmission electron micorscopic images and reciprocal lattice analysis of the corresponding ED patterns of the twin structure, the twin plane was determined as {112} plane.<br>

収録刊行物

• 岩石鉱物科学

  岩石鉱物科学 42 (4), 174-184, 2013

  一般社団法人　日本鉱物科学会

キーワード

• Zircon
• Twinning
• Volcanic ash layer
• Monazite
• Xenotime
• Twin plane
• HRTEM
• CL
• Uonuma Formation

詳細情報

• CRID: 1390001206525292928
• NII論文ID: 10031191337
• NII書誌ID: AA1146088X
• DOI: 10.2465/gkk.121102
• ISSN: 13497979
• ISSN: 1345630X
• NDL書誌ID: 024897124
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024897124
• 本文言語コード: ja
• データソース種別:
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  • NDL
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