第四紀テフラの高精度フィッション・トラック（ＦＴ）年代測定　ジルコンとガラスを用いた測定法の確立に向けて

• 檀原 徹

  (株)京都フィッション・トラック

書誌事項

タイトル別名

• Towards Precise Measurement of Zircon and Glass Fission-Track Geochronology for Quaternary Tephras.
• ダイ4キ テフラ ノ コウ セイド フィッション トラック FT ネンダイ ソ
• ジルコンとガラスを用いた測定法の確立に向けて

抄録

Fission track dating has been based on zeta calibration by age-standard samples since the I. U. G. S. recommended standardization of fission track age calibration (Hurford, 1990a, b). For the Quaternary tephras, fission track dates are commonly obtained from zircon and glass using the external detector method (ED1 for internal surface, ED2 for external surface) and the Isothermal Plateau Fission-Track (ITP-FT) correction method, respectively. International and domestic issues of fission track dating for zircon and glass are reviewed in this paper. The author also tabulates and compares reliability and precision of zircon and glass dating methods.<br>The following three points are keys to the accuracy of fission track dating in the Quaternary period: 1) precise determination of the zeta factor, 2) careful treatment of low spontaneous track density, and 3) recognition of essential grains. The precision of a measurement is strongly controlled by the number of spontaneous tracks.<br>The author presents zircon fission track dates for five representative wide spread Quaternary tephras in Japan by using the ED2 method on the external crystal surface; this method is suitable for precise fission track geochronology of Quaternary tephras.

収録刊行物

• 第四紀研究

  第四紀研究 34 (3), 221-237, 1995

  日本第四紀学会

キーワード

• 高精度FT年代測定
• ゼータ較正
• 第四紀テフラ
• ジルコン
• ガラス

詳細情報

• CRID: 1390282681472495616
• NII論文ID: 10002633018
• NII論文ID: 10003566626
• NII論文ID: 10004495221
• NII書誌ID: AN0034136X
• DOI: 10.4116/jaqua.34.221
• ISSN: 18818129
• ISSN: 04182642
• ISSN: http://id.crossref.org/issn/04182642
• NDL書誌ID: 3624183
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3624183
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可