Quantitative Description of Zircon Morphological Diagram

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  • NOUMI Yousuke
    Department of Geosciences, Faculty of Science, Osaka City University
  • WADATSUMI Kiyoshi
    Department of Biosphere and Geosphere System, Faculty of Informatics, Okayama University of Science
  • MASUMOTO Shinji
    Department of Geosciences, Faculty of Science, Osaka City University

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Other Title
  • ジルコン結晶形態分類図の数値表現
  • ジルコン ケッショウ ケイタイ ブンルイズ ノ スウチ ヒョウゲン

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Abstract

The mathematical function for quantiative description of zircon crystals was incorporated into the Computerized Image-Prossesing System for Fission Track Dating (LIPS-FTD) . This function enables the crystal form measurement and description of the zircon morphology and is useful in fission track dating. The mathemitical function was used to measure the zircon crystal form and the Pyramid and Prism Indices were compared with the values of the zircon morphological classification diagram by Pupin. Further, the Pyramid and Prism indices of zircon samples from the Greenhorn Formation in Utha, USA, were determined and compared with INDICES A and T determined from the Pupin's diagram. Based on the enhancement of the CIPS-FTD, detrital zircon in acidic tuff beds could be identified.

Journal

  • Geoinformatics

    Geoinformatics 8 (3), 149-155, 1997

    Japan Society of Geoinformatics

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