北海道幌満産かんらん岩中の斜長石について On the Plagioclase Feldspar in the Peridotite Mass, in the Horoman Area, Hokkaido

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At the southern end of the Hidaka plutonic and metamorphic belt, a large ultrabasic intrusive mass occurs. In this ultrabasic mass, various kinds of rock facies exist, such as dunite, peridotite, plagioclase peridotite and gabbro. In gabbro and plagioclase peridotite, plagioclase is one of the essential minerals in some cases and of the accessary minerals in other cases. The plagioclase feldspar is labradorite or bytownite and contains a little Or-molecule. X-ray powder diffraction patterns of the plagioclase feldspar show that most of them are not of the typical low-temperature form. From this fact, it is tho.ught that the plagioclase feldspar grew under the comparatively high-temperature condition.

収録刊行物

  • 地球科学

    地球科学 21(6), 10-13, 1967

    地学団体研究会

各種コード

  • NII論文ID(NAID)
    110007089892
  • NII書誌ID(NCID)
    AN00141269
  • 本文言語コード
    JPN
  • ISSN
    0366-6611
  • NDL 記事登録ID
    8295971
  • NDL 雑誌分類
    ZM41(科学技術--地球科学)
  • NDL 請求記号
    Z15-171
  • データ提供元
    NDL  NII-ELS  J-STAGE 
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