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

Access this Article

Search this Article

Author(s)

Abstract

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.

Journal

  • Earth Science (Chikyu Kagaku)

    Earth Science (Chikyu Kagaku) 21(6), 10-13, 1967

    The Association for the Geological Collaboration in Japan

Codes

  • NII Article ID (NAID)
    110007089892
  • NII NACSIS-CAT ID (NCID)
    AN00141269
  • Text Lang
    JPN
  • ISSN
    0366-6611
  • NDL Article ID
    8295971
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z15-171
  • Data Source
    NDL  NII-ELS  J-STAGE 
Page Top