Amphibolite-facies metamorphic rocks of the Mt. Tenzan area, northern Kyushu, Southwest Japan : Correlation with the Higo metamorphic rocks

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The metamorphic rocks exposed in the Sefuri and Tenzan areas, northwestern Kyushu, are composed mainly of mafic rocks with trace amounts of pelitic, ultramafic and calc-silicate rocks and crystalline limestone occurring as lenses or blocks. These rocks underwent regional metamorphism prior to the Cretaceous intrusive rocks. The metamorphic rocks in the Tenzan area, south of the Sefuri area, underwent amphibolite-facies metamorphism and estimated metamorphic <i>P-T</i> conditions of these rocks reach up to 700 °C and 4.0 kbar. On the other hand, the metamorphic conditions in the Sefuri area have been reported to be up to 850 °C and 5.5 kbar. The metamorphic <i>P-T-t</i> path of northwestern Kyushu is interpreted as a clockwise trajectory. These <i>P-T</i> conditions and lithological features suggest that the metamorphic rocks of northwestern Kyushu can be correlated with those of the Higo metamorphic terrane, which is thought to be a candidate of the eastern extension of collision zone between the North China and the South China cratons during Late Permian to the Triassic periods.

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  • Journal of mineralogical and petrological sciences  

    Journal of mineralogical and petrological sciences 103(4), 291-296, 2008-08-01 

    日本鉱物科学会

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各種コード

  • NII論文ID(NAID)
    10021370048
  • NII書誌ID(NCID)
    AA11460926
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    13456296
  • データ提供元
    CJP書誌  J-STAGE 
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