有機・無機物質からみた天草古第三紀層の続成・変成作用

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タイトル別名
  • Diagenesis and metamorphism of organic and inorganic materials in the Paleogene sedimentary rocks of Amakusa, Kyushu
  • ユウキ ムキ ブッシツ カラ ミタ アマクサ コ ダイ3キソウ ノ ゾクセイ

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抄録

Through the examinations of diagenetic alteration of the Paleogene sedimentary rocks in Amakusa, western Kyushu, using coals, organic particles dispersed in rocks, clays and other minerals, we can point out here the following two features of the present area; namely the one is that the sediments are highly alterated under diagenesis and/or metamorphism compared with those in other coal fields in Kyushu, and the other is that the rank changes locally from the highest in the north region to the lowest in the central one. We regard that the former feature reflects a great amount of accumulation of sediments caused by tectonic subsidence of the basin floor, and the latter a tilting of the area toward the north after tectonic movement and a thermal influence related to igneous intrusions.

収録刊行物

  • 地球化学

    地球化学 14 (1), 1-6, 1980

    一般社団法人日本地球化学会

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