Conglomerate in the Kuroze Formation of the Miocene Shidara Group, eastern Aichi Prefecture, central Japan:

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  • Yabuta Sakurako
    Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University
  • Takeuchi Makoto
    Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University Geological Survey of Japan, AIST
  • Saito Makoto
    Geological Survey of Japan, AIST

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Other Title
  • 愛知県東部中新統設楽層群玖老勢層に産する礫岩：
  • 愛知県東部中新統設楽層群玖老勢層に産する礫岩 : 北設亜層群堆積期における後背地の変化
  • アイチケン トウブ チュウ シントウシタラソウグンキュウロウ ゼイソウ ニ サンスル レキガン : キタセツアソウグン タイセキキ ニ オケル コウハイチ ノ ヘンカ
  • Change in the provenance during the deposition of the Hokusetsu Subgroup
  • 北設亜層群堆積期における後背地の変化

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<p>The Kuroze Formation in the upper part of the Miocene Hokusetsu Subgroup contains several conglomerate beds with channel structures. Based on thin section observations, the conglomerate clasts are mainly volcanic rock and chert, with minor tuff, tuff breccia, granitoid, quartzite, siliceous mudstone, mudstone, sandstone, and mylonite. Radiolarian fossils in the siliceous mudstone clasts indicate a Middle Jurassic age. In the lower part of the succession, sediments were supplied from the Ryoke granitic and metamorphic basement rocks, whereas in the upper part of the succession, they were derived from more extensive Jurassic and older strata.</p>

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