[Updated on Apr. 18] Integration of CiNii Articles into CiNii Research

Jurassic and Cretaceous radiolarian fossils from the Mesozoic formations in the Kurosegawa Belt, eastern Shima Peninsula, Mie Prefecture

  • Ohta Tohru
    Faculty of Education and Integrated Arts and Sciences, Waseda University
  • Imai Tomofumi
    Graduate School of Creative Science and Engineering, Waseda University present address: Hokuriku Branch, Chunichi Shimbun Co., Ltd.
  • Ishida Naoto
    Venture Business Laboratory, Niigata University
  • Saka Yukiyasu
    c/o Faculty of Education and Integrated Arts and Sciences, Waseda University

Bibliographic Information

Other Title
  • 三重県志摩半島東部の黒瀬川帯中生界から見出されたジュラ紀・白亜紀放散虫化石
  • ミエケン シマハントウ トウブ ノ クロセガワタイ チュウセイカイ カラ ミイダサレタ ジュラキ ・ ハクアキ ホウサンチュウ カセキ

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This study re-examines the depositional age, lithostratigraphy, and distribution of Mesozoic sedimentary formations in the section of the Kurosegawa Belt that outcrops in the Toba area, eastern Shima Peninsula, Mie Prefecture, Japan. In this area, Mesozoic successions are divided into the Jurassic Shiranezaki Formation and the Cretaceous Matsuo Group. We collected Bajocian and Callovian–Oxfordian age radiolarians from the Shiranezaki Formation and Valanginian–Barremian age radiolarians from the Matsuo Group. The lithology and age constraints provided by these collected radiolarians suggest that part of the previously defined Matsuo Group actually forms part of the Shiranezaki Formation, with this formation being stratigraphically overlain by the Matsuo Group across a disconformity.


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