書誌事項
- タイトル別名
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- Planktonic foraminiferal biostratigraphy of the Pliocene Kuwae Formation in the Tainai River section, Niigata Prefecture and the age of the base of the No. 3 Globorotalia inflata bed
- Niigata Prefecture and the age of the base of the No. 3 Globorotalia inflata bed
- No. 3 Globorotalia inflata bed下限の年代について
- 公開日
- 2004
- DOI
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- 10.3720/japt.69.272
- 公開者
- 石油技術協会
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説明
Planktonic foraminiferal biostratigraphy is established for the late Pliocene Kuwae Formation exposed along the Tainai River, Kitakanbara district, Niigata Prefecture, central Japan. The Orbulina universa/Globorotalia ikebei Zone(PF 6) and the Neogloboquadrina pachyderma(dextral)/Globorotalia orientalis Zone(PF 7) of Maiya(1978) are recognized in the Kuwae Formation. In addition, No. 3 Globorotalia inflata bed which is characterized by the abundant occurrence of G. inflata group(G. orientalis and G. inflata praeinflata) is identified in the Kuwae Formation. The probable base of the No. 3 G. inflata bed which defines the base of the Nishiyama Stage lies between the FO(first occurrence) of Neodenticula koizumii(diatom, 3.5Ma) and RI(rapid increase) of N koizumii(3.0-3.1Ma), and is dated at about 3.4Ma by interpolation. However, it needs more data of planktonic foraminiferal analysis to confirm the base of the No. 3 G. inflata bed. Globorotalia inflata group occurs intermittently in the Kuwae Formation, suggesting intermittent inflow of relatively warm current into the Sea of Japan during late Pliocene. Systematic code numbers(PF 1-PF 9) are given to the zones of the late Cenozoic planktonic foraminiferal zonation of Maiya(1978).
収録刊行物
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- 石油技術協会誌
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石油技術協会誌 69 (3), 272-283, 2004
石油技術協会
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詳細情報 詳細情報について
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- CRID
- 1390282679037914752
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- NII論文ID
- 130003756071
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- ISSN
- 18814131
- 03709868
- http://id.crossref.org/issn/03709868
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- CiNii Articles
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- 使用不可