抄録
Biostratigraphic correlations of inoceramid bivalves between the North Pacific and Euramerican provinces have been difficult because the inoceramid biostratigraphy of the Japanese strata has been based on endemic species of the northwest Pacific. In this study, carbon stable isotope fluctuations of terrestrial organic matter are assembled for the Upper Cretaceous Yezo Group in the Haboro and Obira areas, Hokkaido, Japan, in order to revise the chronology of the inoceramid biozonation in Japan. The carbon isotope curves are correlated with those of marine carbonates in English and German sections with the aid of age-diagnostic taxa. According to the correlations of the carbon isotope curves, 11 isotope events are recognised in the sections studied. As a result of these correlations, the chronology of the inoceramid biozones of the Northwest Pacific has been considerably revised. The revised inoceramid biozones suggest that the timing of the origination and extinction of the inoceramids in the North Pacific biotic province is different from the stage/substage boundaries defined by inoceramids, as used in Europe and North America.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 239-263 |
| ページ数 | 25 |
| ジャーナル | Acta Geologica Polonica |
| 巻 | 63 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | Published - 2013 6 |
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ASJC Scopus subject areas
- Geology
これを引用
A revised inoceramid biozonation for the Upper Cretaceous based on high-resolution carbon isotope stratigraphy in northwestern Hokkaido, Japan. / Hayakawa, Tatsuya; Hirano, Hiromichi.
：: Acta Geologica Polonica, 巻 63, 番号 2, 06.2013, p. 239-263.研究成果: Article
}
TY - JOUR
T1 - A revised inoceramid biozonation for the Upper Cretaceous based on high-resolution carbon isotope stratigraphy in northwestern Hokkaido, Japan
AU - Hayakawa, Tatsuya
AU - Hirano, Hiromichi
PY - 2013/6
Y1 - 2013/6
N2 - Biostratigraphic correlations of inoceramid bivalves between the North Pacific and Euramerican provinces have been difficult because the inoceramid biostratigraphy of the Japanese strata has been based on endemic species of the northwest Pacific. In this study, carbon stable isotope fluctuations of terrestrial organic matter are assembled for the Upper Cretaceous Yezo Group in the Haboro and Obira areas, Hokkaido, Japan, in order to revise the chronology of the inoceramid biozonation in Japan. The carbon isotope curves are correlated with those of marine carbonates in English and German sections with the aid of age-diagnostic taxa. According to the correlations of the carbon isotope curves, 11 isotope events are recognised in the sections studied. As a result of these correlations, the chronology of the inoceramid biozones of the Northwest Pacific has been considerably revised. The revised inoceramid biozones suggest that the timing of the origination and extinction of the inoceramids in the North Pacific biotic province is different from the stage/substage boundaries defined by inoceramids, as used in Europe and North America.
AB - Biostratigraphic correlations of inoceramid bivalves between the North Pacific and Euramerican provinces have been difficult because the inoceramid biostratigraphy of the Japanese strata has been based on endemic species of the northwest Pacific. In this study, carbon stable isotope fluctuations of terrestrial organic matter are assembled for the Upper Cretaceous Yezo Group in the Haboro and Obira areas, Hokkaido, Japan, in order to revise the chronology of the inoceramid biozonation in Japan. The carbon isotope curves are correlated with those of marine carbonates in English and German sections with the aid of age-diagnostic taxa. According to the correlations of the carbon isotope curves, 11 isotope events are recognised in the sections studied. As a result of these correlations, the chronology of the inoceramid biozones of the Northwest Pacific has been considerably revised. The revised inoceramid biozones suggest that the timing of the origination and extinction of the inoceramids in the North Pacific biotic province is different from the stage/substage boundaries defined by inoceramids, as used in Europe and North America.
KW - Carbon isotope stratigraphy
KW - Hokkaido
KW - Inoceramid biozones
KW - Japan
KW - Upper Cretaceous
KW - Yezo Group
UR - http://www.scopus.com/inward/record.url?scp=84881515937&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881515937&partnerID=8YFLogxK
U2 - 10.2478/agp-2013-0010
DO - 10.2478/agp-2013-0010
M3 - Article
AN - SCOPUS:84881515937
VL - 63
SP - 239
EP - 263
JO - Acta Geologica Polonica
JF - Acta Geologica Polonica
SN - 0001-5709
IS - 2
ER -