High-resolution terrestrial carbon isotope and planktic foraminiferal records of the Upper Cenomanian to the Lower Campanian in the Northwest Pacific

Reishi Takashima, Hiroshi Nishi, Toshiro Yamanaka, Keiichi Hayashi, Amane Waseda, Akiko Obuse, Takashige Tomosugi, Naoki Deguchi, Sunao Mochizuki

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Making Upper Cretaceous biostratigraphic correlations between the Northwest Pacific and Tethyan-Atlantic sections have been difficult because of rare frequencies of age-diagnostic macro- and microfossils in the sequences in the Northwest Pacific region. In order to correlate these sections precisely, an integrated planktic foraminiferal and bulk wood carbon-isotope stratigraphy from the upper Cenomanian to the lower Campanian succession (the middle-upper part of the Yezo Group) of Hokkaido, northern Japan is established with an average resolution of 50 k.y. The δ13C curves from bulk wood of the Yezo Group and from bulk carbonate of English Chalk show remarkably similar patterns of isotopic fluctuation, allowing the correlation of 22 carbon isotopic events between these sections. This high-resolution correlation greatly improves the previous micro- and macrofossil biostratigraphic schemes in the Northwest Pacific region, and reveals that global events, such as the oxygen depletion at the OAE 2 horizon, the constant decrease in pCO2 during the Late Cretaceous, and the eustatic sea-level falls in the late middle Turonian, Santonian/Campanian Boundary and early Campanian, are recorded in the Upper Cretaceous sequence of the Northwest Pacific.

Original languageEnglish
Pages (from-to)570-582
Number of pages13
JournalEarth and Planetary Science Letters
Volume289
Issue number3-4
DOIs
Publication statusPublished - Jan 31 2010

Fingerprint

Carbon Isotopes
Pacific Northwest (US)
carbon isotopes
Campanian
carbon isotope
Wood
microfossil
Cretaceous
Stratigraphy
Calcium Carbonate
high resolution
Carbonates
Sea level
Macros
Carbon
Santonian
Turonian
Oxygen
chalk
stratigraphy

Keywords

  • carbon isotope
  • pCO change
  • planktic foraminifera
  • sea-level change
  • Upper Cretaceous
  • Yezo Group

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

High-resolution terrestrial carbon isotope and planktic foraminiferal records of the Upper Cenomanian to the Lower Campanian in the Northwest Pacific. / Takashima, Reishi; Nishi, Hiroshi; Yamanaka, Toshiro; Hayashi, Keiichi; Waseda, Amane; Obuse, Akiko; Tomosugi, Takashige; Deguchi, Naoki; Mochizuki, Sunao.

In: Earth and Planetary Science Letters, Vol. 289, No. 3-4, 31.01.2010, p. 570-582.

Research output: Contribution to journalArticle

Takashima, R, Nishi, H, Yamanaka, T, Hayashi, K, Waseda, A, Obuse, A, Tomosugi, T, Deguchi, N & Mochizuki, S 2010, 'High-resolution terrestrial carbon isotope and planktic foraminiferal records of the Upper Cenomanian to the Lower Campanian in the Northwest Pacific', Earth and Planetary Science Letters, vol. 289, no. 3-4, pp. 570-582. https://doi.org/10.1016/j.epsl.2009.11.058
Takashima, Reishi ; Nishi, Hiroshi ; Yamanaka, Toshiro ; Hayashi, Keiichi ; Waseda, Amane ; Obuse, Akiko ; Tomosugi, Takashige ; Deguchi, Naoki ; Mochizuki, Sunao. / High-resolution terrestrial carbon isotope and planktic foraminiferal records of the Upper Cenomanian to the Lower Campanian in the Northwest Pacific. In: Earth and Planetary Science Letters. 2010 ; Vol. 289, No. 3-4. pp. 570-582.
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