Prevailing oxic environments in the Pacific Ocean during the mid-Cretaceous Oceanic Anoxic Event 2

Reishi Takashima; Hiroshi Nishi; Toshiro Yamanaka; Takashige Tomosugi; Allan G. Fernando; Kazushige Tanabe; Kazuyoshi Moriya; Fumihisa Kawabe; Keiichi Hayashi

doi:10.1038/ncomms1233

Prevailing oxic environments in the Pacific Ocean during the mid-Cretaceous Oceanic Anoxic Event 2

Reishi Takashima, Hiroshi Nishi, Toshiro Yamanaka, Takashige Tomosugi, Allan G. Fernando, Kazushige Tanabe, Kazuyoshi Moriya, Fumihisa Kawabe, Keiichi Hayashi

Museum

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

The occurrence of Oceanic Anoxic Event 2 (OAE2) 94 million years ago is considered to be one of the largest carbon cycle perturbations in the Earth's history. The marked increase in the spatial extent of the anoxic conditions in the world's oceans associated with OAE2 resulted in the mass accumulation of organic-rich sediments. Although extensive oceanographic studies of OAE2 have been undertaken in the Atlantic Ocean, the Tethys Sea, and the epicontinental seas of Europe and America, little is known about OAE2 in the Pacific Ocean. Here, we present high-resolution carbon-isotope and degree of pyritization (DOP) data from marine sequences that formed along the continental margins of North America and Asia below the northeastern and northwestern Pacific Ocean. The predominance of low DOP values in these areas revealed that the continental margins of the Pacific Ocean were oxic for most of the OAE2 interval.

Original language	English
Article number	234
Journal	Nature communications
Volume	2
Issue number	1
DOIs	https://doi.org/10.1038/ncomms1233
Publication status	Published - 2011

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1038/ncomms1233

Cite this

@article{d4a52b9a75114ed28cfb0b18bd688cf5,

title = "Prevailing oxic environments in the Pacific Ocean during the mid-Cretaceous Oceanic Anoxic Event 2",

abstract = "The occurrence of Oceanic Anoxic Event 2 (OAE2) 94 million years ago is considered to be one of the largest carbon cycle perturbations in the Earth's history. The marked increase in the spatial extent of the anoxic conditions in the world's oceans associated with OAE2 resulted in the mass accumulation of organic-rich sediments. Although extensive oceanographic studies of OAE2 have been undertaken in the Atlantic Ocean, the Tethys Sea, and the epicontinental seas of Europe and America, little is known about OAE2 in the Pacific Ocean. Here, we present high-resolution carbon-isotope and degree of pyritization (DOP) data from marine sequences that formed along the continental margins of North America and Asia below the northeastern and northwestern Pacific Ocean. The predominance of low DOP values in these areas revealed that the continental margins of the Pacific Ocean were oxic for most of the OAE2 interval.",

author = "Reishi Takashima and Hiroshi Nishi and Toshiro Yamanaka and Takashige Tomosugi and Fernando, {Allan G.} and Kazushige Tanabe and Kazuyoshi Moriya and Fumihisa Kawabe and Keiichi Hayashi",

note = "Funding Information: We are grateful to M. A. Murphy, K. Kurihara, Y. Omori and S. Mochizuki for their support with fieldwork and to K. Tomita for operating ICP-AES. In addition, we would like to acknowledge two reviewers and D. H. Mathew for their helpful comments. This work was financially supported by Grants-in-Aid from the Japan Society for the Promotion of Science (No. 15340176 to H.N. and No. 18403013 to K.T.) and the Sumitomo Fundation (No. 090094 to R. T.).",

year = "2011",

doi = "10.1038/ncomms1233",

language = "English",

volume = "2",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Nature Publishing Group",

number = "1",

}

TY - JOUR

T1 - Prevailing oxic environments in the Pacific Ocean during the mid-Cretaceous Oceanic Anoxic Event 2

AU - Takashima, Reishi

AU - Nishi, Hiroshi

AU - Yamanaka, Toshiro

AU - Tomosugi, Takashige

AU - Fernando, Allan G.

AU - Tanabe, Kazushige

AU - Moriya, Kazuyoshi

AU - Kawabe, Fumihisa

AU - Hayashi, Keiichi

N1 - Funding Information: We are grateful to M. A. Murphy, K. Kurihara, Y. Omori and S. Mochizuki for their support with fieldwork and to K. Tomita for operating ICP-AES. In addition, we would like to acknowledge two reviewers and D. H. Mathew for their helpful comments. This work was financially supported by Grants-in-Aid from the Japan Society for the Promotion of Science (No. 15340176 to H.N. and No. 18403013 to K.T.) and the Sumitomo Fundation (No. 090094 to R. T.).

PY - 2011

Y1 - 2011

N2 - The occurrence of Oceanic Anoxic Event 2 (OAE2) 94 million years ago is considered to be one of the largest carbon cycle perturbations in the Earth's history. The marked increase in the spatial extent of the anoxic conditions in the world's oceans associated with OAE2 resulted in the mass accumulation of organic-rich sediments. Although extensive oceanographic studies of OAE2 have been undertaken in the Atlantic Ocean, the Tethys Sea, and the epicontinental seas of Europe and America, little is known about OAE2 in the Pacific Ocean. Here, we present high-resolution carbon-isotope and degree of pyritization (DOP) data from marine sequences that formed along the continental margins of North America and Asia below the northeastern and northwestern Pacific Ocean. The predominance of low DOP values in these areas revealed that the continental margins of the Pacific Ocean were oxic for most of the OAE2 interval.

AB - The occurrence of Oceanic Anoxic Event 2 (OAE2) 94 million years ago is considered to be one of the largest carbon cycle perturbations in the Earth's history. The marked increase in the spatial extent of the anoxic conditions in the world's oceans associated with OAE2 resulted in the mass accumulation of organic-rich sediments. Although extensive oceanographic studies of OAE2 have been undertaken in the Atlantic Ocean, the Tethys Sea, and the epicontinental seas of Europe and America, little is known about OAE2 in the Pacific Ocean. Here, we present high-resolution carbon-isotope and degree of pyritization (DOP) data from marine sequences that formed along the continental margins of North America and Asia below the northeastern and northwestern Pacific Ocean. The predominance of low DOP values in these areas revealed that the continental margins of the Pacific Ocean were oxic for most of the OAE2 interval.

UR - http://www.scopus.com/inward/record.url?scp=79952470964&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952470964&partnerID=8YFLogxK

U2 - 10.1038/ncomms1233

DO - 10.1038/ncomms1233

M3 - Article

C2 - 21407200

AN - SCOPUS:79952470964

SN - 2041-1723

VL - 2

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 234

ER -

Prevailing oxic environments in the Pacific Ocean during the mid-Cretaceous Oceanic Anoxic Event 2

Abstract

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this