Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event

臼井, 洋一; Ohta, Junichiro; Yasukawa, Kazutaka; Nozaki, Tatsuo; Takaya, Yutaro; Mimura, Kazuhide; Fujinaga, Koichiro; Nakamura, Kentaro; Usui, Yoichi; Kimura, Jun-ichi; Chang, Qing; Kato, Yasuhiro

doi:10.1038/s41598-020-66835-8

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Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event

https://doi.org/10.24517/00067016

名前 / ファイル	ライセンス	アクション
SC-PR-USUI-Y-10-9896.pdf (3.0 MB)

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学術雑誌論文 / Journal Article(1)

公開日

2022-09-02

タイトル

Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event

言語

eng

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資源タイプ識別子

http://purl.org/coar/resource_type/c_6501

資源タイプ

journal article

ID登録

10.24517/00067016

ID登録タイプ

JaLC

著者

WEKO 106521
e-Rad 20609862

	Usui, Yoichi

Search repository

Kimura, Jun-ichi

Chang, Qing
Kato, Yasuhiro

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臼井, 洋一

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内容記述タイプ

Other

内容記述

金沢大学理工研究域地球社会基盤学系

書誌情報

Scientific Reports

巻 10, 号 1, p. 9896, 発行日 2020-06-18

ISSN

収録物識別子タイプ

ISSN

収録物識別子

2045-2322

DOI

関連識別子

10.1038/s41598-020-66835-8

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Nature Research

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内容記述タイプ

Abstract

内容記述

The deep-sea clay that covers wide areas of the pelagic ocean bottom provides key information about open-ocean environments but lacks age-diagnostic calcareous or siliceous microfossils. The marine osmium isotope record has varied in response to environmental changes and can therefore be a useful stratigraphic marker. In this study, we used osmium isotope ratios to determine the depositional ages of pelagic clays extraordinarily rich in fish debris. Much fish debris was deposited in the western North and central South Pacific sites roughly 34.4 million years ago, concurrent with a late Eocene event, a temporal expansion of Antarctic ice preceding the Eocene–Oligocene climate transition. The enhanced northward flow of bottom water formed around Antarctica probably caused upwelling of deep-ocean nutrients at topographic highs and stimulated biological productivity that resulted in the proliferation of fish in pelagic realms. The abundant fish debris is now a highly concentrated source of industrially critical rare-earth elements. © 2020, The Author(s).

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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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VoR

出版タイプResource

http://purl.org/coar/version/c_970fb48d4fbd8a85

関連識別子

https://www.nature.com/srep/

関連識別子

https://www.nature.com/

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2023-07-27 12:30:17.949136

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Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event

× Ohta, Junichiro

× Yasukawa, Kazutaka

× Nozaki, Tatsuo

× Takaya, Yutaro

× Mimura, Kazuhide

× Fujinaga, Koichiro

× Nakamura, Kentaro

× Usui, Yoichi

× Kimura, Jun-ichi

× Chang, Qing

× Kato, Yasuhiro

× 臼井, 洋一

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