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Depositional Environments Revealed From Biomarkers in Sediments Deposited During the Mid-Cretaceous Oceanic Anoxic Events (OAEs) in the Vocontian Basin (SE France)

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タイトル: Depositional Environments Revealed From Biomarkers in Sediments Deposited During the Mid-Cretaceous Oceanic Anoxic Events (OAEs) in the Vocontian Basin (SE France)
著者: Okano, Kazuki 著作を一覧する
Sawada, Ken 著作を一覧する
Takashima, Reishi 著作を一覧する
Nishi, Hiroshi 著作を一覧する
Okada, Hisatake 著作を一覧する
キーワード: OAE
Thiophene
Sulfur content
Redox condition
Terrestrial input
発行日: 2008年
出版者: 21st Century COE for Neo-Science of Natural History, Hokkaido University
引用: Edited by Hisatake Okada, Shunsuke F. Mawatari, Noriyuki Suzuki, Pitambar Gautam. ISBN: 978-4-9903990-0-9
誌名: Origin and Evolution of Natural Diversity : Proceedings of the International Symposium, The Origin and Evolution of Natural Diversity, held from 1-5 October 2007 in Sapporo, Japan
開始ページ: 233
終了ページ: 238
抄録: Biomarker and total sulfur (TS) analyses were carried out on laminated black shales and massive marls collected from Goguel level (OAE1a) and the Kilian and the Paquier levels (OAE1b) in the Vocontian Basin in southeast France. Total sulfur content and concentrations of thiophenes are abundant in the Goguel level, whereas furans and retene, which are originated from terrestrial plants, are predominant in the Kilian and the Paquier levels. These results suggests the expansion of intense anoxic waters to deep ocean during the deposition of Goguel level rather than during the periods covered by the Kilian and the Paquier levels. In contrast, the Kilian and the Paquier sediments are characterized by a large amount of terrestrial input. Therefore, it is inferred that OAE1a was associated with supplying a large amount of sulfur to the ocean, possibly by active volcanisms, whereas OAE1b was caused by a large amount of terrestrial matter and fresh water input.
記述: International Symposium, "The Origin and Evolution of Natural Diversity". 1–5 October 2007. Sapporo, Japan.
資料タイプ: proceedings
URI: http://hdl.handle.net/2115/38471
出現コレクション:Proceedings

 

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