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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)
| Title: | Depositional Environments Revealed From Biomarkers in Sediments Deposited During the Mid-Cretaceous Oceanic Anoxic Events (OAEs) in the Vocontian Basin (SE France) |
| Authors: | Okano, Kazuki Browse this author | | Sawada, Ken Browse this author | | Takashima, Reishi Browse this author | | Nishi, Hiroshi Browse this author | | Okada, Hisatake Browse this author →KAKEN DB |
| Keywords: | OAE | | Thiophene | | Sulfur content | | Redox condition | | Terrestrial input |
| Issue Date: | 2008 |
| Publisher: | 21st Century COE for Neo-Science of Natural History, Hokkaido University |
| Citation: | Edited by Hisatake Okada, Shunsuke F. Mawatari, Noriyuki Suzuki, Pitambar Gautam. ISBN: 978-4-9903990-0-9 |
| Journal Title: | 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 |
| Start Page: | 233 |
| End Page: | 238 |
| Abstract: | 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. |
| Description: | International Symposium, "The Origin and Evolution of Natural Diversity". 1–5 October 2007. Sapporo, Japan. |
| Conference Name: | International Symposium, "The Origin and Evolution of Natural Diversity" |
| Conference Place: | Sapporo |
| Type: | proceedings |
| URI: | http://hdl.handle.net/2115/38471 |
| Appears in Collections: | Origin and Evolution of Natural Diversity > Proceedings
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