Uranium and molybdenum isotope evidence for an episode of widespread ocean oxygenation during the late Ediacaran Period
文献类型：期刊论文
| 作者 | Kendall, Brian1,2; Komiya, Tsuyoshi2,3,4; Lyons, Timothy W.5; Bates, Steve M.5; Gordon, Gwyneth W.2; Romaniello, Stephen J.2; Jiang, Ganqing6; Creaser, Robert A.7; Xiao, Shuhai8; McFadden, Kathleen9 |
| 刊名 | GEOCHIMICA ET COSMOCHIMICA ACTA
 |
| 出版日期 | 2015-05-01 |
| 卷号 | 156页码:173-193 |
| DOI | 10.1016/j.gca.2015.02.025 |
| 文献子类 | Article |
| 英文摘要 | To improve estimates of the extent of ocean oxygenation during the late Ediacaran Period, we measured the U and Mo isotope compositions of euxinic (anoxic and sulfidic) organic-rich mudrocks (ORM) of Member IV, upper Doushantuo Formation, South China. The average delta U-238 of most samples is 0.24 +/- 0.16 parts per thousand (2SD; relative to standard CRM145), which is slightly higher than the average delta U-238 of 0.02 +/- 0.12 parts per thousand for restricted Black Sea (deep-water Unit I) euxinic sediments and is similar to a modeled delta U-238 value of 0.2 parts per thousand for open ocean euxinic sediments in the modern well-oxygenated oceans. Because U-238 is preferentially removed to euxinic sediments compared to U-235, expanded ocean anoxia will deplete seawater of U-238 relative to U-235, ultimately leading to deposition of ORM with low delta U-238. Hence, the high delta U-238 of Member IV ORM points to a common occurrence of extensive ocean oxygenation ca. 560 to 551 Myr ago. |
| WOS关键词 | EARLY ANIMAL EVOLUTION ; ANOXIC EVENT 2 ; SOUTH CHINA ; BLACK-SEA ; DOUSHANTUO FORMATION ; METAZOAN EVOLUTION ; EUXINIC SEDIMENTS ; MARINE-SEDIMENTS ; YANGTZE PLATFORM ; MASS EXTINCTION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000352192100010 |
| 资助机构 | National Science Foundation ; National Science Foundation ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Agouron Institute ; Agouron Institute ; NSF-EAR ; NSF-EAR ; NASA Exobiology and Astrobiology programs ; NASA Exobiology and Astrobiology programs ; Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant ; Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant ; National Science Foundation ; National Science Foundation ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Agouron Institute ; Agouron Institute ; NSF-EAR ; NSF-EAR ; NASA Exobiology and Astrobiology programs ; NASA Exobiology and Astrobiology programs ; Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant ; Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62584]  |
| 专题 | 地质与地球物理研究所_科技支撑系统 |
| 作者单位 | 1.Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON N2L 3G1, Canada 2.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA 3.Univ Tokyo, Dept Earth Sci & Astron, Meguro Ku, Tokyo 1538902, Japan 4.Tokyo Inst Technol, Res Ctr Evolving Earth & Planets, Meguro Ku, Tokyo 1528551, Japan 5.Univ Calif Riverside, Dept Earth Sci, Riverside, CA 92521 USA 6.Univ Nevada, Dept Geosci, Las Vegas, NV 89154 USA 7.Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada 8.Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA 9.Conoco Phillips, Houston, TX 77079 USA 10.Japan Agcy Marine Earth Sci & Technol, Inst Res Earth Evolut, Yokosuka, Kanagawa 2370061, Japan |
| 推荐引用方式 GB/T 7714 | Kendall, Brian,Komiya, Tsuyoshi,Lyons, Timothy W.,et al. Uranium and molybdenum isotope evidence for an episode of widespread ocean oxygenation during the late Ediacaran Period[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2015,156:173-193. |
| APA | Kendall, Brian.,Komiya, Tsuyoshi.,Lyons, Timothy W..,Bates, Steve M..,Gordon, Gwyneth W..,...&Anbar, Ariel D..(2015).Uranium and molybdenum isotope evidence for an episode of widespread ocean oxygenation during the late Ediacaran Period.GEOCHIMICA ET COSMOCHIMICA ACTA,156,173-193. |
| MLA | Kendall, Brian,et al."Uranium and molybdenum isotope evidence for an episode of widespread ocean oxygenation during the late Ediacaran Period".GEOCHIMICA ET COSMOCHIMICA ACTA 156(2015):173-193. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。