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题名: Cyanobacterial fossils from 252 Ma old microbialites and their environmental significance
作者: Wu, Ya Sheng1; Yu, Gong Liang2; Li, Ren Hui2; Song, Li Rong2; Jiang, Hong Xia1; Riding, Robert4; Liu, Li Jing1; Liu, Dong Yan3; Zhao, Rui1
通讯作者: Wu, YS (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China.
关键词: PERMIAN-TRIASSIC BOUNDARY ; SOUTH CHINA ; PALEOENVIRONMENTAL SIGNIFICANCE ; OCEANIC CONDITIONS ; NANPANJIANG BASIN ; SICHUAN PROVINCE ; EXTINCTION
刊名: SCIENTIFIC REPORTS
发表日期: 2014-01-22
DOI: 10.1038/srep03820
卷: 4
收录类别: SCI
文章类型: Article
部门归属: [Wu, Ya Sheng; Jiang, Hong Xia; Liu, Li Jing; Zhao, Rui] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China; [Yu, Gong Liang; Li, Ren Hui; Song, Li Rong] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430071, Peoples R China; [Liu, Dong Yan] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Riding, Robert] Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA
WOS标题词: Science & Technology
资助者: National Natural Science Foundation of China [40472015, 40802001, 41372121]
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
摘要: The end-Permian mass extinction was followed by the formation of an enigmatic rock layer with a distinctive macroscopic spotted or dendroid fabric. This deposit has been interpreted as microbial reef rock, digitate dendrolite, digital thrombolite, dendritic thrombolite, or bacterial deposits. Agreement has been reached in considering them as microbialites, but not in their formation. This study has revealed that the spotted and dendroid microbialites were composed of numerous fossil casts formed by the planktic cyanobacterium, Microcystis, a coccoid genus that at the present-day commonly forms blooms in modern lakes, rivers, and reservoirs. The abundance of the fossils and the diagenesis they experienced has determined the macroscopic fabric: where they abundant, the rock appears as dendroid, otherwise, it appears as spotted. The ancient Microcystis bloom might produce toxin to kill other metazoans, and be responsible for the oceanic anoxia that has puzzled so many researchers for so many years.
英文摘要: The end-Permian mass extinction was followed by the formation of an enigmatic rock layer with a distinctive macroscopic spotted or dendroid fabric. This deposit has been interpreted as microbial reef rock, digitate dendrolite, digital thrombolite, dendritic thrombolite, or bacterial deposits. Agreement has been reached in considering them as microbialites, but not in their formation. This study has revealed that the spotted and dendroid microbialites were composed of numerous fossil casts formed by the planktic cyanobacterium, Microcystis, a coccoid genus that at the present-day commonly forms blooms in modern lakes, rivers, and reservoirs. The abundance of the fossils and the diagenesis they experienced has determined the macroscopic fabric: where they abundant, the rock appears as dendroid, otherwise, it appears as spotted. The ancient Microcystis bloom might produce toxin to kill other metazoans, and be responsible for the oceanic anoxia that has puzzled so many researchers for so many years.
关键词[WOS]: PERMIAN-TRIASSIC BOUNDARY ; SOUTH CHINA ; PALEOENVIRONMENTAL SIGNIFICANCE ; OCEANIC CONDITIONS ; NANPANJIANG BASIN ; SICHUAN PROVINCE ; EXTINCTION
语种: 英语
WOS记录号: WOS:000330044700011
ISSN号: 2045-2322
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20117
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430071, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
4.Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA

Recommended Citation:
Wu, Ya Sheng; Yu, Gong Liang; Li, Ren Hui; Song, Li Rong; Jiang, Hong Xia; Riding, Robert; Liu, Li Jing; Liu, Dong Yan; Zhao, Rui.Cyanobacterial fossils from 252 Ma old microbialites and their environmental significance,SCIENTIFIC REPORTS,2014,4():
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