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Vast laminated diatom mat deposits from the west low-latitude Pacific Ocean in the last glacial period

文献类型：期刊论文

作者Zhai Bin1,2; Li TieGang1; Chang FengMing1; Cao QiYuan1
刊名CHINESE SCIENCE BULLETIN
出版日期2009-12-01
卷号54期号:23页码:4529-4533
ISSN号1001-6538
关键词Diatom Mats West Pacific Ocean Ams(14)c Dating Last Glacial Period Aaiw
DOI10.1007/s11434-009-0447-1
文献子类Article
英文摘要Diatoms are one of the predominant contributors to global carbon fixation by accounting for over 40% of total oceanic primary production and dominate export production. They play a significant role in marine biogeochemistry cycle. The diatom mat deposits are results of vast diatoms bloom. By analysis of diatom mats in 136 degrees 00'-140 degrees 00'E, 15 degrees 00'-21 degrees 00'N, Eastern Philippines Sea, we identified the species of the diatoms as giant Ethmodiscus rex (Wallich) Hendey. AMS (14)C dating shows that the sediments rich in diatom mats occurred during 16000-28600 a B.P., which means the bloom mainly occurred during the last glacial period, while there are no diatom mat deposits in other layers. Preliminary analysis indicates that Antarctic Intermediate Water (AAIW) expanded northward and brought silicate-rich water into the area, namely, silicon leakage processes caused the bloom of diatoms. In addition, the increase of iron input is one of the main reasons for the diatom bloom.; Diatoms are one of the predominant contributors to global carbon fixation by accounting for over 40% of total oceanic primary production and dominate export production. They play a significant role in marine biogeochemistry cycle. The diatom mat deposits are results of vast diatoms bloom. By analysis of diatom mats in 136 degrees 00'-140 degrees 00'E, 15 degrees 00'-21 degrees 00'N, Eastern Philippines Sea, we identified the species of the diatoms as giant Ethmodiscus rex (Wallich) Hendey. AMS C-14 dating shows that the sediments rich in diatom mats occurred during 16000-28600 a B.P., which means the bloom mainly occurred during the last glacial period, while there are no diatom mat deposits in other layers. Preliminary analysis indicates that Antarctic Intermediate Water (AAIW) expanded northward and brought silicate-rich water into the area, namely, silicon leakage processes caused the bloom of diatoms. In addition, the increase of iron input is one of the main reasons for the diatom bloom.
学科主题Multidisciplinary Sciences
语种英语
WOS记录号WOS:000272622100036
公开日期2010-12-22
源URL[http://ir.qdio.ac.cn/handle/337002/3731]  
专题海洋研究所_海洋地质与环境重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhai Bin,Li TieGang,Chang FengMing,et al. Vast laminated diatom mat deposits from the west low-latitude Pacific Ocean in the last glacial period[J]. CHINESE SCIENCE BULLETIN,2009,54(23):4529-4533.
APA Zhai Bin,Li TieGang,Chang FengMing,&Cao QiYuan.(2009).Vast laminated diatom mat deposits from the west low-latitude Pacific Ocean in the last glacial period.CHINESE SCIENCE BULLETIN,54(23),4529-4533.
MLA Zhai Bin,et al."Vast laminated diatom mat deposits from the west low-latitude Pacific Ocean in the last glacial period".CHINESE SCIENCE BULLETIN 54.23(2009):4529-4533.

入库方式： OAI收割

来源：海洋研究所

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