A test of the relative importance of iron fertilization from aeolian dust and volcanic ash in the stratified high-nitrate low-chlorophyll subarctic Pacific Ocean
文献类型:期刊论文
作者 | Chen, Ting2,6; Liu, Qingsong3,6; Roberts, Andrew P.5; Shi, Xuefa1,3; Zhang, Qiang4 |
刊名 | QUATERNARY SCIENCE REVIEWS |
出版日期 | 2020-11-15 |
卷号 | 248页码:8 |
ISSN号 | 0277-3791 |
关键词 | Diatoms Iron fertilization HNLC Intensification of northern hemisphere glaciation Plio-Pleistocene transition North Pacific Ocean |
DOI | 10.1016/j.quascirev.2020.106577 |
英文摘要 | To test the biological effectiveness of iron fertilization by Asian aeolian dust and volcanic ash in the stratified high-nitrate, low-chlorophyll subarctic Pacific Ocean over long-time scales, we analysed sediments with ages between 2.8 and 0.9 Ma at ODP Site 885/886. This site lies far from the influence of other iron sources (e.g. icebergs or lateral iron transportation) and the water column has been stratified since intensification of northern hemisphere glaciation (iNHG) at similar to 2.7 Ma, which limits nutrient up-welling and makes it an ideal location for testing iron bioavailability of different atmospheric sources that fell onto the surface ocean. We investigate diatom assemblages and opal export changes, and compare them with the properties of iron minerals in Asian aeolian dust and volcanic ash. Our results reveal that Asian aeolian dust contains mostly unreactive iron-bearing minerals that supplied limited bioavailable iron for diatom growth at Site 885/886. Diatom productivity changes were dominated by upwelling/stratification changes over long timescales, and by sporadic iron fertilization from volcanic ash inputs. Iron from volcanic ash particles is likely to have become bioavailable because such particles dissolved more readily due to their high porosity and ultra-fine size. (C) 2020 Elsevier Ltd. All rights reserved. |
WOS关键词 | WESTERN NORTH PACIFIC ; EQUATORIAL PACIFIC ; SURFACE SEDIMENTS ; MINERAL DUST ; EOLIAN DUST ; NO EVIDENCE ; PLIOCENE ; PALEOCEANOGRAPHY ; PRODUCTIVITY ; GLACIATION |
资助项目 | National Key Research and Development Program of China[2016YFA0601903] ; National Natural Science Foundation of China (NNSFC)[41430962] ; National Natural Science Foundation of China (NNSFC)[41072136] ; National Natural Science Foundation of China (NNSFC)[41904069] ; Australian Research Council[DP110105419] |
WOS研究方向 | Physical Geography ; Geology |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000582803000011 |
资助机构 | National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China (NNSFC) ; National Natural Science Foundation of China (NNSFC) ; Australian Research Council ; Australian Research Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China (NNSFC) ; National Natural Science Foundation of China (NNSFC) ; Australian Research Council ; Australian Research Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China (NNSFC) ; National Natural Science Foundation of China (NNSFC) ; Australian Research Council ; Australian Research Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China (NNSFC) ; National Natural Science Foundation of China (NNSFC) ; Australian Research Council ; Australian Research Council |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/98207] |
专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
通讯作者 | Liu, Qingsong |
作者单位 | 1.State Ocean Adm, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Southern Univ Sci & Technol SUSTech, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 5.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia 6.Southern Univ Sci & Technol SUSTech, Ctr Marine Magnetism CM2, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Ting,Liu, Qingsong,Roberts, Andrew P.,et al. A test of the relative importance of iron fertilization from aeolian dust and volcanic ash in the stratified high-nitrate low-chlorophyll subarctic Pacific Ocean[J]. QUATERNARY SCIENCE REVIEWS,2020,248:8. |
APA | Chen, Ting,Liu, Qingsong,Roberts, Andrew P.,Shi, Xuefa,&Zhang, Qiang.(2020).A test of the relative importance of iron fertilization from aeolian dust and volcanic ash in the stratified high-nitrate low-chlorophyll subarctic Pacific Ocean.QUATERNARY SCIENCE REVIEWS,248,8. |
MLA | Chen, Ting,et al."A test of the relative importance of iron fertilization from aeolian dust and volcanic ash in the stratified high-nitrate low-chlorophyll subarctic Pacific Ocean".QUATERNARY SCIENCE REVIEWS 248(2020):8. |
入库方式: OAI收割
来源:地质与地球物理研究所
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