| DOI: | 10.1002/grl.50188
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| 论文题名: | Pre-modern Arctic Ocean circulation from surface sediment neodymium isotopes |
| 作者: | Haley B.A.; Polyak L.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9263
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| EISSN: | 1944-8994
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| 出版年: | 2013
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| 卷: | 40, 期:5 | | 起始页码: | 893
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| 结束页码: | 897
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| 语种: | 英语
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| 英文关键词: | Arctic Ocean
; circulation
; climate change
; Nd isotopes
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| Scopus关键词: | Arctic ocean
; Bottom-water circulation
; Brine rejections
; Changing climate
; Nd isotopes
; Neodymium isotopes
; Sediment redistribution
; Surface sediments
; Boiler circulation
; Climate change
; Isotopes
; Sedimentology
; Surficial sediments
; Oceanography
; climate change
; data acquisition
; isotopic analysis
; leachate
; neodymium
; oceanic circulation
; seafloor
; sediment analysis
; water column
; Arctic Ocean
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| 英文摘要: | We present a survey of Nd isotopes measured from authigenic phases on surface sediments from the Arctic Ocean seafloor. Comparison with published dissolved water column Nd isotope distributions suggests that εNd from sediment leachates accurately represents bottom water circulation of the Arctic Ocean, with Atlantic (∼-11 εNd) and Pacific (∼-5 εNd) water end-members clearly distinguishable. Nd isotopic data from the Chukchi margin show several apparent deviations from the expected pattern, which imply that this margin has been a region of sustained shelf-to-basin sediment redistribution and/or a region where deep water cascades downslope, such as through brine rejection during ice formation. These data also provide insights into a pre-anthropocene "baseline" (several thousand years) for investigating Arctic Ocean circulation in a changing climate; the data presented here are indicative that these changes may be impacting the deep as well as surface ocean. © 2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876812042&doi=10.1002%2fgrl.50188&partnerID=40&md5=fa5a8f78f11948d9ee0a6db188c17d4c
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6527
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| Appears in Collections: | 气候减缓与适应
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作者单位: | College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States
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| Recommended Citation: | |
Haley B.A.,Polyak L.. Pre-modern Arctic Ocean circulation from surface sediment neodymium isotopes[J]. Geophysical Research Letters,2013-01-01,40(5).
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