| DOI: | 10.1002/2015GL063764
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| 论文题名: | Radiocarbon in dissolved organic carbon of the South Pacific Ocean |
| 作者: | Druffel E.R.M.; Griffin S.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9201
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| EISSN: | 1944-8932
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| 出版年: | 2015
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| 卷: | 42, 期:10 | | 起始页码: | 4096
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| 结束页码: | 4101
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| 语种: | 英语
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| 英文关键词: | carbon cycle
; dissolved organic carbon
; DOC
; radiocarbon
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| Scopus关键词: | Dissolution
; Stream flow
; Carbon cycles
; Dissolved inorganic carbon
; Dissolved organic carbon
; DOC
; East Pacific Rise
; Primary production
; Radiocarbon
; South pacific oceans
; Organic carbon
; carbon cycle
; deep sea
; dissolved inorganic carbon
; dissolved organic carbon
; marine ecosystem
; mixing
; primary production
; radiocarbon dating
; Pacific Ocean
; Pacific Ocean (South)
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| 英文摘要: | Marine dissolved organic carbon (DOC) originates mainly from primary production using dissolved inorganic carbon (DIC) that has young 14C ages. Paradoxically, the 14C age of deep DOC ranges from 4000 to 6400 14C years, indicating that a portion of DOC survives multiple, deep ocean mixing cycles. Here we show that 14C ages of DOC from the deep South Pacific are equal to those from the deep north central Pacific. This is contrary to DIC 14C ages that increase from south to north in the deep Pacific. We hypothesize that DOC in the South Pacific is influenced by input of ancient DOC from hydrothermal flanks and ridges of the East Pacific Rise. We show that DOC Δ14C values in the deep Pacific are not controlled by aging during northward transport of deep waters, indicating that the deep oceanic carbon cycle needs reassessment. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931567537&doi=10.1002%2f2015GL063764&partnerID=40&md5=6876157cd7dd5c1eff0549d8828c8724
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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/8817
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Earth System Science, University of California, Irvine, CA, United States
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| Recommended Citation: | |
Druffel E.R.M.,Griffin S.. Radiocarbon in dissolved organic carbon of the South Pacific Ocean[J]. Geophysical Research Letters,2015-01-01,42(10).
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