DOI: 10.1002/2014GL059808
论文题名: Early Eocene carbon isotope excursions: Evidence from the terrestrial coal seam in the Fushun Basin, Northeast China
作者: Chen Z. ; Ding Z. ; Tang Z. ; Wang X. ; Yang S.
刊名: Geophysical Research Letters
ISSN: 0094-10056
EISSN: 1944-9787
出版年: 2014
卷: 41, 期: 10 起始页码: 3559
结束页码: 3564
语种: 英语
英文关键词: carbon cycle
; CIE
; Eocene
; hyperthermals
; PETM
Scopus关键词: Coal deposits
; Gas hydrates
; Global warming
; Isotopes
; Methane
; Submarine geology
; Carbon cycles
; CIE
; Eocene
; hyperthermals
; PETM
; Carbon
; carbon cycle
; carbon isotope
; coal seam
; Eocene
; gas hydrate
; global warming
; marine sediment
; permafrost
; China
; Fushun Basin
; Liaoning
英文摘要: A series of transient global warming events between 56 and 50Ma are characterized by a pronounced negative carbon isotope excursion (CIE). However, the documents of these hyperthermals, such as Eocene Thermal Maximum 2 and H2 events, have come chiefly from marine sediments, and their expression in terrestrial organic carbon is still poorly constrained. Here we yield a high-resolution carbon isotope record of terrestrial organic material from the Fushun Basin, which displays four prominent CIEs with magnitudes larger than 2.5‰. Based on age constraint and comparisons with deep-sea records, our data provide the first evidence of the four hyperthermals in coal seams and suggest a global significance of these events. Moreover, the difference of CIE magnitudes between marine and terrestrial records shows a significant linear correlation with the marine carbonate CIE, implying that these events are likely attributable to recurring injections of 13C-depleted carbon from submarine methane hydrates and/or permafrost. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902282322&doi=10.1002%2f2014GL059808&partnerID=40&md5=5d25583951fe161451c740db3bed4b96
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7320
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Chen Z.,Ding Z.,Tang Z.,et al. Early Eocene carbon isotope excursions: Evidence from the terrestrial coal seam in the Fushun Basin, Northeast China[J]. Geophysical Research Letters,2014-01-01,41(10).