globalchange  > 气候变化事实与影响
DOI: 10.1007/s12583-018-1002-2
WOS记录号: WOS:000464905900002
论文题名:
Seawater Temperature and Dissolved Oxygen over the Past 500 Million Years
作者: Song, Haijun1; Wignall, Paul B.2; Song, Huyue1; Dai, Xu1; Chu, Daoliang1
通讯作者: Song, Haijun
刊名: JOURNAL OF EARTH SCIENCE
ISSN: 1674-487X
EISSN: 1867-111X
出版年: 2019
卷: 30, 期:2, 页码:236-243
语种: 英语
英文关键词: sea surface temperature ; global warming ; ocean anoxic event ; dissolved oxygen ; Phanerozoic
WOS关键词: SEA-SURFACE TEMPERATURE ; ATMOSPHERIC CO2 ; GLOBAL CLIMATE ; EVOLUTION ; MODEL ; O-2 ; FRACTIONATION ; EXTINCTIONS ; OCEANS ; WATER
WOS学科分类: Geosciences, Multidisciplinary
WOS研究方向: Geology
英文摘要:

Ocean temperature and dissolved oxygen concentrations are critical factors that control ocean productivity, carbon and nutrient cycles, and marine habitat. However, the evolution of these two factors in the geologic past are still unclear. Here, we use a new oxygen isotope database to establish the sea surface temperature (SST) curve in the past 500 million years. The database is composed of 22 796 oxygen isotope values of phosphatic and calcareous fossils. The result shows two prolonged cooling events happened in the Late Paleozoic and Late Cenozoic, coinciding with two major ice ages indicated by continental glaciation data, and seven global warming events that happened in the Late Cambrian, Silurian-Devonian transition, Late Devonian, Early Triassic, Toarcian, Late Cretaceous, and Paleocene-Eocene transition. The SSTs during these warming periods are about 5-30 degrees C higher than the present-day level. Oxygen contents of shallow seawater are calculated from temperature, salinity, and atmospheric oxygen. The results show that major dissolved oxygen valleys of surface seawater coincide with global warming events and ocean anoxic events. We propose that the combined effect of temperature and dissolved oxygen account for the long-term evolution of global oceanic redox state during the Phanerozoic.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/132934
Appears in Collections:气候变化事实与影响

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作者单位: 1.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Hubei, Peoples R China
2.Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England

Recommended Citation:
Song, Haijun,Wignall, Paul B.,Song, Huyue,et al. Seawater Temperature and Dissolved Oxygen over the Past 500 Million Years[J]. JOURNAL OF EARTH SCIENCE,2019-01-01,30(2):236-243
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