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DOI	10.1126/science.aaw9247
	The geologic history of seawater oxygen isotopes from marine iron oxides
	Galili N.; Shemesh A.; Yam R.; Brailovsky I.; Sela-Adler M.; Schuster E.M.; Collom C.; Bekker A.; Planavsky N.; Macdonald F.A.; Préat A.; Rudmin M.; Trela W.; Sturesson U.; Heikoop J.M.; Aurell M.; Ramajo J.; Halevy I.
发表日期	2019
ISSN	0036-8075
起始页码	469
结束页码	473
卷号	365 期号:6452
英文摘要	The oxygen isotope composition (d18O) of marine sedimentary rocks has increased by 10 to 15 per mil since Archean time. Interpretation of this trend is hindered by the dual control of temperature and fluid d18O on the rocks' isotopic composition. A new d18O record in marine iron oxides covering the past ~2000 million years shows a similar secular rise. Iron oxide precipitation experiments reveal a weakly temperature-dependent iron oxide-water oxygen isotope fractionation, suggesting that increasing seawater d18O over time was the primary cause of the long-term rise in d18O values of marine precipitates. The 18O enrichment may have been driven by an increase in terrestrial sediment cover, a change in the proportion of high- and low-temperature crustal alteration, or a combination of these and other factors. © 2019 American Association for the Advancement of Science. All rights reserved.
英文关键词	iron oxide; oxygen 18; sea water; Archean; enrichment; geological survey; iron oxide; isotopic composition; marine environment; marine sediment; oxygen isotope; precipitation (chemistry); seawater; sediment chemistry; sedimentary rock; Article; geology; history; marine environment; mineralogy; Phanerozoic; Precambrian; precipitation; priority journal; sediment; temperature
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243769
作者单位	Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel; Royal Tyrrell Museum of Palaeontology, Drumheller, AB, Canada; Department of Earth Sciences, University of California, Riverside, CA, United States; Department of Geology and Geophysics, Yale University, New Haven, CT, United States; Department of Earth Science, University of California, Santa Barbara, CA, United States; Department of Biogeochemistry and Modeling of the Earth System, University of Brussels, Brussels, Belgium; Division for Geology, Tomsk Polytechnic University, Tomsk, Russian Federation; Polish Geological Institute, Warsaw, Poland; Institute of Earth Sciences, Uppsala University, Uppsala, Sweden; Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, United States; Department of Earth Sciences, University of Zaragoza, Zaragoza, Spain
推荐引用方式 GB/T 7714	Galili N.,Shemesh A.,Yam R.,et al. The geologic history of seawater oxygen isotopes from marine iron oxides[J],2019,365(6452).
APA	Galili N..,Shemesh A..,Yam R..,Brailovsky I..,Sela-Adler M..,...&Halevy I..(2019).The geologic history of seawater oxygen isotopes from marine iron oxides.Science,365(6452).
MLA	Galili N.,et al."The geologic history of seawater oxygen isotopes from marine iron oxides".Science 365.6452(2019).