气候变化领域集成服务门户(CCPortal): Calibration of sulfate levels in the Archean ocean

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DOI	10.1126/science.1078265
	Calibration of sulfate levels in the Archean ocean
	Habicht K.S.; Gade M.; Thamdrup B.; Berg P.; Canfield D.E.
发表日期	2002
ISSN	0036-8075
起始页码	2372
结束页码	2374
卷号	298 期号:5602
英文摘要	The size of the marine sulfate reservoir has grown through Earth's history, reflecting the accumulation of oxygen into the atmosphere. Sulfur isotope fractionation experiments on marine and freshwater sulfate reducers, toether with the isotope record, imply that oceanic Archean sulfate conentrations were < 200 μwhich is less than one-hundredth of present marine sulfate levels and one-fifth of what was previously thought. Such low sulfate concentrations were maintained by volcanic outgassing of SO2 gas, and severely suppressed sulfate reduction rates allowed for a carbon cycle dominated by methanogenesis.
英文关键词	Calibration; Carbon; Concentration (process); Degassing; Fractionation; Isotopes; Marine applications; Methanogens; Oxygen; Reservoirs (water); Freshwater sulfate reducers; Sulfur compounds; isotope; sulfate; sulfur dioxide; Archean; carbon cycle; fractionation; methanogenesis; paleoceanography; sulfate; sulfur isotope; Archean; article; astronomy; calibration; carbon cycle; concentration (parameters); fractionation; freshwater environment; marine environment; methanogenesis; ocean environment; priority journal; reduction; volcano; Anaerobiosis; Archaeoglobus fulgidus; Bacteria; Fresh Water; Geologic Sediments; Iron; Methane; Oceans and Seas; Oxidation-Reduction; Oxygen; Seawater; Sulfates; Sulfides; Time; Archaea
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/243908
作者单位	Danish Ctr. for Earth System Science, Institute of Biology, University of Southern Denmark, Campusvej 55, DK-5230, Odense M, Denmark; Department of Environmental Sciences, Clark Hall, University of Virginia, Charlottesville, VA 22903, United States
推荐引用方式 GB/T 7714	Habicht K.S.,Gade M.,Thamdrup B.,et al. Calibration of sulfate levels in the Archean ocean[J],2002,298(5602).
APA	Habicht K.S.,Gade M.,Thamdrup B.,Berg P.,&Canfield D.E..(2002).Calibration of sulfate levels in the Archean ocean.Science,298(5602).
MLA	Habicht K.S.,et al."Calibration of sulfate levels in the Archean ocean".Science 298.5602(2002).