气候变化领域集成服务门户(CCPortal): Oxygen and sulfur mass-independent isotopic signatures in black crusts: The complementary negative I"33S reservoir of sulfate aerosols

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DOI	10.5194/acp-20-4255-2020
	Oxygen and sulfur mass-independent isotopic signatures in black crusts: The complementary negative I"33S reservoir of sulfate aerosols
	Genot I.; Au Yang D.; Martin E.; Cartigny P.; Legendre E.; De Rafelis M.
发表日期	2020
ISSN	1680-7316
起始页码	4255
结束页码	4273
卷号	20 期号:7
英文摘要	To better understand the formation and the oxidation pathways leading to gypsum-forming black crusts and investigate their bearing on the whole atmospheric SO2 cycle, we measured the oxygen (17O, 18O, and 117O) and sulfur (33S, 34S, 36S, 133S, and 136S) isotopic compositions of black crust sulfates sampled on carbonate building stones along a NW-SE cross section in the Parisian basin. The 18O and 34S values, ranging between 7.5and 16:70:5(n D 27, 2) and between2:66and 13:99 0:20 , respectively, show anthropogenic SO2 as the main sulfur source (from 2% to 81 %, average 30 %) with host-rock sulfates making the complement. This is supported by 117O values (up to 2.6 , on average 0:86 ), requiring > 60% of atmospheric sulfates in black crusts. Negative 133S and 136S values between 0:34and 0:000:01 and between 0:76 and 0:220:20 , respectively, were measured in black crust sulfates, which is typical of a magnetic isotope effect that would occur during the SO2 oxidation on the building stone, leading to 33S depletion in black crust sulfates and subsequent 33S enrichment in residual SO2. Except for a few samples, sulfate aerosols mostly have 133S values > 0 , and no processes can yet explain this enrichment, resulting in an inconsistent S budget: black crust sulfates could well represent the complementary negative 133S reservoir of the sulfate aerosols, thus solving the atmospheric SO2 budget. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol formation; carbonate rock; isotopic composition; oxidation; oxygen; sulfate; sulfur cycle; sulfur dioxide; France; Paris Basin
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247854
作者单位	Institut de Physique du Globe de Paris, Université de Paris, CNRS, Paris, 75005, France; Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre de Paris, IsteP UMR7193, Paris, France; GEOTOP, Université du Québec À Montréal, Montréal, H3C 3P8, Canada; Department of Earth and Planetary Sciences, McGill University, Montréal, Canada; LATMOS, UVSQ, Univ. Paris Saclay, Sorbonne Univ., CNRS, INSU, IPSL, 11 Blvd. d'Alembert, Guyancourt, 78280, France; Géosciences Environnement Toulouse (GET), Université Toulouse III - Paul Sabatier, CNRS UMR 5563, IRD, 14 avenue Edouard Belin, Toulouse, 31400, France
推荐引用方式 GB/T 7714	Genot I.,Au Yang D.,Martin E.,et al. Oxygen and sulfur mass-independent isotopic signatures in black crusts: The complementary negative I"33S reservoir of sulfate aerosols[J],2020,20(7).
APA	Genot I.,Au Yang D.,Martin E.,Cartigny P.,Legendre E.,&De Rafelis M..(2020).Oxygen and sulfur mass-independent isotopic signatures in black crusts: The complementary negative I"33S reservoir of sulfate aerosols.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(7).
MLA	Genot I.,et al."Oxygen and sulfur mass-independent isotopic signatures in black crusts: The complementary negative I"33S reservoir of sulfate aerosols".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.7(2020).