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Atmospheric sulfur isotopic anomalies recorded at Mt. Everest across the Anthropocene
Lin, M (Lin, Mang)1,2,7; Kang, SC (Kang, Shichang)3,4,5; Shaheen, R (Shaheen, Robina)1; Li, CL (Li, Chaoliu)4,6; Hsu, SC (Hsu, Shih-Chieh)2; Thiemens, MH (Thiemens, Mark H.)1
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 
2018-07-03
Volume115Issue:27Pages:6964-6969
DOI10.1073/pnas.1801935115
AbstractIncreased anthropogenic-induced aerosol concentrations over the Himalayas and Tibetan Plateau have affected regional climate, accelerated snow/glacier melting, and influenced water supply and quality in Asia. Although sulfate is a predominant chemical component in aerosols and the hydrosphere, the contributions from different sources remain contentious. Here, we report multiple sulfur isotope composition of sedimentary sulfates from a remote freshwater alpine lake near Mount Everest to reconstruct a two-century record of the atmospheric sulfur cycle. The sulfur isotopic anomaly is utilized as a probe for sulfur source apportionment and chemical transformation history. The nineteenthcentury record displays a distinct sulfur isotopic signature compared with the twentieth-century record when sulfate concentrations increased. Along with other elemental measurements, the isotopic proxy suggests that the increased trend of sulfate is mainly attributed to enhancements of dust-associated sulfate aerosols and climate-induced weathering/erosion, which overprinted sulfur isotopic anomalies originating from other sources (e.g., sulfates produced in the stratosphere by photolytic oxidation processes and/or emitted from combustion) as observed in most modern tropospheric aerosols. The changes in sulfur cycling reported in this study have implications for better quantification of radiative forcing and snow/glacier melting at this climatically sensitive region and potentially other temperate glacial hydrological systems. Additionally, the unique Delta S-33-delta S-34 pattern in the nineteenth century, a period with extensive global biomass burning, is similar to the Paleoarchean (3.6-3.2 Ga) barite record, potentially providing a deeper insight into sulfur photochemical/thermal reactions and possible volcanic influences on the Earth's earliest sulfur cycle.
WOS IDWOS:000437107000056
Language英语
Indexed BySCIE
KeywordMASS-INDEPENDENT FRACTIONATION MICROBIAL SULFATE REDUCTION HIMALAYAN-TIBETAN PLATEAU ARCHEAN ATMOSPHERE CARBONYL SULFIDE BARITE DEPOSITS LAKE-SEDIMENTS ASIAN MONSOON BLACK CARBON AEROSOL
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Cooperation Status国际
ISSN0027-8424
Department环境变化与地表过程重点实验室
PublisherNATL ACAD SCIENCES
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8600
Collection图书馆
Affiliation1.Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA;
2.Acad Sinica, Res Ctr Environm Changes, Taipei 115, Taiwan;
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China;
4.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
6.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China;
7.Tokyo Inst Technol, Sch Mat & Chem Technol, Yokohama, Kanagawa 2668502, Japan.
Recommended Citation
GB/T 7714
Lin, M ,Kang, SC ,Shaheen, R ,et al. Atmospheric sulfur isotopic anomalies recorded at Mt. Everest across the Anthropocene[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA ,2018,115(27):6964-6969.
APA Lin, M ,Kang, SC ,Shaheen, R ,Li, CL ,Hsu, SC ,&Thiemens, MH .(2018).Atmospheric sulfur isotopic anomalies recorded at Mt. Everest across the Anthropocene.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA ,115(27),6964-6969.
MLA Lin, M ,et al."Atmospheric sulfur isotopic anomalies recorded at Mt. Everest across the Anthropocene".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA  115.27(2018):6964-6969.
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