Cracking the superheavy pyrite enigma: possible roles of volatile organosulfur compound emission

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dc.contributor.authorLang, Xianguoen
dc.contributor.authorZhao, Zhouqiaoen
dc.contributor.authorMa, Haoranen
dc.contributor.authorHuang, Kangjunen
dc.contributor.authorLi, Songzhuoen
dc.contributor.authorZhou, Chuanmingen
dc.contributor.authorXiao, Shuhaien
dc.contributor.authorPeng, Yongboen
dc.contributor.authorLiu, Yonggangen
dc.contributor.authorTang, Wenboen
dc.contributor.authorShen, Bingen
dc.date.accessioned2022-03-29T12:17:00Zen
dc.date.available2022-03-29T12:17:00Zen
dc.date.issued2021-10en
dc.description.abstractThe global deposition of superheavy pyrite (pyrite isotopically heavier than coeval seawater sulfate in the Neoproterozoic Era and particularly in the Cryogenian Period) defies explanation using the canonical marine sulfur cycle system. Here we report petrographic and sulfur isotopic data (delta S-34(py)) of superheavy pyrite from the Cryogenian Datangpo Formation (660-650 Ma) in South China. Our data indicate a syndepositional/early diagenetic origin of the Datangpo superheavy pyrite, with S-34-enriched H2S supplied from sulfidic (H2S rich) seawater. Instructed by a novel sulfur-cycling model, we propose that the emission of S-34-depleted volatile organosulfur compounds (VOSC) that were generated via sulfide methylation may have contributed to the formation of S-34-enriched sulfidic seawater and superheavy pyrite. The global emission of VOSC may be attributed to enhanced organic matter production after the Sturtian glaciation in the context of widespread sulfidic conditions. These findings demonstrate that VOSC cycling is an important component of the sulfur cycle in Proterozoic oceans.en
dc.description.notesThis work was supported by the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (XDB18000000) and the National Natural Science Foundation of China (41802024, 41973008, 42072334 and 41322021). S.X. was funded by the National Science Foundation (EAR-2021207).en
dc.description.sponsorshipStrategic Priority Research Program (B) of the Chinese Academy of SciencesChinese Academy of Sciences [XDB18000000]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41802024, 41973008, 42072334, 41322021]; National Science FoundationNational Science Foundation (NSF) [EAR-2021207]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1093/nsr/nwab034en
dc.identifier.eissn2053-714Xen
dc.identifier.issn2095-5138en
dc.identifier.issue10en
dc.identifier.othernwab034en
dc.identifier.pmid34858606en
dc.identifier.urihttp://hdl.handle.net/10919/109478en
dc.identifier.volume8en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectsulfur isotopeen
dc.subjectorganosulfur compounden
dc.subjectsulfur cycleen
dc.subjectCryogenianen
dc.subjectDatangpo Formationen
dc.titleCracking the superheavy pyrite enigma: possible roles of volatile organosulfur compound emissionen
dc.title.serialNational Science Reviewen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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