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A Pulse of Meteoric Subsurface Fluid Discharging Into the Chukchi Sea During the Early Holocene Thermal Maximum (EHTM)

Cited 1 time in wos
Cited 2 time in scopus

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dc.contributor.authorKim, Ji-Hoon-
dc.contributor.authorHong, Wei-Li-
dc.contributor.authorTorres, Marta E.-
dc.contributor.authorRyu, Jong-Sik-
dc.contributor.authorKang, Moo-Hee-
dc.contributor.authorHan, Dukki-
dc.contributor.authorNam, Seung-il-
dc.contributor.authorHur, Jin-
dc.contributor.authorKoh, Dong-Chan-
dc.contributor.authorNiessen, Frank-
dc.contributor.authorLee, Dong-Hun-
dc.contributor.authorJang, Kwangchul-
dc.contributor.authorRae, James William Buchanan-
dc.contributor.authorChen, Meilian-
dc.date.accessioned2021-11-29T04:54:23Z-
dc.date.available2021-11-29T04:54:23Z-
dc.date.issued2021-08-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/13011-
dc.description.abstractThe response of Arctic Ocean biogeochemistry to subsurface flow driven by permafrost thaw is poorly understood. We present dissolved chloride and water isotopic data from the Chukchi Sea Shelf sediments that reveal the presence of a meteoric subsurface flow nriched in cations with a radiogenic Sr fingerprint. This subsurface fluid is also enriched in dissolved inorganic carbon and methane that bear isotopic compositions indicative of a carbon reservoir modified by reactions in a closed system. Such fluid characteristics are in stark contrast with those from other sites in the Chukchi Sea where the pore water composition shows no sign of meteoric input, but reflect typical biogeochemical reactions associated with early diagenetic sequences in marine sediment. The most likely source of the observed subsurface flow at the Chukchi Sea Shelf is from the degradation of permafrost that had extended to the shelf region during the Last Glacial Maximum. Our data suggest that the permafrostdriven subsurface flow most likely took place during the 2?3°C warming in the Early Holocene Thermal Maximum. This time scale is supported by numerical simulation of pore water profiles, which indicate that a minimum of several thousand years must have passed since the cessation of the subsurface methane-bearing fluid flow.en_US
dc.languageEnglishen_US
dc.language.isoenen_US
dc.subjectGeochemistry & Geophysicsen_US
dc.subject.classification기타()en_US
dc.titleA Pulse of Meteoric Subsurface Fluid Discharging Into the Chukchi Sea During the Early Holocene Thermal Maximum (EHTM)en_US
dc.title.alternative홀로세 최대 온난기 동안 척치해 담수 유출 이벤트en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationKim, Ji-Hoon, et al. 2021. "A Pulse of Meteoric Subsurface Fluid Discharging Into the Chukchi Sea During the Early Holocene Thermal Maximum (EHTM)". <em>GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS</em>, 22(8): 1-20.-
dc.citation.titleGEOCHEMISTRY GEOPHYSICS GEOSYSTEMSen_US
dc.citation.volume22en_US
dc.citation.number8en_US
dc.identifier.doi10.1029/2021GC009750-
dc.citation.startPage1en_US
dc.citation.endPage20en_US
dc.description.articleClassificationSCIE-
dc.description.jcrRateJCR 2019:29.412en_US
dc.subject.keywordsubsurface meteoric fluid dischargeen_US
dc.subject.keywordArctic elementen_US
dc.subject.keywordcarbon cycleen_US
dc.subject.keywordpermafrosten_US
dc.subject.keywordEHTMen_US
dc.subject.keywordChukchi Seaen_US
dc.identifier.localId2021-0145-
dc.identifier.scopusid2-s2.0-85113742864-
dc.identifier.wosid000691021600020-
Appears in Collections  
2020-2020, Based Research on International Joint Drilling for Reconstructing Evolution and Glacial History of the Arctic Ocean (20-20) / Nam, Seung-il (PE20350)
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