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Microbial Fe(III) reduction as a potential iron source from Holocene sediments beneath Larsen Ice Shelf
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, Jaewoo | - |
dc.contributor.author | Yoo, Kyu-Cheul | - |
dc.contributor.author | Rosenheim, Brad E. | - |
dc.contributor.author | Conway, Tim M. | - |
dc.contributor.author | Lee, Jae Il | - |
dc.contributor.author | Yoon, Ho Il | - |
dc.contributor.author | Hwang, Chung Yeon | - |
dc.contributor.author | Yang, Kiho | - |
dc.contributor.author | Subt, Christina | - |
dc.contributor.author | Kim, Jinwook | - |
dc.date.accessioned | 2022-05-04T01:44:52Z | - |
dc.date.available | 2022-05-04T01:44:52Z | - |
dc.date.created | 2020-11-18 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.citation | Nature Communications, Vol.10, p. 5786 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://hdl.handle.net/10371/179362 | - |
dc.description.abstract | Recent recession of the Larsen Ice Shelf C has revealed microbial alterations of illite in marine sediments, a process typically thought to occur during low-grade metamorphism. In situ breakdown of illite provides a previously-unobserved pathway for the release of dissolved Fe2+ to porewaters, thus enhancing clay-rich Antarctic sub-ice shelf sediments as an important source of Fe to Fe-limited surface Southern Ocean waters during ice shelf retreat after the Last Glacial Maximum. When sediments are underneath the ice shelf, Fe2+ from microbial reductive dissolution of illite/Fe-oxides may be exported to the water column. However, the initiation of an oxygenated, bioturbated sediment under receding ice shelves may oxidize Fe within surface porewaters, decreasing dissolved Fe2+ export to the ocean. Thus, we identify another ice-sheet feedback intimately tied to iron biogeochemistry during climate transitions. Further constraints on the geographical extent of this process will impact our understanding of iron-carbon feedbacks during major deglaciations. | - |
dc.language | 영어 | - |
dc.publisher | Nature Publishing Group | - |
dc.title | Microbial Fe(III) reduction as a potential iron source from Holocene sediments beneath Larsen Ice Shelf | - |
dc.type | Article | - |
dc.identifier.doi | 10.1038/s41467-019-13741-x | - |
dc.citation.journaltitle | Nature Communications | - |
dc.identifier.wosid | 000509779000006 | - |
dc.identifier.scopusid | 2-s2.0-85076906010 | - |
dc.citation.startpage | 5786 | - |
dc.citation.volume | 10 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Hwang, Chung Yeon | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
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