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- W2616147981 abstract "Abstract Marine sediment records suggest that episodes of major atmospheric CO 2 drawdown during the last glacial period were linked to iron (Fe) fertilization of subantarctic surface waters. The principal source of this Fe is thought to be dust transported from southern mid-latitude deserts. However, uncertainty exists over contributions to CO 2 sequestration from complementary Fe sources, such as the Antarctic ice sheet, due to the difficulty of locating and interrogating suitable archives that have the potential to preserve such information. Here we present petrographic, geochemical and microbial DNA evidence preserved in precisely dated subglacial calcites from close to the East Antarctic Ice-Sheet margin, which together suggest that volcanically-induced drainage of Fe-rich waters during the Last Glacial Maximum could have reached the Southern Ocean. Our results support a significant contribution of Antarctic volcanism to subglacial transport and delivery of nutrients with implications on ocean productivity at peak glacial conditions." @default.
- W2616147981 created "2017-05-26" @default.
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- W2616147981 date "2017-06-09" @default.
- W2616147981 modified "2023-10-12" @default.
- W2616147981 title "The influence of Antarctic subglacial volcanism on the global iron cycle during the Last Glacial Maximum" @default.
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- W2616147981 doi "https://doi.org/10.1038/ncomms15425" @default.
- W2616147981 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5472753" @default.
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- W2616147981 hasPublicationYear "2017" @default.
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