Hydrogen Stable Isotopes Record on Ice Cores From King George Island, Antarctica

O Registro de Isótopos Estáveis de Hidrogênio em Testemunhos de Gelo da Ilha Rei George, Antártica

dc.creatorFERRON, FRANCISCO ADOLFO
dc.creatorSIMÕES, JEFFERSON CARDIA
dc.date2000-06-30
dc.identifierhttps://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20193
dc.descriptionThe hydrogen stable isotopic record in four ice cores drilled on King George Island ice field (to the west of the Antarctic Peninsula) are examined. Isotopic composition variations are strongly homogenized, exceptly in the few upper meters of cores drilled above 650-m of elevation. Intensive melting followed by water percolation throughout the snow and firn pack lead to isotopic exchange and consequently strong homogenization. A stratigraphic profile showing several ice layers and a water table detected in the glacier strengthen this hypothesis. Isotopic ratios decrease with elevation, reflecting the strong melting and isotopic fractionation in lower areas.pt-BR
dc.formatapplication/pdf
dc.languagepor
dc.publisherInstituto de Geociências /Universidade Federal do Rio Grande do Sulpt-BR
dc.relationhttps://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/20193/pdf
dc.sourcePesquisas em Geociências; v. 27 n. 2 (2000): Pesquisas em Geociências; 87-96pt-BR
dc.source1807-9806
dc.source1518-2398
dc.subjectGlacioquímicapt-BR
dc.subjectTestemunhos de Gelopt-BR
dc.subjectAntártica.pt-BR
dc.subjectGeociênciaspt-BR
dc.titleHydrogen Stable Isotopes Record on Ice Cores From King George Island, Antarcticaen-US
dc.titleO Registro de Isótopos Estáveis de Hidrogênio em Testemunhos de Gelo da Ilha Rei George, Antárticapt-BR
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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