Stable isotopes in the basal silty ice preserved in the Greenland Ice Sheet at summit; environmental implications
| Autor: | Reginald Lorrain, Roland Souchez, Michèle Lemmens, Michel Stievenard, Arny E. Sveinbjörnsdottir, Sigfus J Johnsen, Laurent Janssens, Jean Jouzel, Jean-Louis Tison |
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| Přispěvatelé: | Laboratoire de Modélisation du Climat et de l'Environnement (LMCE) |
| Jazyk: | angličtina |
| Rok vydání: | 1994 |
| Předmět: |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Ice stream Greenland ice sheet Antarctic sea ice 010502 geochemistry & geophysics 01 natural sciences Arctic ice pack Ice shelf Paleontology Geophysics 13. Climate action Sea ice General Earth and Planetary Sciences Physical geography Ice divide Ice sheet [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Geology 0105 earth and related environmental sciences |
| Zdroj: | Geophysical Research Letters Geophysical Research Letters, American Geophysical Union, 1994, 21 (8), pp.693-696. ⟨10.1029/94GL00641⟩ |
| ISSN: | 0094-8276 1944-8007 |
| DOI: | 10.1029/94GL00641⟩ |
| Popis: | International audience; Modelling ice sheet behaviour in the context of climatic changes depends on initial and boundary conditions which can be better defined by studying the composition of basal ice. This study deals with basal ice reached by deep drilling at Summit in Central Greenland (GRIP core). The isotopic composition of this ice indicates that ice formed at the ground surface in the absence of the ice sheet largely contributed to its formation. The basal silty ice is a remnant of a growing stage of the ice sheet, possibly the original build up. |
| Databáze: | OpenAIRE |
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