Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Evidence for an ice shelf covering the central Arctic Ocean during the penultimate glaciation
Jakobsson, M.; Nilsson, J.; Anderson, L.; Backman, J.; Björk, G.; Cronin, T.M.; Kirchner, N.; Koshurnikov, A.; Mayer, L.; Noormets, R.; O'Regan, M.; Stranne, C.; Ananiev, R. (2016). Evidence for an ice shelf covering the central Arctic Ocean during the penultimate glaciation. Nature Comm. 7(10365): 10 pp. http://dx.doi.org/10.1038/ncomms10365
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723, meer
|   |
| Auteurs | | Top |
- Jakobsson, M.
- Nilsson, J.
- Anderson, L.
- Backman, J.
- Björk, G.
|
- Cronin, T.M., meer
- Kirchner, N.
- Koshurnikov, A.
- Mayer, L.
|
- Noormets, R.
- O'Regan, M.
- Stranne, C.
- Ananiev, R.
|
| Abstract |
The hypothesis of a km-thick ice shelf covering the entire Arctic Ocean during peak glacial conditions was proposed nearly half a century ago. Floating ice shelves preserve few direct traces after their disappearance, making reconstructions difficult. Seafloor imprints of ice shelves should, however, exist where ice grounded along their flow paths. Here we present new evidence of ice-shelf groundings on bathymetric highs in the central Arctic Ocean, resurrecting the concept of an ice shelf extending over the entire central Arctic Ocean during at least one previous ice age. New and previously mapped glacial landforms together reveal flow of a spatially coherent, in some regions >1-km thick, central Arctic Ocean ice shelf dated to marine isotope stage 6 (~140?ka). Bathymetric highs were likely critical in the ice-shelf development by acting as pinning points where stabilizing ice rises formed, thereby providing sufficient back stress to allow ice shelf thickening. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
