An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia
The three-layer Maxwell half-space model of the earth and a disk-load approximation of the Weichselian deglaciation history of Fennoscandia are used to calculate glacio-isostatic adjustment for this region. The calculations include the effects of deglaciation-induced geoid perturbations nd eustatic...
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Universität Stuttgart
1987
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ftdatacite:10.18419/opus-7133 2023-05-15T16:11:39+02:00 An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia Wolf, Detlef 1987 https://dx.doi.org/10.18419/opus-7133 http://elib.uni-stuttgart.de/handle/11682/7150 en eng Universität Stuttgart Lithosphäre , Fennoskandia , Glazialisostasie 550 Collection article 1987 ftdatacite https://doi.org/10.18419/opus-7133 2021-11-05T12:55:41Z The three-layer Maxwell half-space model of the earth and a disk-load approximation of the Weichselian deglaciation history of Fennoscandia are used to calculate glacio-isostatic adjustment for this region. The calculations include the effects of deglaciation-induced geoid perturbations nd eustatic sea-level rise and regard (1) lithosphere thickness, (2) asthenosphere viscosity and (3) ice thickness as the free model parameters. Numerical values of parameters (1}-(3) are estimated by calculating the past land uplift and present land-uplift rate observed in central Sweden (glaciation centre) and the past land uplift and past land tilt observed in southern Finland (glaciation margin). The uniqueness of the estimates and their sensitivity to uncertainties in (4) subasthenosphere viscosity, (5) ice cross-section and (6) deglaciation time are also assessed. The principal result of the investigation is that it suggests an upper bound of 80 km on the thickness of the Fennoscandian lithosphere. Article in Journal/Newspaper Fennoscandia Fennoscandian DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Lithosphäre , Fennoskandia , Glazialisostasie 550 |
spellingShingle |
Lithosphäre , Fennoskandia , Glazialisostasie 550 Wolf, Detlef An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia |
topic_facet |
Lithosphäre , Fennoskandia , Glazialisostasie 550 |
description |
The three-layer Maxwell half-space model of the earth and a disk-load approximation of the Weichselian deglaciation history of Fennoscandia are used to calculate glacio-isostatic adjustment for this region. The calculations include the effects of deglaciation-induced geoid perturbations nd eustatic sea-level rise and regard (1) lithosphere thickness, (2) asthenosphere viscosity and (3) ice thickness as the free model parameters. Numerical values of parameters (1}-(3) are estimated by calculating the past land uplift and present land-uplift rate observed in central Sweden (glaciation centre) and the past land uplift and past land tilt observed in southern Finland (glaciation margin). The uniqueness of the estimates and their sensitivity to uncertainties in (4) subasthenosphere viscosity, (5) ice cross-section and (6) deglaciation time are also assessed. The principal result of the investigation is that it suggests an upper bound of 80 km on the thickness of the Fennoscandian lithosphere. |
format |
Article in Journal/Newspaper |
author |
Wolf, Detlef |
author_facet |
Wolf, Detlef |
author_sort |
Wolf, Detlef |
title |
An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia |
title_short |
An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia |
title_full |
An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia |
title_fullStr |
An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia |
title_full_unstemmed |
An upper bound on lithosphere thickness from glacio-isostatic adjustment in Fennoscandia |
title_sort |
upper bound on lithosphere thickness from glacio-isostatic adjustment in fennoscandia |
publisher |
Universität Stuttgart |
publishDate |
1987 |
url |
https://dx.doi.org/10.18419/opus-7133 http://elib.uni-stuttgart.de/handle/11682/7150 |
genre |
Fennoscandia Fennoscandian |
genre_facet |
Fennoscandia Fennoscandian |
op_doi |
https://doi.org/10.18419/opus-7133 |
_version_ |
1765996810709499904 |