Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation
Nine seismic stratigraphic units were distinguished, and their distribution mapped, in an 80 × 130 km submeridionally oriented area in the north‐central Baltic Sea, east of Gotska Sandön and Farö. Analysis of these units revealed a great influence of the bedrock topography on the structure and distr...
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crwiley:10.1111/j.1502-3885.2002.tb01080.x 2024-06-02T08:08:18+00:00 Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation NOORMETS, RIKO FLODÉN, TOM 2002 http://dx.doi.org/10.1111/j.1502-3885.2002.tb01080.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.2002.tb01080.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.2002.tb01080.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 31, issue 4, page 362-377 ISSN 0300-9483 1502-3885 journal-article 2002 crwiley https://doi.org/10.1111/j.1502-3885.2002.tb01080.x 2024-05-03T12:06:44Z Nine seismic stratigraphic units were distinguished, and their distribution mapped, in an 80 × 130 km submeridionally oriented area in the north‐central Baltic Sea, east of Gotska Sandön and Farö. Analysis of these units revealed a great influence of the bedrock topography on the structure and distribution of the glacial deposits. Major glacially eroded valleys in the Baltic Clint, connecting the Faro Deep and the North Central Baltic Basin (Harff & Winterhalter 1996) across a narrow sill, form an extensive submeridional bedrock depression. The concentration of ice flow into this depression is reflected in the drumlinized surface of the till near the Baltic Clint. Large eskers in the elongated bedrock depressions and on the Ordovician Plateau mark the locations of former subglacial meltwater conduits. Termination of the eskers with extensive glacio fluvial outwash fans at the northern limit of the Farö Deep, the presence of subaquatic melt‐out till in the bottom of it, and wedge‐shaped ice‐marginal grounding‐line deposit on the Silurian Plateau suggest floating ice margin conditions in the low‐lying areas and a local ice shelf confined to the Frö Deep during the deglaciation. Article in Journal/Newspaper Ice Sheet Ice Shelf Wiley Online Library Sandön ENVELOPE(22.233,22.233,65.517,65.517) Boreas 31 4 362 377 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Nine seismic stratigraphic units were distinguished, and their distribution mapped, in an 80 × 130 km submeridionally oriented area in the north‐central Baltic Sea, east of Gotska Sandön and Farö. Analysis of these units revealed a great influence of the bedrock topography on the structure and distribution of the glacial deposits. Major glacially eroded valleys in the Baltic Clint, connecting the Faro Deep and the North Central Baltic Basin (Harff & Winterhalter 1996) across a narrow sill, form an extensive submeridional bedrock depression. The concentration of ice flow into this depression is reflected in the drumlinized surface of the till near the Baltic Clint. Large eskers in the elongated bedrock depressions and on the Ordovician Plateau mark the locations of former subglacial meltwater conduits. Termination of the eskers with extensive glacio fluvial outwash fans at the northern limit of the Farö Deep, the presence of subaquatic melt‐out till in the bottom of it, and wedge‐shaped ice‐marginal grounding‐line deposit on the Silurian Plateau suggest floating ice margin conditions in the low‐lying areas and a local ice shelf confined to the Frö Deep during the deglaciation. |
format |
Article in Journal/Newspaper |
author |
NOORMETS, RIKO FLODÉN, TOM |
spellingShingle |
NOORMETS, RIKO FLODÉN, TOM Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation |
author_facet |
NOORMETS, RIKO FLODÉN, TOM |
author_sort |
NOORMETS, RIKO |
title |
Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation |
title_short |
Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation |
title_full |
Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation |
title_fullStr |
Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation |
title_full_unstemmed |
Glacial deposits and ice‐sheet dynamics in the north‐central Baltic Sea during the last deglaciation |
title_sort |
glacial deposits and ice‐sheet dynamics in the north‐central baltic sea during the last deglaciation |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1111/j.1502-3885.2002.tb01080.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.2002.tb01080.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.2002.tb01080.x |
long_lat |
ENVELOPE(22.233,22.233,65.517,65.517) |
geographic |
Sandön |
geographic_facet |
Sandön |
genre |
Ice Sheet Ice Shelf |
genre_facet |
Ice Sheet Ice Shelf |
op_source |
Boreas volume 31, issue 4, page 362-377 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1502-3885.2002.tb01080.x |
container_title |
Boreas |
container_volume |
31 |
container_issue |
4 |
container_start_page |
362 |
op_container_end_page |
377 |
_version_ |
1800753502371184640 |