On deglaciation in Southern and Western Finland
The purpose of this study was to analyze the stages of deglaciation in southern and western Finland as well as in the Gulf of Bothnia. The positions of the continental ice sheet were determined in the light of the evidence provided by various end moraines, notably so‑called De Geer moraines. The fin...
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Geographical Society of Finland
1972
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fttsvojs:oai:journal.fi:article/40776 2023-05-15T16:40:23+02:00 On deglaciation in Southern and Western Finland Aartolahti, Toive 1972-01-01 https://fennia.journal.fi/article/view/40776 en eng Geographical Society of Finland https://fennia.journal.fi/article/view/40776 Copyright (c) 2014 Fennia Fennia; Vol 114 Nro 1 (1972) Fennia - International Journal of Geography; Vol 114 No 1 (1972) 1798-5617 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 1972 fttsvojs 2020-09-30T22:46:23Z The purpose of this study was to analyze the stages of deglaciation in southern and western Finland as well as in the Gulf of Bothnia. The positions of the continental ice sheet were determined in the light of the evidence provided by various end moraines, notably so‑called De Geer moraines. The findings were based on the interpretation of aerial photographs and topographic maps as well as on first‑hand investigations in the field. The earlier view of the deglaciation in the region covered proved to be correct, in the main, but revisions had to be made in certain details. The most important of the results involving changes were the following: 1) The continental ice sheet receded between the coast of the Gulf of Finland and the SalpausseIkä systems toward the northwest maintaining a straight front. No bend corresponding to the great bend in Salpausselkä I existed in the ice margin during this stage. The bend in the ice margin formed as it re‑advanced later to Salpausselkä 1. 2) No long and narrow glacial bay existed in the region of Lake Päijänne. 3) Hämeenkangas, the Näsijärvi formation and the Jyväskylä esker developed at the edge of the glacier synchronously, forming a bipartite end‑moraine are. 4) In the region of Etelä-Pohjamnaa (South Bothnia) and in the Quarken (Merenkurkku), the ice sheet retreated in a northwesterly direction. The ice margin did not cross the Quarken in a northwest‑southeast line. 5) In the great open stretch of the Gulf of Bothnia (= Bothnian Sea), there never existed a big glacial estuary – instead there was a great ice lobe. Article in Journal/Newspaper Ice Sheet Federation of Finnish Learned Societies: Scientific Journals Online Hämeenkangas ENVELOPE(25.493,25.493,66.655,66.655) |
institution |
Open Polar |
collection |
Federation of Finnish Learned Societies: Scientific Journals Online |
op_collection_id |
fttsvojs |
language |
English |
description |
The purpose of this study was to analyze the stages of deglaciation in southern and western Finland as well as in the Gulf of Bothnia. The positions of the continental ice sheet were determined in the light of the evidence provided by various end moraines, notably so‑called De Geer moraines. The findings were based on the interpretation of aerial photographs and topographic maps as well as on first‑hand investigations in the field. The earlier view of the deglaciation in the region covered proved to be correct, in the main, but revisions had to be made in certain details. The most important of the results involving changes were the following: 1) The continental ice sheet receded between the coast of the Gulf of Finland and the SalpausseIkä systems toward the northwest maintaining a straight front. No bend corresponding to the great bend in Salpausselkä I existed in the ice margin during this stage. The bend in the ice margin formed as it re‑advanced later to Salpausselkä 1. 2) No long and narrow glacial bay existed in the region of Lake Päijänne. 3) Hämeenkangas, the Näsijärvi formation and the Jyväskylä esker developed at the edge of the glacier synchronously, forming a bipartite end‑moraine are. 4) In the region of Etelä-Pohjamnaa (South Bothnia) and in the Quarken (Merenkurkku), the ice sheet retreated in a northwesterly direction. The ice margin did not cross the Quarken in a northwest‑southeast line. 5) In the great open stretch of the Gulf of Bothnia (= Bothnian Sea), there never existed a big glacial estuary – instead there was a great ice lobe. |
format |
Article in Journal/Newspaper |
author |
Aartolahti, Toive |
spellingShingle |
Aartolahti, Toive On deglaciation in Southern and Western Finland |
author_facet |
Aartolahti, Toive |
author_sort |
Aartolahti, Toive |
title |
On deglaciation in Southern and Western Finland |
title_short |
On deglaciation in Southern and Western Finland |
title_full |
On deglaciation in Southern and Western Finland |
title_fullStr |
On deglaciation in Southern and Western Finland |
title_full_unstemmed |
On deglaciation in Southern and Western Finland |
title_sort |
on deglaciation in southern and western finland |
publisher |
Geographical Society of Finland |
publishDate |
1972 |
url |
https://fennia.journal.fi/article/view/40776 |
long_lat |
ENVELOPE(25.493,25.493,66.655,66.655) |
geographic |
Hämeenkangas |
geographic_facet |
Hämeenkangas |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Fennia; Vol 114 Nro 1 (1972) Fennia - International Journal of Geography; Vol 114 No 1 (1972) 1798-5617 |
op_relation |
https://fennia.journal.fi/article/view/40776 |
op_rights |
Copyright (c) 2014 Fennia |
_version_ |
1766030785148616704 |