Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland
About 760 glacial striae measurements made on polished bedrock outcrops indicate variations in the direction of the movement of Fennoscandian ice-stream in the lake basin of Lohjanjärvi, South Finland. Three major ice-movements of different ages can be observed in the area. The oldest were westerly...
Published in: | Bulletin of the Geological Society of Finland |
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Geological Society of Finland
1971
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Online Access: | https://doi.org/10.17741/bgsf/43.2.004 https://doaj.org/article/9c310ca082bb49b2a769d1846de7e2a9 |
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ftdoajarticles:oai:doaj.org/article:9c310ca082bb49b2a769d1846de7e2a9 2023-05-15T16:13:00+02:00 Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland G. Glückert 1971-12-01T00:00:00Z https://doi.org/10.17741/bgsf/43.2.004 https://doaj.org/article/9c310ca082bb49b2a769d1846de7e2a9 EN eng Geological Society of Finland http://www.geologinenseura.fi/bulletin/Volume43/sgs_bt_043_2_pages_173_184.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/43.2.004 0367-5211 1799-4632 https://doaj.org/article/9c310ca082bb49b2a769d1846de7e2a9 Bulletin of the Geological Society of Finland, Vol 43, Iss 2, Pp 173-184 (1971) Geology QE1-996.5 article 1971 ftdoajarticles https://doi.org/10.17741/bgsf/43.2.004 2022-12-31T08:11:26Z About 760 glacial striae measurements made on polished bedrock outcrops indicate variations in the direction of the movement of Fennoscandian ice-stream in the lake basin of Lohjanjärvi, South Finland. Three major ice-movements of different ages can be observed in the area. The oldest were westerly (240—290°) and the middle flow direction from NNW (320—350°). The youngest glacial movement advancing from a WNW direction (290—320°) was controlled more strongly by the topography than the others. The great NW—SE, N—S and ENE—WSW orientated depressions in the 59-m-deep basin of Lohjanjärvi represent tectonic fracture lines, and they have in a noticeable degree turned the direction of the ice flow in the basin. The lake is a preglacial depression. Its bedrock was originally formed by strong folding and fracturing of the Svecofennian mountain followed by weathering and hollow formation of gneissose limebearing zones and finally by glacial erosion of several ice ages. Two groups of small rock drumlins are formed in the direction of the main ice flow in plane areas at Vohloinen and Lohjansaari. The so-called »Zungenbecken» formations occur in some deep bays near the town of Lohja. Article in Journal/Newspaper Fennoscandian Directory of Open Access Journals: DOAJ Articles Small Rock ENVELOPE(-45.592,-45.592,-60.702,-60.702) Bulletin of the Geological Society of Finland 43 2 173 184 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 G. Glückert Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland |
topic_facet |
Geology QE1-996.5 |
description |
About 760 glacial striae measurements made on polished bedrock outcrops indicate variations in the direction of the movement of Fennoscandian ice-stream in the lake basin of Lohjanjärvi, South Finland. Three major ice-movements of different ages can be observed in the area. The oldest were westerly (240—290°) and the middle flow direction from NNW (320—350°). The youngest glacial movement advancing from a WNW direction (290—320°) was controlled more strongly by the topography than the others. The great NW—SE, N—S and ENE—WSW orientated depressions in the 59-m-deep basin of Lohjanjärvi represent tectonic fracture lines, and they have in a noticeable degree turned the direction of the ice flow in the basin. The lake is a preglacial depression. Its bedrock was originally formed by strong folding and fracturing of the Svecofennian mountain followed by weathering and hollow formation of gneissose limebearing zones and finally by glacial erosion of several ice ages. Two groups of small rock drumlins are formed in the direction of the main ice flow in plane areas at Vohloinen and Lohjansaari. The so-called »Zungenbecken» formations occur in some deep bays near the town of Lohja. |
format |
Article in Journal/Newspaper |
author |
G. Glückert |
author_facet |
G. Glückert |
author_sort |
G. Glückert |
title |
Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland |
title_short |
Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland |
title_full |
Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland |
title_fullStr |
Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland |
title_full_unstemmed |
Bewegungen des Inlandeises im Lohja—Seebecken, Südfinnland |
title_sort |
bewegungen des inlandeises im lohja—seebecken, südfinnland |
publisher |
Geological Society of Finland |
publishDate |
1971 |
url |
https://doi.org/10.17741/bgsf/43.2.004 https://doaj.org/article/9c310ca082bb49b2a769d1846de7e2a9 |
long_lat |
ENVELOPE(-45.592,-45.592,-60.702,-60.702) |
geographic |
Small Rock |
geographic_facet |
Small Rock |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
Bulletin of the Geological Society of Finland, Vol 43, Iss 2, Pp 173-184 (1971) |
op_relation |
http://www.geologinenseura.fi/bulletin/Volume43/sgs_bt_043_2_pages_173_184.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/43.2.004 0367-5211 1799-4632 https://doaj.org/article/9c310ca082bb49b2a769d1846de7e2a9 |
op_doi |
https://doi.org/10.17741/bgsf/43.2.004 |
container_title |
Bulletin of the Geological Society of Finland |
container_volume |
43 |
container_issue |
2 |
container_start_page |
173 |
op_container_end_page |
184 |
_version_ |
1765998602514071552 |