The formation of raised beaches in southern Finland during the Ancylus and Litorina stages
In studies of the shoreline displacement it has generally been accepted that raised beaches were formed during the highest positions of water level during transgressions, before the subsequent regressions, at times when the water level remained long enough (300-1300 years) in the same relative posit...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Geological Society of Finland
1996-12-01
|
Series: | Bulletin of the Geological Society of Finland |
Subjects: | |
Online Access: | http://www.geologinenseura.fi/bulletin/Volume68/sgs_bt_068_2_pages_034_039.pdf |
_version_ | 1818758682820739072 |
---|---|
author | T. Jantunen J. Donner |
author_facet | T. Jantunen J. Donner |
author_sort | T. Jantunen |
collection | DOAJ |
description | In studies of the shoreline displacement it has generally been accepted that raised beaches were formed during the highest positions of water level during transgressions, before the subsequent regressions, at times when the water level remained long enough (300-1300 years) in the same relative position. There were, however, also similar times for the formation of raised beaches during the relative regressions preceding the transgressions. As a result of this the raised beaches often occur together in pairs, where the older beach of the regression is lower than that of the younger transgression beach. It follows from this new explanation that the former water level fluctuations in the Baltic Sea were fewer than the numerous raised beaches at various altitudes would suggest, as there was only one relative transgression for each pair of raised beaches. |
first_indexed | 2024-12-18T06:30:43Z |
format | Article |
id | doaj.art-68e2358edd784266a6c4919b1f2ac361 |
institution | Directory Open Access Journal |
issn | 0367-5211 1799-4632 |
language | English |
last_indexed | 2024-12-18T06:30:43Z |
publishDate | 1996-12-01 |
publisher | Geological Society of Finland |
record_format | Article |
series | Bulletin of the Geological Society of Finland |
spelling | doaj.art-68e2358edd784266a6c4919b1f2ac3612022-12-21T21:17:54ZengGeological Society of FinlandBulletin of the Geological Society of Finland0367-52111799-46321996-12-01682343910.17741/bgsf/68.2.003The formation of raised beaches in southern Finland during the Ancylus and Litorina stagesT. JantunenJ. DonnerIn studies of the shoreline displacement it has generally been accepted that raised beaches were formed during the highest positions of water level during transgressions, before the subsequent regressions, at times when the water level remained long enough (300-1300 years) in the same relative position. There were, however, also similar times for the formation of raised beaches during the relative regressions preceding the transgressions. As a result of this the raised beaches often occur together in pairs, where the older beach of the regression is lower than that of the younger transgression beach. It follows from this new explanation that the former water level fluctuations in the Baltic Sea were fewer than the numerous raised beaches at various altitudes would suggest, as there was only one relative transgression for each pair of raised beaches.http://www.geologinenseura.fi/bulletin/Volume68/sgs_bt_068_2_pages_034_039.pdfraised beachessea level changestransgressionregressionupliftLitorina SeaAncylus LakeHolocenesouthern Finland |
spellingShingle | T. Jantunen J. Donner The formation of raised beaches in southern Finland during the Ancylus and Litorina stages Bulletin of the Geological Society of Finland raised beaches sea level changes transgression regression uplift Litorina Sea Ancylus Lake Holocene southern Finland |
title | The formation of raised beaches in southern Finland during the Ancylus and Litorina stages |
title_full | The formation of raised beaches in southern Finland during the Ancylus and Litorina stages |
title_fullStr | The formation of raised beaches in southern Finland during the Ancylus and Litorina stages |
title_full_unstemmed | The formation of raised beaches in southern Finland during the Ancylus and Litorina stages |
title_short | The formation of raised beaches in southern Finland during the Ancylus and Litorina stages |
title_sort | formation of raised beaches in southern finland during the ancylus and litorina stages |
topic | raised beaches sea level changes transgression regression uplift Litorina Sea Ancylus Lake Holocene southern Finland |
url | http://www.geologinenseura.fi/bulletin/Volume68/sgs_bt_068_2_pages_034_039.pdf |
work_keys_str_mv | AT tjantunen theformationofraisedbeachesinsouthernfinlandduringtheancylusandlitorinastages AT jdonner theformationofraisedbeachesinsouthernfinlandduringtheancylusandlitorinastages AT tjantunen formationofraisedbeachesinsouthernfinlandduringtheancylusandlitorinastages AT jdonner formationofraisedbeachesinsouthernfinlandduringtheancylusandlitorinastages |