Development of palsa bog in central highland, iceland
Topography and deposits in two selected bogs with permafrost in the central highland of Iceland are described. Radiocarbon dates and tephrochronological observation reaveal that development of permafrost in the bog started around 4,000 to 3,000 years B.P., succeeding to the formation of almost all d...
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Department of Geography, Tokyo Metropolitan University
1986
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fttokyomuniv:oai:tokyo-metro-u.repo.nii.ac.jp:00002812 2023-05-15T16:46:39+02:00 Development of palsa bog in central highland, iceland Hirakawa Kazuomi 1986 https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_uri&item_id=2812 http://hdl.handle.net/10748/3540 https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2812&item_no=1&attribute_id=18&file_no=1 en eng Department of Geography, Tokyo Metropolitan University https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_uri&item_id=2812 http://hdl.handle.net/10748/3540 Geographical Reports of Tokyo Metropolitan University, (21), 111-122(1986) 03868710 AA00200173 https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2812&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper 1986 fttokyomuniv 2022-06-16T23:31:32Z Topography and deposits in two selected bogs with permafrost in the central highland of Iceland are described. Radiocarbon dates and tephrochronological observation reaveal that development of permafrost in the bog started around 4,000 to 3,000 years B.P., succeeding to the formation of almost all deposits of bogs during the Atlantic time. Present irregularly undulating topography with slightly hilly microlandforms and varied depressions indicates that a thermokarst resulted from the more extensive development of former permafrost. That has occurred during these several hundred years since the beginning of the Middle Ages. Typical palsa, mineral palsas in most cases, formed only in such thermokarst depressions have occurred after the partial disappearence of the extensive permafrost. Report Iceland palsa palsas permafrost Thermokarst Tokyo Metropolitan University Institutional Repository Miyako-Dori |
institution |
Open Polar |
collection |
Tokyo Metropolitan University Institutional Repository Miyako-Dori |
op_collection_id |
fttokyomuniv |
language |
English |
description |
Topography and deposits in two selected bogs with permafrost in the central highland of Iceland are described. Radiocarbon dates and tephrochronological observation reaveal that development of permafrost in the bog started around 4,000 to 3,000 years B.P., succeeding to the formation of almost all deposits of bogs during the Atlantic time. Present irregularly undulating topography with slightly hilly microlandforms and varied depressions indicates that a thermokarst resulted from the more extensive development of former permafrost. That has occurred during these several hundred years since the beginning of the Middle Ages. Typical palsa, mineral palsas in most cases, formed only in such thermokarst depressions have occurred after the partial disappearence of the extensive permafrost. |
format |
Report |
author |
Hirakawa Kazuomi |
spellingShingle |
Hirakawa Kazuomi Development of palsa bog in central highland, iceland |
author_facet |
Hirakawa Kazuomi |
author_sort |
Hirakawa Kazuomi |
title |
Development of palsa bog in central highland, iceland |
title_short |
Development of palsa bog in central highland, iceland |
title_full |
Development of palsa bog in central highland, iceland |
title_fullStr |
Development of palsa bog in central highland, iceland |
title_full_unstemmed |
Development of palsa bog in central highland, iceland |
title_sort |
development of palsa bog in central highland, iceland |
publisher |
Department of Geography, Tokyo Metropolitan University |
publishDate |
1986 |
url |
https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_uri&item_id=2812 http://hdl.handle.net/10748/3540 https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2812&item_no=1&attribute_id=18&file_no=1 |
genre |
Iceland palsa palsas permafrost Thermokarst |
genre_facet |
Iceland palsa palsas permafrost Thermokarst |
op_relation |
https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_uri&item_id=2812 http://hdl.handle.net/10748/3540 Geographical Reports of Tokyo Metropolitan University, (21), 111-122(1986) 03868710 AA00200173 https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2812&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766036762672496640 |