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Deglaciationsstudier i Ovansiljan: bakgrund och resultat
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Physical Geography.
1984 (Swedish)Report (Other academic)
Abstract [en]

Ovansiljan is the northern part of the Siljan Ring Valley and adjacent deeply dissected hilly upland to the north and northwest of it in the interior of the province of Dalarna. The pattern and morphology of the fluvioglacial drainage and associated sediment deposits have been studied in a number of localities on both high and low grounds from Lake Ore and the Furudal area in the east over the Skattungby valley and Orsa in the center to the Våmå valley in the west.

Special interest has been focused on landforms and features situated close to the Highest Coast Line levels.

The work has been carried out mainly in the field using air photos and local large scale maps as background informations. A great many levellings, profile section measurements and large scale mapping have been carried out. Existing, more permanent or auxiliary, gravel excavation undertakings have been utilized for material studies, whenever possible and available. Photo documentation has always played an important part in the investigations.

It has been found that during the deglaciation stagnant ice bodies were isolated on higher grounds as well as on the lowest levels in the valleys and lake basins, separated in front of active valley ice lobes extending southwards from the main inland ice sheet in the north.

Due to the huge amounts of ice held by the Siljan Ring Valley deep basins the deglaciation was delayed causing obstacles to the inundation of the Ancylus Ice Lake waters up the Dalälven River valley. In combination with the rapid land upheaval the development of the shore marks of the Highest Coast Line (HK) took place at a much lower level than expected.

Place, publisher, year, edition, pages
Uppsala: Uppsala universitet, 1984. , p. 89
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:uu:diva-351385OAI: oai:DiVA.org:uu-351385DiVA, id: diva2:1209866
Note

Arkivexemplar i Uppsala universitets arkiv

Available from: 2018-05-24 Created: 2018-05-24 Last updated: 2018-06-05Bibliographically approved

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