Sökning: L773:0435 3676 OR L773:1468 0459 >
Morphology, distrib...
Morphology, distribution and formation of relict marginal moraines in the Swedish mountains
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- Heyman, Jakob (författare)
- Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)
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- Hättestrand, Clas (författare)
- Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)
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(creator_code:org_t)
- 2016-11-15
- 2006
- Engelska.
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Ingår i: Geografiska Annaler: Series A, Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 88A:4, s. 253-265
- Relaterad länk:
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http://www.blackwell...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Relict marginal moraines are commonly used landforms in palaeoglaciological reconstructions. In the Swedish mountains, a large number of relict marginal moraines of variable morphology and origin occur. In this study, we have mapped 234 relict marginal moraines distributed all along the Swedish mountains and classified them into four morphological classes: cirque-and-valley moraines, valley-side moraines, complex moraines and cross-valley moraines. Of these, 46 moraines have been reclassified or are here mapped for the first time. A vast majority of the relict moraines are shown to have formed during deglaciation of an ice-sheet, rather than by local mountain glaciers as suggested in earlier studies. The relict marginal moraines generally indicate that deglaciation throughout the mountains was characterised by a retreating ice-sheet, successively damming glacial lakes, and downwasting around mountains. The general lack of moraines indicating valley and cirque glaciers during deglaciation suggests that climatic conditions were unfavourable for local glaciation during the last phase of the Weichselian. This interpretation contrasts with some earlier studies that have reconstructed the formation of local glaciers in the higher parts of the Swedish mountains during deglaciation.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Nyckelord
- marginal moraines
- moraine formation
- deglaciation
- Swedish mountains
- Earth sciences
- Geovetenskap
- Physical geography
- Naturgeografi
- Quaternary geology
- Kvartärgeologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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