Late Weichselian shore-level displacement on Nord-Jæren, south-west Norway

Thomsen, Hanne Erdman

doi:10.1080/11035898209453724

Cited by 39 publications

(31 citation statements)

References 12 publications

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“…15 14 C ka BP (Lehman et al, 1991;Sejrup et al, 1994). Radiocarbon dates on gyttja sediments from several basins on the northern parts of Jaeren have shown that the Jaeren area first became ice-free between 14 and 13 14 C ka BP (Thomsen, 1982;Paus, 1989), and according to dates obtained by Ommedal (unpublished), the present study area, Høgjaeren, deglaciated approximately 14 14 C ka BP.…”

Section: Introductionmentioning

confidence: 90%

“…2B). Two of the basins contained shallow bogs consisting of only organic-rich gyttja, whereas the other two revealed a stratigraphy typical of the Late Glacial sediments present elsewhere in the Jaeren area (Thomsen, 1982;Paus, 1989). From the base, that is a sterile, bluegrey laminated silt overlain by light brown more organicrich sediments, followed by a sterile silt and a transition Fig.…”

Section: Circular Ridgesmentioning

confidence: 96%

“…(D) Covariance plot of clast-form (Benn and Ballantyne, 1994) for samples of sandy diamicton, both from linear ridges and circular ridges. RA = percentage of clasts classified as VA or A, C 40 = percentage of clasts with c/a axis ratios ≤ 0.4. to dark brown organic-rich gyttja (Thomsen, 1982;Paus, 1989). This sequence is thought to represent the changes in climatic conditions from the deglaciation to the slightly warmer Bølling/Allerød period, the climatic deterioration during Younger Dryas and finally the Younger Dryas/Holocene transition.…”

Section: Circular Ridgesmentioning

confidence: 97%

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Hummocky moraine landscape on Jæren, SW Norway—implications for glacier dynamics during the last deglaciation

et al. 2006

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Section: Introductionmentioning

confidence: 90%

Section: Circular Ridgesmentioning

confidence: 96%

Section: Circular Ridgesmentioning

confidence: 97%

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Hummocky moraine landscape on Jæren, SW Norway—implications for glacier dynamics during the last deglaciation

et al. 2006

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“…Similar reinterpretations are also possible for the sealevel curves around Boknafjorden (Fig. 1) (Thomsen, 1982(Thomsen, , 1989Anundsen, 1985).…”

Section: Discussion the Younger Dryas Transgressionmentioning

confidence: 80%

Calendar year age estimates of Allerød–Younger Dryas sea‐level oscillations at Os, western Norway

Lohne¹,

Bondevik²,

Mangerud³

et al. 2004

J Quaternary Science

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Abstract:A detailed shoreline displacement curve documents the Younger Dryas transgression in western Norway. The relative sea-level rise was more than 9m in an area which subsequently experienced an emergence of almost 60 m. The sea-level curve is based on the stratigraphy of six isolation basins with bedrock thresholds. Effort has been made to establish an accurate chronology using a calendar year time-scale by 14C wiggle matching and the use of time synchronic markers (the Vedde Ash Bed and the postglacial rise in Betula (birch) pollen). The sea-level curve demonstrates that the Younger Dryas transgression started close to the Allerød-Younger Dryas transition and that the high stand was reached only 200 yr before the Younger Dryas-Holocene boundary. The sea level remained at the high stand for about 300 yr and 100 yr into Holocene it started to fall rapidly. The peak of the Younger Dryas transgression occurred simultaneously with the maximum extent of the ice-sheet readvance in the area. Our results support earlier geophysical modelling concluding a causal relationship between the Younger Dryas glacier advance and Younger Dryas transgression in western Norway. We argue that the sea-level curve indicates that the Younger Dryas glacial advance started in the late Allerød or close to the Allerød-Younger Dryas transition.

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“…Note, in Figure 5, that 8tabell's interpretation of diatom analyses from Klaesvatn and Hamravatn, Norway are particularly complex (marinelacustrine-marine-Iacustrine) and by implication were difficult to analyze. Renburg (1976);Stabell (1980); and Thomsen (1982). There are many areas of the world which have potential for fascinating interpretations of diatom analyses but few have been subjected to intensive glaCiation, related crustal deformation, and great changes in relative 8L as demonstrated in northern Europe.…”

Section: Compound Local Transgression and Regression Recordsmentioning

confidence: 97%