Was Hardangerfjorden, western Norway, glaciated during the Younger Dryas?

Author: MANGERUD J.

Source: Norsk Geologisk Tidsskrift, Volume 80, Number 3, 21 September 2000 , pp. 229-234(6)

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Abstract:

A new site with a shell-bearing till is described from the outer part of Hardangerfjorden. Two shell fragments from the till were dated to 10,870 ± 90 and 11,000 ± 40 radiocarbon years BP. These dates support the established hypothesis of a major glacial re-advance and an ice-filled Hardangerfjorden during the Younger Dryas. An opposite hypothesis, that Hardangerfjorden remained ice-free during the entire Younger Dryas, was proposed in a recent paper by Helle et al. (1997; Norsk Geologisk Tidsskrift 77, 101-117) and supported by several scientists during the Nordic Geological Winter Meeting in 2000. I argue in the present paper that the latter hypothesis is falsified, not only by the two new dates, but also by previously published dates from shell-bearing tills and sub-till sediments. In my opinion, the data presented by Helle et al. allow for alternative interpretations.

Language: English

Document Type: Research article

Affiliations: 1: University of Bergen, Department of Geology, Allégt. 41, N-5007 Bergen, Norway

Publication date: 2000-09-21

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