New evidence for Preboreal deglaciation of south-central Norway

Autor:	D. Mccarroll, Chris Caseldine, R. A. Shakesby
Rok vydání:	1990
Předmět:	geography geography.geographical_feature_category Geography Planning and Development Cirque Glacier Preboreal Moraine Deglaciation General Earth and Planetary Sciences Physical geography Ice sheet Quaternary Geomorphology Holocene Geology
Zdroj:	Norsk Geografisk Tidsskrift - Norwegian Journal of Geography. 44:121-130
ISSN:	1502-5292 0029-1951
DOI:	10.1080/00291959008552250
Popis:	Mapping and detailed morphological evidence suggests that mounds and ridges at 1200 to 1350 m in upper Breiseterdalen, western Jotunhcimen probably represent Rogen moraines, ice sheet marginal moraines and a cirque moraine. 14C dates from an intermoraine hollow suggest that peat development began about 8800 BP, confirming a Preboreal age for deglaciation. A need for a revised deglaciation chronology is suggested, with evidence for active ice present comparatively close to the present glacier limits until a late stage of deglaciation. A possible correlation of the Breiseterdalen moraines with similarly dated marginal moraines in southwest Norway is discussed.
Databáze:	OpenAIRE
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