Iceberg scours, iceberg gravity craters and current erosion marks from a gigantic Preboreal flood in southeastern Norway
作者:
ODDVAR LONGVA,
MORTEN K. THORESEN,
期刊:
Boreas
(WILEY Available online 1991)
卷期:
Volume 20,
issue 1
页码: 47-62
ISSN:0300-9483
年代: 1991
DOI:10.1111/j.1502-3885.1991.tb00458.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
At approximately 9200 BP the Romerike area of southeastern Norway was flooded as much asc.35 m by a jøkulhlaup from the ice‐dammed lake ‘Nedre Gl'amsjø’. The flood formed characteristic erosion patterns in the surface of soft sediments and eroded channels in overflow passes. Icebergs driven by the floodwater scoured the bottom and formed imprints on the flooded surface when they were stranded as the waterlevel fell. Information from the eroison features is used to reconstruct the palaeoc
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