Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

The “Lund Moraine”–the geomorphic limit of the last Young Baltic ice advance in the Öresund region

Regnéll, Carl ; Alexanderson, Helena LU ; Greenwood, Sarah L. ; Gyllencreutz, Richard and Öhrling, Christian (2023) In GFF
Abstract

Here we present geomorphological evidence of a previously unrecognised ∼50 km long, ice-marginal moraine complex in southwestern Skåne, southernmost Sweden, which we name the “Lund Moraine”. This lobate moraine marks a sharp boundary between heavily streamlined and gently undulating landscapes, and closely outlines the extent of the “Lund till/diamicton”. We interpret that the moraine was formed by a northward readvance, corresponding to a last Young Baltic readvance of the Scandinavian Ice Sheet into Öresund. Consequently, we infer that the “Lund till/diamicton” was formed subglacially, in contrast to earlier interpretations of it being a waterlain diamicton. Based on previously published dates, stratigraphically below “Lund... (More)

Here we present geomorphological evidence of a previously unrecognised ∼50 km long, ice-marginal moraine complex in southwestern Skåne, southernmost Sweden, which we name the “Lund Moraine”. This lobate moraine marks a sharp boundary between heavily streamlined and gently undulating landscapes, and closely outlines the extent of the “Lund till/diamicton”. We interpret that the moraine was formed by a northward readvance, corresponding to a last Young Baltic readvance of the Scandinavian Ice Sheet into Öresund. Consequently, we infer that the “Lund till/diamicton” was formed subglacially, in contrast to earlier interpretations of it being a waterlain diamicton. Based on previously published dates, stratigraphically below “Lund till/diamicton”, we infer that this readvance occurred sometime after c. 16 cal. ka BP. This readvance could offer an explanation to the apparent discrepancy of observations of the postglacial marine limit from outside and inside the Lund Moraine. Our observations will hopefully settle the ∼50 years long controversy concerning the extent or even existence of such a readvance into Öresund. We expect that our findings will guide further work towards disentangling the complex deglacial history of Skåne and the wider Öresund region.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
deglaciation, Fennoscandian ice sheet, LiDAR, Low Baltic ice stream, Scandinavian Ice Sheet, Skåne, Young Baltic ice stream
in
GFF
publisher
Taylor & Francis
external identifiers
  • scopus:85180178974
ISSN
1103-5897
DOI
10.1080/11035897.2023.2281676
language
English
LU publication?
yes
id
65076c61-54eb-4b94-a060-bd89cfe86f64
date added to LUP
2024-01-11 09:55:36
date last changed
2024-01-11 09:57:00
@article{65076c61-54eb-4b94-a060-bd89cfe86f64,
  abstract     = {{<p>Here we present geomorphological evidence of a previously unrecognised ∼50 km long, ice-marginal moraine complex in southwestern Skåne, southernmost Sweden, which we name the “Lund Moraine”. This lobate moraine marks a sharp boundary between heavily streamlined and gently undulating landscapes, and closely outlines the extent of the “Lund till/diamicton”. We interpret that the moraine was formed by a northward readvance, corresponding to a last Young Baltic readvance of the Scandinavian Ice Sheet into Öresund. Consequently, we infer that the “Lund till/diamicton” was formed subglacially, in contrast to earlier interpretations of it being a waterlain diamicton. Based on previously published dates, stratigraphically below “Lund till/diamicton”, we infer that this readvance occurred sometime after c. 16 cal. ka BP. This readvance could offer an explanation to the apparent discrepancy of observations of the postglacial marine limit from outside and inside the Lund Moraine. Our observations will hopefully settle the ∼50 years long controversy concerning the extent or even existence of such a readvance into Öresund. We expect that our findings will guide further work towards disentangling the complex deglacial history of Skåne and the wider Öresund region.</p>}},
  author       = {{Regnéll, Carl and Alexanderson, Helena and Greenwood, Sarah L. and Gyllencreutz, Richard and Öhrling, Christian}},
  issn         = {{1103-5897}},
  keywords     = {{deglaciation; Fennoscandian ice sheet; LiDAR; Low Baltic ice stream; Scandinavian Ice Sheet; Skåne; Young Baltic ice stream}},
  language     = {{eng}},
  publisher    = {{Taylor & Francis}},
  series       = {{GFF}},
  title        = {{The “Lund Moraine”–the geomorphic limit of the last Young Baltic ice advance in the Öresund region}},
  url          = {{http://dx.doi.org/10.1080/11035897.2023.2281676}},
  doi          = {{10.1080/11035897.2023.2281676}},
  year         = {{2023}},
}