Details
| Translated title of the contribution | Depositional architecture and palaeogeographic significance of Middle Pleistocene glaciolacustrine ice marginal deposits in northwestern Germany: a synoptic overview |
|---|---|
| Original language | German |
| Pages (from-to) | 212-235 |
| Number of pages | 24 |
| Journal | E and G Quaternary Science Journal |
| Volume | 60 |
| Issue number | 2-3 |
| Publication status | Published - 19 Jul 2011 |
Abstract
Ice-marginal deposits are important palaeogeographic archives, recording the glacial history of sedimentary basins. This paper focuses on the sedimentary characteristics, depositional history and palaeogeographic significance of ice-marginal deposits in the Weserbergland and Leinebergland, which were deposited into deep proglacial lakes at the terminus of the Saalian Drenthe ice sheet. The depositional architecture and deformation patterns of ice-marginal deposits will be discussed with respect to glacier termini dynamics, lake-level fluctuations and basement tectonics. During the last 10 years, a total of 27 sand and gravel pits and more than 4000 borehole logs were evaluated in order to document the regional pattern and character of Middle Pleistocene ice-marginal deposits. The field study was supported with a shear-wave seismic survey. Based on this data set, and analysis of digital elevation models with geographic information systems (GIS), we attempt to improve earlier palaeogeographic reconstructions of glacial lakes in the Weserbergland and Leinebergland and reconcile some inconsistencies presented in the current valley-fill models. We hypothesize that the formation and catastrophic drainage of deep proglacial lakes in front of the Drenthe ice sheet considerably influenced the ice-sheet stability and may have initiated the Hondsrug ice stream and rapid deglaciation. Based on our analysis, it seems unlikely that the Elsterian ice sheet reached farther south than the Saalian Drenthe ice sheet in the study area.
ASJC Scopus subject areas
- Arts and Humanities(all)
- Archaeology
- Earth and Planetary Sciences(all)
- Geology
- Earth and Planetary Sciences(all)
- Palaeontology
- Earth and Planetary Sciences(all)
- Stratigraphy
- Social Sciences(all)
- Archaeology
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In: E and G Quaternary Science Journal, Vol. 60, No. 2-3, 19.07.2011, p. 212-235.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Faziesarchitektur und paläogeographische Bedeutung mittelpleistozäner glazilakustriner Eisrandsysteme in Nordwest- Deutschland
T2 - ein synoptischer Überblick
AU - Winsemann, Jutta
AU - Brandes, Christian
AU - Polom, Ulrich
AU - Weber, Christian
N1 - Funding information: Financial support by the MWK Niedersachsen (11.2-76202- 17-7/08) is gratefully acknowledged. We thank reviewers O. Juschus and W. Stackebrandt for helpful comments, which helped to improve the manuscript. S. Cramm, S. Grüneberg, W. Rode and D. Vogel (LIAG) carried out the seismic survey and J. Meinsen and D. Steinmetz helped with artwork. Special thanks go to the Geological Survey of Lower Saxony (LBEG) for providing the borehole data and the owners of the sand and gravel pits for the permission to work on their properties. This work also benefited from the discussion with many colleagues; in particular we would like to thank B. Deters, J. Elbracht, the late J.-P. Grötzner, F.-J. Harms, H. Jordan, B. Rakowski, H. Röhm, P. Rohde, K. Skupin, E. Speetzen, D. Tanner and P. Wellmann for discussion and providing unpublished data. Many thanks are also due to J. Buscher for improving the English.
PY - 2011/7/19
Y1 - 2011/7/19
N2 - Ice-marginal deposits are important palaeogeographic archives, recording the glacial history of sedimentary basins. This paper focuses on the sedimentary characteristics, depositional history and palaeogeographic significance of ice-marginal deposits in the Weserbergland and Leinebergland, which were deposited into deep proglacial lakes at the terminus of the Saalian Drenthe ice sheet. The depositional architecture and deformation patterns of ice-marginal deposits will be discussed with respect to glacier termini dynamics, lake-level fluctuations and basement tectonics. During the last 10 years, a total of 27 sand and gravel pits and more than 4000 borehole logs were evaluated in order to document the regional pattern and character of Middle Pleistocene ice-marginal deposits. The field study was supported with a shear-wave seismic survey. Based on this data set, and analysis of digital elevation models with geographic information systems (GIS), we attempt to improve earlier palaeogeographic reconstructions of glacial lakes in the Weserbergland and Leinebergland and reconcile some inconsistencies presented in the current valley-fill models. We hypothesize that the formation and catastrophic drainage of deep proglacial lakes in front of the Drenthe ice sheet considerably influenced the ice-sheet stability and may have initiated the Hondsrug ice stream and rapid deglaciation. Based on our analysis, it seems unlikely that the Elsterian ice sheet reached farther south than the Saalian Drenthe ice sheet in the study area.
AB - Ice-marginal deposits are important palaeogeographic archives, recording the glacial history of sedimentary basins. This paper focuses on the sedimentary characteristics, depositional history and palaeogeographic significance of ice-marginal deposits in the Weserbergland and Leinebergland, which were deposited into deep proglacial lakes at the terminus of the Saalian Drenthe ice sheet. The depositional architecture and deformation patterns of ice-marginal deposits will be discussed with respect to glacier termini dynamics, lake-level fluctuations and basement tectonics. During the last 10 years, a total of 27 sand and gravel pits and more than 4000 borehole logs were evaluated in order to document the regional pattern and character of Middle Pleistocene ice-marginal deposits. The field study was supported with a shear-wave seismic survey. Based on this data set, and analysis of digital elevation models with geographic information systems (GIS), we attempt to improve earlier palaeogeographic reconstructions of glacial lakes in the Weserbergland and Leinebergland and reconcile some inconsistencies presented in the current valley-fill models. We hypothesize that the formation and catastrophic drainage of deep proglacial lakes in front of the Drenthe ice sheet considerably influenced the ice-sheet stability and may have initiated the Hondsrug ice stream and rapid deglaciation. Based on our analysis, it seems unlikely that the Elsterian ice sheet reached farther south than the Saalian Drenthe ice sheet in the study area.
KW - Elsterian glaciation
KW - glacial Lake Leine
KW - glacial Lake Weser
KW - Hondsrug ice stream
KW - ice-marginal deltas
KW - normal faults
KW - north west Germany
KW - Saalian glaciation
KW - subaqueous ice-contact fans
UR - http://www.scopus.com/inward/record.url?scp=84855824263&partnerID=8YFLogxK
U2 - 10.3285/eg.60.2-3.01
DO - 10.3285/eg.60.2-3.01
M3 - Artikel
AN - SCOPUS:84855824263
VL - 60
SP - 212
EP - 235
JO - E and G Quaternary Science Journal
JF - E and G Quaternary Science Journal
SN - 0424-7116
IS - 2-3
ER -