The Rautuvaara section, western Finnish Lapland, revisited - new age constraints indicate a complex Scandinavian Ice Sheet history in northern Fennoscandia during the Weichselian Stage

Boreas ◽  
2014 ◽  
Vol 44 (1) ◽  
pp. 68-80 ◽  
Author(s):  
Juha Pekka Lunkka ◽  
Pertti Sarala ◽  
Philip L. Gibbard
Keyword(s):  
Ice Sheet ◽  
New Age ◽  
Northern Fennoscandia ◽  
Finnish Lapland ◽  
Scandinavian Ice Sheet ◽  
Age Constraints

New age constraints from the SW Baltic Sea area - implications for Scandinavian Ice Sheet dynamics and palaeo-environmental conditions during MIS 3 and early MIS 2

Boreas ◽  
2016 ◽  
Vol 46 (1) ◽  
pp. 34-52 ◽  
Author(s):  
Michael Kenzler ◽  
Sumiko Tsukamoto ◽  
Stefan Meng ◽  
Manfred Frechen ◽  
Heiko Hüneke
Keyword(s):  
Baltic Sea ◽  
Environmental Conditions ◽  
Ice Sheet ◽  
New Age ◽  
Mis 3 ◽  
Scandinavian Ice Sheet ◽  
Ice Sheet Dynamics ◽  
Sea Area ◽  
Age Constraints

scholarly journals New age constraints for the maximum extent of the last British-Irish Ice Sheet (NW sector)

2012 ◽  
Vol 28 (1) ◽  
pp. 2-7 ◽  
Author(s):  
J. D. Everest ◽  
T. Bradwell ◽  
M. Stoker ◽  
S. Dewey
Keyword(s):  
Ice Sheet ◽  
New Age ◽  
Maximum Extent ◽  
Age Constraints

scholarly journals New age constraints for the limit of the British-Irish Ice Sheet on the Isles of Scilly

2017 ◽  
Vol 32 (1) ◽  
pp. 48-62 ◽  
Author(s):  
R. K. Smedley ◽  
J. D. Scourse ◽  
D. Small ◽  
J. F. Hiemstra ◽  
G. A. T. Duller ◽  
...  
Keyword(s):  
Ice Sheet ◽  
New Age ◽  
Age Constraints

scholarly journals Thermomechanical modelling of the Scandinavian ice sheet: implications for ice-stream formation

1999 ◽  
Vol 28 ◽  
pp. 83-89 ◽  
Author(s):  
A. J. Payne ◽  
D.J. Baldwin
Keyword(s):  
Three Dimensional ◽  
Ice Sheet ◽  
Ice Streams ◽  
Ice Flow ◽  
Low Viscosity ◽  
Ice Stream ◽  
Scandinavian Ice Sheet ◽  
The Baltic ◽  
Stream Formation ◽  
Initial Results

AbstractThis work attempts to explain the fan-like landform assemblages observed in satellite images of the area covered by the former Scandinavian ice sheet (SIS). These assemblages have been interpreted as evidence of large ice streams within the SIS. If this interpretation is correct, then it calls into doubt current theories on the formation of ice streams. These theories regard soft sediment and topographic troughs as being the key determinants of ice-stream location. Neither can be used to explain the existence of ice streams on the flat, hard-rock area of the Baltic Shield. Initial results from a three-dimensional, thermomechanical ice-sheet model indicate that interactions between ice flow, form and temperature can create patterns similar to those mentioned above. The model uses a realistic, 20 km resolution gridded topography and a simple parameterization of accumulation and ablation. It produces patterns of maximum ice-sheet extent, which are similar to those reconstructed from the area’s glacial geomorphology. Flow in the maximum, equilibrium ice sheet is dominated by wedges of warm, low-viscosity, fast-flowing ice. These are separated by areas of cold, slow-flowing ice. This patterning appears to develop spontaneously as the modelled ice sheet grows.

Extent and age of the Last Glacial Maximum in the southeastern sector of the Scandinavian Ice Sheet

2001 ◽  
Vol 31 (1-4) ◽  
pp. 407-425 ◽  
Author(s):  
Juha Pekka Lunkka ◽  
Matti Saarnisto ◽  
Valeri Gey ◽  
Igor Demidov ◽  
Vera Kiselova
Keyword(s):  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Glacial Maximum ◽  
Last Glacial ◽  
Scandinavian Ice Sheet ◽  
The Last Glacial Maximum ◽  
The Last Glacial

In situ 10Be exposure ages from southeastern Norway: implications for the geometry of the Weichselian Scandinavian ice sheet

2006 ◽  
Vol 25 (9-10) ◽  
pp. 1097-1109 ◽  
Author(s):  
Henriette Linge ◽  
Edward J. Brook ◽  
Atle Nesje ◽  
Grant M. Raisbeck ◽  
Françoise Yiou ◽  
...  
Keyword(s):  
Ice Sheet ◽  
Scandinavian Ice Sheet ◽  
Exposure Ages

scholarly journals Late Weichselian thermal state at the base of the Scandinavian Ice Sheet

2019 ◽  
Author(s):  
Dmitry Y. Demezhko ◽  
Anastasia A. Gornostaeva ◽  
Alexander N. Antipin
Keyword(s):  
Thermal State ◽  
Ice Sheet ◽  
Ground Surface ◽  
Substantial Part ◽  
Temperature Pattern ◽  
Glacial Cycle ◽  
Surface Temperatures ◽  
Scandinavian Ice Sheet ◽  
Late Weichselian ◽  
The Last Glacial

Abstract. Geothermal estimates of the ground surface temperatures for the last glacial cycle in Northern Europe has been analyzed. During the Middle and Late Weichselian (55–12 kyr BP) a substantial part of this area was covered by the Scandinavian Ice Sheet. The analysis of geothermal data has allowed reconstructing limits of the ice sheet extension and its basal thermal state in the Late Weichselian. Ground surface temperatures outside the ice sheet were extremely low (from −8 to −18 °C). Within the ice sheet, there were both thawed and frozen zones. The revealed temperature pattern is generally consistent with the modern one for the ground surface temperatures in Greenland that makes it possible to consider these ice sheets as analogues. The anomalous climatically induced surface heat flux and orbital insolation of the Earth varied consistently outside the glaciation and independently within the limits of the ice sheet.

Sign in / Sign up

Export Citation Format

Share Document