Reconstructed ice-sheet limit in the Kara and Barents Sea area at about 50,000 years ago (Markhida Line) ...

Glacial landforms in northern Russia, from the Timan Ridge in the west to the east of the Urals, have been mapped by aerial photographs and satellite images supported by field observations. An east-west trending belt of fresh hummock-and-lake glaciokarst landscapes has been traced to the north of 67...

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Bibliographic Details
Main Authors: Astakhov, Valery I, Svendsen, John Inge, Matiouchkov, Alexei, Mangerud, Jan, Maslenikova, Olga, Tveranger, Jan
Format: Dataset
Language:English
Published: PANGAEA 1999
Subjects:
LATITUDE
LONGITUDE
AGE
Ice extent
Reconstructed data
Reconstructed
QUEENModels
Quaternary Environment of the Eurasian North QUEEN
Barents Sea
glacier
Ice
Ice Sheet
permafrost
Online Access:https://dx.doi.org/10.1594/pangaea.56020
https://doi.pangaea.de/10.1594/PANGAEA.56020
Description
Summary:Glacial landforms in northern Russia, from the Timan Ridge in the west to the east of the Urals, have been mapped by aerial photographs and satellite images supported by field observations. An east-west trending belt of fresh hummock-and-lake glaciokarst landscapes has been traced to the north of 67°N. The southern boundary of these landscapes is called the Markhida Line, which is interpreted as a nearly synchronous limit of the last ice sheet that affected this region. The hummocky landscapes are subdivided into three types according to the stage of postglacial modification: Markhida, Harbei and Halmer. The Halmer landscape on the Uralian piedmont in the east is the freshest, whereas the westernmost Markhida landscape is more eroded. The west- east gradient in morphology is considered to be a result of the time-transgressive melting of stagnant glacier ice and of the underlying permafrost. The pattern of ice-pushed ridges and other directional features reflects a dominant ice flow direction from the Kara ... : Further data see Lavrov (1977) data set: doi:10.1594/PANGAEA.56037; Yakovlev (1956) data set: doi:10.1594/PANGAEA.56038, Arslanov et al. (1987) data set: doi:10.1594/PANGAEA.56036 ...

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