A new paper out now in Geophysical Research Letters refutes the long-held idea that large-scale ice sheets developed in northeast Siberia during the past 130,000 years.
GFÚ researcher, John Jansen, is one of the international team who applied cosmogenic nuclide exposure dating to ice-transported boulders deposited in a set of glacial moraines in the remote Chersky mountain range. The relatively small size of these dated moraines rules out the possibility of a large ice sheet during the last glacial cycle. However, satellite-based mapping of glacial landforms confirms the existence of at least one older, and bigger glaciation that remains undated.
The paper, Absence of Large-Scale Ice Masses in Central Northeast Siberia During the Late Pleistocene, is available at: https://doi.org/10.1029/2023GL103594
