Ólafur Ingólfsson

TL;DR: In this paper, the maximum limits of the Eurasian ice sheets during four glaciations have been reconstructed: (1) the Late Saalian (>140 ka), (2) the Early Weichselian (100-80 ka),(3) the Middle Weichsellian (60-50 ka), and (4) the late Weichselsian (25-15 ka) based on satellite data and aerial photographs combined with geological field investigations in Russia and Siberia, and with marine seismic and sediment core data.

TL;DR: In this paper, the occurrence of an early Preboreal climatic cooling/oscillation (PBO) in lacustrine and glacial records from northwest Europe, Iceland and Greenland is reviewed and documented.

TL;DR: It is demonstrated that brown bears and PBs have had sufficiently independent evolutionary histories over the last 4–5 million years to leave imprints in the PB nuclear genome that likely are associated with ecological adaptation to the Arctic environment.

TL;DR: In this article, the authors used radiocarbon, luminescence and amino acid dating of interbedded interstadial and interglacial sediments to identify three major glacial advances during the Weichselian.

TL;DR: The authors examined available circum-Antarctic glacial history archives on land, related to developments after the Last Glacial Maximum (LGM), and concluded that Holocene environmental development in Antarctica differed from that in the Northern Hemisphere.