The study, published in the journal Science Advances, shows that ice sheet expansion occurred during a period of global cooling known as the Middle Pleistocene transition. Well-preserved landforms include ridges and driftlines that provide insight into how rapidly ice sheets retreated, rose and rose.
The study also revealed older ocean current troughs beneath glacial formations, challenging previous interpretations. These grooves show that the North Sea was formed under the influence of strong currents even before the ice sheets settled on it.
From Newcastle University, Dr. Christine Batchelor says the research helps understand how ice sheets responded to climate change in the past.
Source: Ferra
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