The hidden underwater map of the past
Published Date: 6/1/2020
Source: phys.org
Major climate changes leading to great fluctuations in sea levels took place during the Quaternary period 2.58 million years ago. The sea receded during the glaciations, because the water ended up stored in huge ice masses; when the ice melted, the sea levels rose. So "in this work we analyzed the rocky undersea coastal platforms formed throughout the period: the situation of all these terraces, their morphology, etc. Analyzing these morphologies means studying the formation of this underwater landscape throughout the Quaternary, the main result of the change in sea levels and rise of the earth's crust," explained Peru Bilbao-Lasa, researcher in the UPV/EHU's Department of Mineralogy and Petrology.