Public science lectures (in Danish)

How ice and water shaped Denmark

2016.02.01 | Laura Althoff Press

Date Wed 16 Mar
Time 19:00 21:00
Location Lakeside Lecture Theatres, Aarhus University

Professor of Geophysics David Lundbek Egholm, Department of Geoscience, Aarhus University
Associate Professor of Geology Nicolaj Krog Larsen, Department of Geoscience and Arctic Research Centre, Aarhus University

Hear about the way mountain chains throughout the world were eroded during the Ice Ages and why the Danish landscape looks the way it does.

The Danish landscape shows clear signs of having been shaped by ice and water. All Danes have noticed the glacial plains and moraines, as well as large rocks and stones transported by the ice from Norway or Sweden during the last Ice Ages. But precisely when and how was the Danish landscape created – and what is the connection with the mountains towards the north?
In the first part of the lecture, you can hear about the way climate and plate tectonics compete for the height and shape of the mountains throughout most of the world. This will be followed by how the Ice Ages transformed the mountains in Norway and Sweden, releasing the materials that subsequently ended up shaping the Danish landscape. You can also hear about the way the researchers in a new laboratory at Aarhus University use cosmic radiation and computer simulations to reveal how Scandinavia’s mountains developed over millions of years with high surfaces and deep fjords.
In the second part of the lecture, you will see highlights from the latest research into the Ice Ages in Denmark. New digital terrain maps will reveal completely new details of the Ice Age landscapes in different parts of Denmark. You will also see examples of the size of material, ice and water that moved. In Vendsyssel alone, for example, clay and sand corresponding to 200,000 truckloads were deposited every year during the last Ice Age – the Weichsel Ice Age – and this went on for 100,000 years.
The Ice Ages also had an impact on how the landscape is developing today, because the after-effects of the weight of the ice still cause the landscape to rise and fall – and this is good news with the sea level rising as a result of global warming.

Lecture / talk