Glaciers are one of the most powerful forces shaping our local landscape. As glaciers flow downhill from mountains to the lowlands, they erode, transport, and deposit materials, forming a great array of glacial landforms. They can erode mountains, and change their morphology. Large glaciers and ice sheets can deposit great swathes of sands and gravels, …
This article on glacial geomorphological mapping was written by Dr Benjamin Chandler from Stockholm University. Why do we map glacial landforms? Geomorphological mapping is an important method used by glacial geologists to study the behaviour of past glaciers and ice sheets1. By mapping the distribution of glacial landforms and investigating the spatial relationships between different …
Temperate glaciers reach the pressure-melting point throughout, for at least for part of the year. Today, temperate glaciers are found in mild maritime climates such as southern Iceland, western Norway, New Zealand, and southern Chile, where both winter snowfall and summer melt rates are high. Temperate glaciers are often very sensitive to changes in climate …
“Glacial Landsystems” are assemblages of characteristic glacial sediments and landforms. Different types of glacier deposit different assemblages of these sediments and landforms. The study of glacial landsystems can therefore give us information about the type and style of palaeoglaciers, and give us insights into glacial processes. You can also view our work on the plateau …
This section of the website includes many examples of landforms created underneath and around the margins of glaciers. These depositional landforms typically form in two domains: subglacial landforms and ice-marginal landforms. Subglacial landforms include: A continuum of lineated bedforms, ranging from small scale (flutes), through to intermediate scale (10s of metres; Drumlins), through to large …
This page is based largely on Bendle et al. (2017) and summarises the glacial geomorphology of the North Patagonian Icefield region (46–48°S). Glaciers and the Patagonian landscape The Patagonian Ice Sheet has expanded and contracted at least five times during the last million years1. During glacial periods, large outlet glaciers discharged along major valleys (see …
Glacial geomorphology of the Patagonian Ice Sheet Read More »
What was the former Patagonian Ice Sheet? The Patagonian Ice Sheet was a large, elongated mountain ice mass that developed over the Andes mountains of southern South America during cold periods[1]. The Patagonian Ice Sheet has advanced and retreated at least 5 times in the last million years[2] in response to changes in global climate (i.e. …
Why should we reconstruct past ice sheets? | The past is the key to the future | How do we reconstruct past ice-sheet change? | How do we relate ice-sheet change to climate? | Further Reading | Comments | Why should we reconstruct past ice sheets? Glacial geologists love to go out into the field, …
Glaciers have a huge impact on our landscape. They are one of the most powerful forces shaping our Earth surface. These pages introduce some of the most important erosional and depositional landforms, and highlight the processes by which they form. Glaciers of different types produce different suites of characteristic landforms. We call these glacial landsystems. …
This section of the website focuses on former ice sheets. How can we tell how ice sheets behaved in the past? How did ice sheets interact with past climate change? In this section, you can find out about the different types of glacier landforms and sediments. You can also learn about the characteristic types and …
