case-study

Ellipsoidal Basins

Ellipsoidal Basins is a geographical term used to describe deep, elongated lakes, formed by subglacial activity beneath past ice sheets [1]. Examples of these basins include the Great Lakes and Finger Lakes of North America [1,2]. These basins were formed either where the ice was topographically constrained (Finger Lakes), had vulnerable, softer, geology (the Great …

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The Younger Dryas Glacial Map

Welcome to the Younger Dryas Glacial Map! Here, you can explore the glaciation of the UK during the Younger Dryas glaciation. In the UK, this period is also called the “Loch Lomond Stadial”. At this time (12,900 to 11,700 years ago), there was a period of abrupt cooling. Glaciers began to grow again in much …

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Mass Balance teaching resources

This page highlights some of the excellent teaching resources available for exploring glacier mass balance. For more ideas, see the Resources for Teachers page. Case study: USGS Benchmark Glaciers The USGS has an excellent resource on the mass balance of Lemon Creek Glacier, a World Reference Glacier, and the other USGS Benchmark Glaciers. This has …

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Glacial erratics

What is a glacial erratic? Glacial erratics, often simply called erratics, or erratic boulders, are rocks that have been transported by ice and deposited elsewhere. The type of rock (lithology) that the glacial erratic is made from is different to the lithology of the bedrock where the erratic is deposited. For example, an erratic could …

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PATICE interactive map

In this interactive map, you can explore all the glacial landforms and chronologies that were used to generate the new reconstructions of the last Patagonian Ice Sheet from 35,000 years ago to the present day. Click the PATICE logo below to launch the online interactive webmap. The GIF below shows the extent of the ice …

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PATICE

PATICE: The Patagonian Ice Sheet from 35,000 years ago to the present day This page provides a brand-new reconstruction of the Patagonian Ice Sheet from 35,000 years ago to the present day (called PATICE). PATICE is a new compilation of published ages and geomorphology, ranked and assessed and recalibrated, which we use to generate new …

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Ice-dammed lake landsystems

Ice-dammed lakes are a common feature of glaciated mountain ranges. They form wherever glacial ice blocks the drainage of rivers or meltwater. This includes: where a glacier blocks a trunk or tributary valley; and where a glacier fills an overdeepened valley created by glacial erosion Today, ice-dammed lakes exist at the margins of many mountain …

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