By Dr Sam Roberson, British Geological Survey, Belfast Glaciation of Ireland during the Devensian The island of Ireland has been glaciated many times during the Quaternary period. The last glaciation in Ireland is referred to historically as the ‘Midlandian’, but now, the British-Irish term ‘Devensian’ is more commonly used. During the Devensian, the British-Irish Ice …
The British-Irish Ice Sheet reached its most recent maximum extent around 27,000 years ago. It was drained by many fast-flowing ice streams, and reached the edge of the continental shelf around its northern border. In the south, it terminated near the Vale of York, with a lobe penetrating down the eastern coastline as far as …
What is the shelf-edge margin of the British-Irish Ice Sheet? | How do we know the British-Irish Ice Sheet reached the shelf edge? | How did the British-Irish Ice Sheet retreat from the shelf edge? | Why do we study shelf-edge margins of the British-Irish Ice Sheet? What is the shelf-edge margin of the British-Irish …
Shelf-edge margins of the British-Irish Ice Sheet Read More »
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 …
Around 27,000 years ago, ice sheets reached their maximum across the world, after a period of global cooling caused by variations in the Earth’s orbit around the sun. There was a massive ice sheet in North America (the Laurentide Ice Sheet)[1, 2], a large Eurasian Ice Sheet covering Britain, Ireland and Scandinavia as well as …
A major new review of the last glaciation of the entire Antarctic Ice Sheet has just been published by Quaternary Science Reviews. The special issue of the journal includes a suite of review papers involving an international team of experts regarding the last glaciation of the entire Antarctic Ice Sheet. This review, which comprises six review papers …
Just published: most comprehensive review ever of the glaciation of Antartica Read More »
Pre-Quaternary Antarctic Peninsula Ice Sheet evolution | Quaternary glaciation of the Antarctic Peninsula | Last Glacial Maximum | Antarctic Peninsula Ice streams | References | Comments | This section is largely taken from Davies et al. 2012 (Quaternary Science Reviews)[1], and summarises Antarctic Peninsula Ice Sheet evolution throughout the Cenozoic, Last Glacial Maximum and into …
