Glaciers Flashcards
(43 cards)
When was the little ice age?
Between 1645 and 1715
Volcanic eruptions due to short term climate change affecting the glacial system?
-Laki in Iceland, 1783 - temps as cold as 3 degrees in Europe
-Tambora on Sumbawa Island, 1815 - reduced global temps by up to 0.7 degrees for 2-3 years
An example of a cold and warm-based glacier?
-Cold-based - Antarctic and Greenland ice sheets
-Warm-based - Aletsch Glacier in Switzerland
An example if a glacial surge?
-Mudrow Glacier in Alaska, 2021 - up to 100x faster
An example of frost shattering?
-Summit of Glyder Fawr, Snowdonia Unit
An example of a sub-glacial meltwater channel?
-Gwaun Valley in North Pembrokeshire in S.Wales
An example of a subglacial stream?
-The Greenland ice sheet - 466-mile-long canyon
An example of a cirque?
-Cwm, Cau in Snowdonia, Wales
An example of an arete?
-Bristly Ridge in Snowdonia, Wales
An example of a pyramidal peak?
-Matterhorn, Switzerland
An example of a glacial trough, truncated spurs and hanging valley?
-Yosemite Valley, California
An example of a ribbon lake?
-Bassenthwaite Lake, Lake District
An example of a roche mountonee?
-Cairngorms Mountains in Scotland
An example of a crag and tail?
-Edinburgh Castle sits on a 130 metre high volcanic crag of a crag and tail
An example of lodgement till?
-Found in glaciated landscapes such as Cwm Idwal
An example of ablation till?
-Deposited at the snout of Solheimjokull, Iceland
An example of deformation till?
-This is located on the Norfolk coast from the Devensian Glaciation
An example of a till plain?
-In East Anglia - large, flat expanse of our country which has been deposited by an ice sheet
An example of a drumlin?
-A swarm of drumlins can be found in Swinedale, Cumbria
An example of terminal and lateral moraine?
-Bylot Island Glacier, Canada
An example of an esker?
-Munro Esker near Munro Lake in northern Ontario, it is 250 km long and almost 5 km wide in places
An example of kames and kame terraces?
-The east Lothian area of Scotland, they are typically up to 20 m high and 200 m in length
An example of kettles holes and kettle hole lakes?
-The Meres of North Shropshire which are over 300 m across
An example of a sandur (outwash plain)?
-Skeidararsandur, Iceland covering 1300 km sq - the largest sandur in the world
