Ice formations in the
Titlis glacier cave
A glacier cave is a cave formed within the ice of a glacier. Glacier caves are often called ice caves, but this term is properly used to describe bedrock caves that contain year-round ice.
Overview
Most glacier caves are started by water running through or under the glacier. This water often originates on the glacier’s surface through melting, entering the ice at a moulin and exiting at the glacier’s snout at base level. Heat transfer from the water can cause sufficient melting to create an air-filled cavity, sometimes aided by solifluction. Air movement can then assist enlargement through melting in summer and sublimation in winter.
Some glacier caves are formed by geothermal heat from volcanic vents or hotsprings beneath the ice. An extreme example is the Kverkfjöll glacier cave in the Vatnajökull glacier in Iceland, measured in the 1980s at 2.8 kilometers long with a vertical range of 525 meters.
Some glacier caves are relatively unstable due to melting and glacial motion, and are subject to localized or complete collapse, as well as elimination by glacial retreat. An example of the dynamic nature of glacier caves may be seen in the Paradise Ice Caves located on Mt. Rainier in the United States. Known since the early 1900s, the caves were thought to have disappeared altogether in the mid-1940s, yet in 1978 cavers measured 13.25 km of passageways in glacier caves there, and it was considered the longest glacier cave system in the world. The Paradise Ice Caves collapsed and vanished in the 1990s, and the lower lobe of the glacier which once contained the caves also vanished entirely between 2004 and 2006.
Glacier caves may be used by glaciologists to study the interior of glaciers. The study of glacier caves themselves is sometimes called glaciospeleology.
References
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Cave topics and lists by country |
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Types and
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| List (Africa) |
Algeria • Angola • Benin • Botswana • Burkina Faso • Burundi • Cameroon • Cape Verde • Central African Republic • Chad • Chagos • Comoros • Congo • DR Congo • Côte d'Ivoire • Djibouti • Egypt • List of caves in Equatorial Guinea • Eritrea • Ethiopia • Gabon • Gambia • Ghana • Guinea • Guinea-Bissau • Kenya • Lesotho • Liberia • Libya • Madagascar • Malawi • Mali • Mauritania • Mauritius • Mayotte • Morocco • Mozambique • Namibia • Niger • Nigeria • Réunion • Rwanda • Saint Helena • São Tomé and Príncipe • Senegal • Seychelles • Sierra Leone • Somalia • South Africa • Sudan • Swaziland • TAAF • Tanzania • Togo • Tunisia • Uganda • Western Sahara • Zambia • Zimbabwe |
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| List (Americas) |
Anguilla • Antarctica • Netherlands Antilles • Antigua and Barbuda • Aruba • Argentina • Bahamas • Barbados • Belize • Bermuda • Bolivia • Brazil • Canada • Cayman Islands • Chile • Colombia • Costa Rica • Cuba • Dominica • Dominican Republic • Ecuador • El Salvador • Falkland Islands • Greenland • Grenada • Guadeloupe • Guatemala • Guyana • French Guyana • Haiti • Honduras • Jamaica • Martinique • Mexico • Montserrat • Nicaragua • Panama • Paraguay • Peru • Puerto Rico • St. Barthélemy • St. Kitts and Nevis • St. Lucia • St. Martin • St. Pierre and Miquelon • St. Vincent and the Grenadines • Suriname • Trinidad and Tobago • Turks and Caicos Island • United States (AR) • Uruguay • Venezuela • British Virgin Islands • US Virgin Islands |
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| List (Asia) |
Afghanistan • Armenia • Azerbaijan • Bhutan • Brunei • Burma • Cambodia • China • Cyprus • Egypt • Georgia • India • Indonesia • Iran • Iraq • Israel • Japan • Jordan • Kazakhstan • North Korea • South Korea • Kuwait • Kyrgyzstan • Laos • Lebanon • Malaysia • Maldives • Mongola • Nepal • Oman • Pakistan • Palestine • Philippines • Qatar • Russia • Saudi Arabia • Singapore • Sri Lanka • Syria • Taiwan • Tajikistan • Thailand • Eest Timor • Turkey • Turkmenistan • United Arab Emirates • Uzbekistan • Vietnam • Yemen |
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| List (Europe) |
Albania • Andorra • Armenia • Austria • Azerbaijan • Belarus • Belgium • Bosnia and Herzegovina • Bulgaria • Croatia • Cyprus • List of caves in the Czech Republic • Denmark • Estonia • Faroe Islands • Finland • France • Georgia • Germany • Gibraltar • Greece • Hungary • Iceland • Ireland • Italy • Kazakhstan • Kosovo • Latvia • Liechtenstein • Lithuania • Luxembourg • Macedonia • Malta • Moldova • Monaco • Montenegro • Netherlands • Norway • Poland • Portugal • Romania • Russia • San Marino • Serbia • Slovakia • Slovenia • Spain • Sweden • Switzerland • Turkey • Ukraine • United Kingdom (England, Northern Ireland, Scotland, Wales) |
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| List (Oceania) |
Australia (NSW, WA) • Cook Islands • Fiji • Guam • Indonesia • Kiribati • Marshall Islands • Micronesia • Nauru • New Caledonia • New Zealand • Northern Mariana Islands • Palau • Papua New Guinea • French Polynesia • Samoa • American Samoa • Solomon Islands • East Timor • Tuvalu • Vanuatu • Wallis and Futuna
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