Brief communication: Collapse of 4 Mm 3 of ice from a cirque glacier in the Central Andes of Argentina
Among glacier instabilities, collapses of large parts of low-angle glaciers are a striking, exceptional phenomenon. So far, merely the 2002 collapse of Kolka Glacier in the Caucasus Mountains and the 2016 twin detachments of the Aru glaciers in western Tibet have been well documented. Here we report...
| Published in: | The Cryosphere |
|---|---|
| Main Authors: | , , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Copernicus Publications
2019
|
| Subjects: | |
| Online Access: | https://doi.org/10.5194/tc-13-997-2019 https://doaj.org/article/1b75147cdb69455d804504c4650bcda7 |
| Summary: | Among glacier instabilities, collapses of large parts of low-angle glaciers are a striking, exceptional phenomenon. So far, merely the 2002 collapse of Kolka Glacier in the Caucasus Mountains and the 2016 twin detachments of the Aru glaciers in western Tibet have been well documented. Here we report on the previously unnoticed collapse of an unnamed cirque glacier in the Central Andes of Argentina in March 2007. Although of much smaller ice volume, this <math xmlns="http://www.w3.org/1998/Math/MathML" id="M3" display="inline" overflow="scroll" dspmath="mathml"><mrow><mn mathvariant="normal">4.2</mn><mo>±</mo><mn mathvariant="normal">0.6</mn><mo>×</mo><msup><mn mathvariant="normal">10</mn><mn mathvariant="normal">6</mn></msup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="72pt" height="14pt" class="svg-formula" dspmath="mathimg" md5hash="1c19d3aeed652385e807259f4232b990"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-13-997-2019-ie00001.svg" width="72pt" height="14pt" src="tc-13-997-2019-ie00001.png"/></svg:svg> m 3 collapse in the Andes is similar to the Caucasus and Tibet ones in that the resulting ice avalanche travelled a total distance of ∼2 km over a surprisingly low angle of reach ( ∼5 ∘ ). |
|---|