Dosiero:Upsala Glacier, Argentina.jpg
Bildo en pli alta difino ((4 288 × 2 848 rastrumeroj, grandeco de dosiero: 4,91 MB, MIME-tipo: image/jpeg))
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Jen dosiero de la Wikimedia-Komunejo. La priskribo en ties priskriba paĝo estas montrata suben.
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Resumo
| Priskribo |
English: The Southern Patagonian Icefield of Argentina and Chile is the southern remnant of the Patagonia Ice Sheet that covered the southern Andes Mountains during the last ice age. This detailed astronaut photograph illustrates the terminus of one of the ice-field’s many spectacular glaciers—Upsala Glacier, located on the eastern side of the ice-field.
This image was taken during spring in the Southern Hemisphere, and icebergs were calving from the glacier terminus into the waters of Lago Argentino (Lake Argentina, image right). Two icebergs are especially interesting because they retain fragments of the moraine (rock debris) that forms a dark line along the upper surface of the glacier. The inclusion of the moraine illustrates how land-based rocks and sediment may wind up in ocean sediments far from shore. Moraines are formed from rock and soil debris that accumulate along the front and sides of a flowing glacier. The glacier is like a bulldozer that pushes soil and rock in front of it, leaving debris on either side. When two glaciers merge (image centre), moraines along their edges can join to form a medial moraine that is drawn out along the upper surface of the new glacier. |
| Dato | Fotita je la 25-a de oktobro 2009 |
| Fonto | NASA Earth Observatory |
| Aŭtoro |
This image was taken by the NASA Expedition 21 crew
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| Pozicio de la fotilo |   | Tiu cxi bildo kaj pliaj sur OpenStreetMap |  |
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This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS021-E-15243. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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Permesiloj:
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This file is in the public domain in the United States because it was created by the Image Science & Analysis Laboratory, of the NASA Johnson Space Center. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA media use guidelines or Conditions of Use of Astronaut Photographs).
Photo source: ISS021-E-15243.
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| Annotations | This image is annotated: View the annotations at Commons |
Dosierhistorio
Alklaku iun daton kaj horon por vidi kiel la dosiero tiam aspektis.
| Dato/Horo | Bildeto | Grandecoj | Uzanto | Komento | |
|---|---|---|---|---|---|
| nun | 17:13, 3 feb. 2017 | | 4 288 × 2 848 (4,91 MB) | Ras67 | new rendered in high quality from NASA's raw image data (with 5500 K) |
| 09:32, 9 jun. 2010 |  | 3 072 × 2 032 (5,45 MB) | Originalwana | higher res | |
| 11:01, 17 nov. 2009 |  | 1 440 × 960 (942 KB) | Originalwana | {{Information |Description={{en|1=The Southern Patagonian Icefield of Argentina and Chile is the southern remnant of the Patagonia Ice Sheet that covered the southern Andes Mountains during the last ice age. This detailed |
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