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Slika:Upsala Glacier, Argentina.jpg

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Povzetek

Opis
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.
Datum Fotografirano: 25. oktobra 2009
Vir NASA Earth Observatory
Avtor

This image was taken by the NASA Expedition 21 crew

  • Image acquired with a Nikon D2Xs digital camera fitted with a 400 mm lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Centre.
Lokacija fotoaparata49° 54′ 00″ J, 73° 18′ 00″ Z  Heading=292.5° Kartographer map based on OpenStreetMap.Ta in druge slike po lokaciji: OpenStreetMapinfo

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Licenca

Public domain
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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motiv

nastanek

25. oktober 2009

koordinate stojišča

49°54'0.000"S, 73°18'0.000"W

heading angleščina: 292,5 stopinja

čas ekspozicije

0,0005 sekunda

goriščna razdalja

400 milimeter

tip MIME

image/jpeg

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Datum in časSličicaVelikostUporabnikKomentar
trenutno19:13, 3. februar 2017Sličica za različico z datumom 19:13, 3. februar 20174.288 × 2.848 (4,91 MB)Ras67new rendered in high quality from NASA's raw image data (with 5500 K)
11:32, 9. junij 2010Sličica za različico z datumom 11:32, 9. junij 20103.072 × 2.032 (5,45 MB)Originalwanahigher res
13:01, 17. november 2009Sličica za različico z datumom 13:01, 17. november 20091.440 × 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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