Caves in the Ross Ice Shelf,Antarctica. An ice shelf is an extensive sheet of floating ice,on the margin of & attached to a coastline. The Ross Ice Shelf covers approximately 256,000 square kilometres (160,000 square miles) of sea. Over geological time-scales,caves on the edge of an ice shelf collapse & the broken mass floats free as an iceberg. Icebergs formed in this way,as opposed to those formed at the end of a glacier,are usually rectangular in shape with a plateau or tabular top | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Allan, Doug |
Bildgröße: | 3899 px × 2516 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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