Intersting Facts
Sunday, 8 September 2013
Spelunkers rappel 300 feet (91 meters) into the Greenland ice sheet. Glacier caves such as these form when seasonal meltwater or geothermal vents cut fissures and channels through an ice sheet.
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Spelunkers rappel 300 feet (91 meters) into the Greenland ice sheet. Glacier caves such as these form when seasonal meltwater or geothermal vents cut fissures and channels through an ice sheet.
No comments:
Post a Comment