Glacier
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Basic Information

Glaciers are large masses of persistent ice (surviving over a time scale of many years). Glaciers are primarily found in the Antarctic, Greenland, certain other parts of the high Arctic, and high mountains.

Glaciers flow, rather like rivers or lava flows, though much slower - a 'fast' glacier may move a couple of meters per day (though the Jakobshavn Glacier in Greenland moves up to 20 meters a day). Fast-moving glaciers can even produce 'glacial earthquakes', and the frequency of these quakes appears to be increasing — possibly due to climate change?

Glaciers can be extremely slippery, so they're definitely hazardous terrain. In game terms, expect a movement penalty, and a chance for falling or sliding. An unfortunately timed/placed slide can take you right off the edge of a glacial cliff, possibly resulting in somewhat more falling damage than normal for the height of the cliff because of momentum gained during the mostly-vertical slide just before the fall.1 Many glaciers are also riddled with cracks and crevices which can become hidden under a crust of snow - like the glacial cliff edges, these can prove to be deadly traps for the unwary … with the added bonus that they can open and close in real time, potentially trapping and crushing someone before they can be rescued.

Sources

Bibliography
1. http://en.wikipedia.org/wiki/Glacier Wikipedia article on glaciers
2. http://en.wikipedia.org/wiki/Glacial_earthquake Wikipedia article on glacial earthquakes

Game and Story Use

  • Glacial earthquakes and other oddities of glaciers might become important in a campaign set on an ice planet or during an ice age.
  • Out Of Place Artifacts from the distant past might be found preserved in a glacier.
      • In a pulpier / softer science / more fantastic game, prehistoric animals or monsters might be unfrozen from glaciers.
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