nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
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nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
Zoom Info
nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
Zoom Info
nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
Zoom Info
nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
Zoom Info
nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
Zoom Info
nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
Zoom Info
nubbsgalore: “ striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf,...
Zoom Info

nubbsgalore:

striped icebergs form as meltwater refreezes in crevasses atop glaciers before air bubbles can become trapped in the ice, which is later calved into icebergs, or when supercooled seawater freezes inside cracks beneath an ice shelf, which then becomes visible when the iceberg breaks off and flips.

over time, the weight of accumulated snow contorts and curves these blue bands of ice, as does erosion from waves and wind. dust and volcanic ash falling on the iceberg can darken the ice, while dissolved organic compounds entering from below can shade it towards cyan.

accumulated snow also compresses air bubbles trapped in the iceberg, thus preventing them from otherwise interfering with the passage of light. and because water absorbs photons from the red end of the visible spectrum much better than the blue end, bubble free ice takes on a blue colour.

(click pic or link for credit x, x, x, x, x, x, x, x)

(via moreanimalia)

Source: nubbsgalore

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