Geology

An apocalyptic cloud above Sydney, Australia
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An apocalyptic cloud above Sydney, Australia


 



Fluorite on dolomite (Elmwood Mine, Tennessee)
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Fluorite on dolomite (Elmwood Mine, Tennessee)


 



On 18% of Earth's land, water can't be drained into an ocean
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On 18% of Earth’s land, water can’t be drained into an ocean


It flows inland instead, into a dead-end lake called an endorheic - or terminal - basin. The water can only leave the basin by evaporation or seepage.

 



Frost flowers on sea ice during polar winters
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Frost flowers on sea ice during polar winters


 



On Earth, less than 3% of all water is fresh water
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On Earth, less than 3% of all water is fresh water


2/3 of which is locked in ice caps and glaciers

 



These two spheres represent the total amount of water and air
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These two spheres represent the total amount of water and air


available on earth (at a normal atmospheric pressure).

 



This is a "snow donut"
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This is a “snow donut”


A rare phenomenon which occurs only under specific temperature and wind conditions

 



Fordite, also known as Detroit agate
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Fordite, also known as Detroit agate


It is not really a mineral. It is made of old layers of automobile paint. In recent times the material has been recycled as eco-friendly jewelry.

 



A crack in the frozen Baïkal lake
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A crack in the frozen Baïkal lake


 



A lightning storm taking place in a volcanic eruption
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Lightning in a volcanic eruption