Borup Fiord Pass
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Signs_of_Life_-_Sulfur_Deposits_at_Borup_Fiord_Pass%2C_Canadian_Arctic.jpg/220px-Signs_of_Life_-_Sulfur_Deposits_at_Borup_Fiord_Pass%2C_Canadian_Arctic.jpg)
![Borup Fiord Pass is located in Nunavut](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Canada_Nunavut_location_map-lambert_proj3.svg/300px-Canada_Nunavut_location_map-lambert_proj3.svg.png)
![Borup Fiord Pass](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/8px-Red_pog.svg.png)
Borup Fiord Pass is a glacier-carved valley on Ellesmere Island in Nunavut, Canada. The valley contains a natural spring which carries fluids from the subsurface to the surface, sometimes passing through the glacial ice in the process. The spring is the only known place where sulfur from a natural spring is deposited over ice.[1] At the Borup Fiord Pass spring, hydrogen sulphide gas in the water is converted to stable deposits of either elemental sulfur, the most common material in the deposit, or gypsum.[1] The process by which hydrogen sulfide becomes sulfur is complex, and most often occurs when microbes, like bacteria, are present.[1]
To the south the pass leads into Esayoo Bay, part of the Borup Fiord.
References
- ^ a b c "Signs of Life: Sulfur Deposits at Borup Fiord Pass, Canadian Arctic". NASA.
81°00′N 081°40′W / 81.000°N 81.667°W / 81.000; -81.667 (Borup Fiord Pass)
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