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PhotosHalite - Sifto Salt Mine, Unity, Saskatchewan, Canada
14th Feb 2011 19:11 UTCDavid Bernstein Expert
This is a beautiful photo but the text really caught my eye. I read it to state that the mine was 17,750 feet deep. That seemed a tad deep for a salt mine and I began to wonder how a human being could even go underground to that depth. In looking up the mine, I found that the mine is 1,800 feet deep which makes more sense. Perhaps this should be corrected?
http://siftocanada.com/about-us/how-we-produce/mining.html
15th Feb 2011 00:29 UTCReiner Mielke Expert
15th Feb 2011 02:24 UTCAndrew Johns
17th Feb 2011 07:59 UTCOT. Ljøstad Expert
I got the mine information from Sifto Canada Corp. See the enclosed photo.
I think that the depth of the mine is correct since this information comes from the owner of the mine .
17th Feb 2011 08:13 UTCClosed Account 🌟
Now let us have a quick reality check:
The geothermal gradient is about 25-30K/km. At a depth of 17.750 foot, which is about 5.5km, the ambient temperature would be about 140°C (about 280 F). It is hard to believe that anybody would be able to work under these conditions, or that the cooling of the mine to temperatures that support human activity (under lawful conditions) would be feasible from a purely financial point of view.
Branko
17th Feb 2011 08:27 UTCOT. Ljøstad Expert
17th Feb 2011 12:51 UTCPaul Brandes 🌟 Manager
I can safely say Goderich is nowhere near 17,750 ft. deep!! I believe the depth when I was there in 2001 was about 1,700 ft deep on the vertical, but I could see where the total length of the levels and passageways could be 17,000 ft. or about 5.2 km. Wikipedia also claims that the mine extends 5 km under Lake Huron.
FYI: Sifto Canada also owns and operates a mechanical evaporation plant in Unity, Saskatchewan, so I guess halite could be possible from Unity as well.
17th Feb 2011 13:04 UTCClosed Account 🌟
thanks for pointing this out. As you can see on the little flag in my post I come from Austria and my native tongue is German. My translation of “depth” was meant to be straight down, but maybe that is not what it really is.
Cheers,
Branko
17th Feb 2011 14:10 UTCGord Howe
Gord
17th Feb 2011 16:33 UTCDavid Von Bargen Manager
I believe they are still only using solution mining to produce salt.
17th Feb 2011 17:33 UTCJolyon Ralph Founder
17th Feb 2011 23:58 UTCBob Southern
Working depth is like 7840 vertical feet. The Creighton #9 Shaft has a vertical
depth of 7137 feet. You can be guaranteed that the Sifto Salt Mine in Goderich
Ontario is not 17,750 feet vertical !
18th Feb 2011 00:07 UTCReiner Mielke Expert
18th Feb 2011 01:45 UTCJolyon Ralph Founder
18th Feb 2011 04:15 UTCStephanie Martin
http://www.mindat.org/photo-34682.html
thanks,
stephanie
18th Feb 2011 11:04 UTCOT. Ljøstad Expert
Sifto has two mines in Saskatchewan, so this locality must not be deleted. Se the attached photo of a map issued by the Salt Institute. I have also included a part of the map showing salt mines in the Michigan area.
On the letter head of the letter I got from Compass Minerals, the owner of the Sifto Canada Corp. salt mines, they call the mine where my Lake Huron specimen comes from the Goderich Mine. So I think that the correct name of the mine owned by Sifto near Lake Huron should be the Goderich mine and not Sifto Salt Mine.
28th Mar 2011 23:20 UTCRoconn
29th Apr 2011 14:51 UTCMike R
29th Apr 2011 23:13 UTCRock Currier Expert
19th Apr 2016 20:33 UTCAl
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