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Coordinates: 59°55′41″N 107°49′12″W / 59.928°N 107.820°W / 59.928; -107.820
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{{Short description|Lake in Saskatchewan, Canada}}
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{{Infobox lake
{{Use Canadian English|date=October 2023}}
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| lake_name = Hoidas Lake
{{Use dmy dates|date=October 2023}}
| image_lake =

| caption_lake =
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{{Infobox body of water
| image_bathymetry =
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| name = Hoidas Lake
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| location = [[Saskatchewan]]
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| location = [[Northern Saskatchewan Administration District]]
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| pushpin_map_caption = Location in Saskatchewan
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'''Hoidas Lake''' is a remote northern [[Canada|Canadian]] lake which lies approximately 50 kilometers north of [[Uranium City, Saskatchewan]]. Named in honor of Irvin Frank Hoidas, a [[Royal Canadian Air Force]] pilot officer killed in action during the [[Second World War]] when his [[Short Stirling|Stirling]] W-7520 crashed near the Belgian town of Saint-Truiden,<ref>http://wwii.ca/memorial/world-war-ii/116809/pilot-officer-irvin-frank-hoidas/</ref><ref>[http://www.gwmg.ca/media/photos/hoidas-lake/irvin_hoidas_high_quality.jpg/view Irvin Frank Hoidas]</ref><ref>http://www.inmemories.com/Cemeteries/heverlee.htm</ref> it is the site of Canada's most advanced [[rare earth element]] (REE) [[mining]] project.<ref name="gwmg">[http://www.gwmg.ca/projects/hoidas-lake Hoidas Lake, Saskatchewan]</ref>


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'''Hoidas Lake''' is a remote northern lake in the [[Provinces and territories of Canada|Canadian province]] of [[Saskatchewan]].<ref>{{cite web |url=http://www4.rncan.gc.ca/search-place-names/unique/HAFOF |title=Hoidas Lake |date=6 October 2016 |website=Canadian Geographical Names Database |publisher=Natural Resources Canada |access-date=20 January 2019}}</ref> It is about {{convert|50|km}} north of [[Uranium City]]. Named in honor of Irvin Frank Hoidas, a [[Royal Canadian Air Force]] pilot officer killed in action during the [[Second World War]] when his [[Short Stirling|Stirling]] W-7520 crashed near the Belgian town of [[Sint-Truiden]],<ref>{{Cite web | url=http://wwii.ca/memorial/world-war-ii/116809/pilot-officer-irvin-frank-hoidas/ |title = This website is currently unavailable}}</ref><ref>{{Cite web |url=http://www.gwmg.ca/media/photos/hoidas-lake/irvin_hoidas_high_quality.jpg/view |title=Irvin Frank Hoidas |access-date=2008-03-30 |archive-url=https://web.archive.org/web/20091127191231/http://www.gwmg.ca/media/photos/hoidas-lake/irvin_hoidas_high_quality.jpg/view |archive-date=2009-11-27 |url-status=dead }}</ref><ref>{{Cite web | url=http://www.inmemories.com/Cemeteries/heverlee.htm |title = Heverlee}}</ref> it is the site of Canada's most advanced [[rare-earth element]] (REE) [[mining]] project.<ref name="gwmg">[http://www.gwmg.ca/projects/hoidas-lake Hoidas Lake, Saskatchewan] {{webarchive|url=https://web.archive.org/web/20080701015402/http://www.gwmg.ca/projects/hoidas-lake |date=2008-07-01 }}</ref>
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==Setting==


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== Setting ==
Hoidas Lake lies in the [[Rae craton|Northern Rae Geological Province]], in the general vicinity of many of [[Saskatchewan]]'s large [[uranium mines]].<ref name="gwmg"/>
Hoidas Lake lies in the [[Rae craton|Northern Rae Geological Province]], in the general vicinity of many of [[Saskatchewan]]'s large [[uranium mines]].<ref name="gwmg"/>


==Mineralogy==
== Mineralogy ==
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The [[mineralogy]] of the Hoidas Lake rare-earth deposit differs from most other such deposits in that it is hosted in [[veins]] of [[apatite]] and [[allanite]].<ref>Salvi S, Williams‐Jones A. 2004. Alkaline granite‐syenite deposits. In Linnen RL, Samson IM, editors. Rare element geochemistry and mineral deposits. St. Catharines (ON): Geological Association of Canada. pp. 315–341</ref> Hoidas Lake also differs from other deposits in that it contains a significant amount of heavy rare-earth elements, such as [[dysprosium]].<ref name="gwmg"/> This abundance of heavy REEs is significant, as there is a growing demand for the heavier rare earths in high-tech manufacturing (such as the use of dysprosium in the manufacturing of [[hybrid car]] components).<ref>{{Cite news |date=2007-11-08 |title=INTERVIEW-Japan urges China to ease rare metals supply |language=en |work=Reuters |url=https://www.reuters.com/article/idUSL08815827 |access-date=2023-05-09}}</ref><ref>{{Cite web |title=The Anchor House, Inc. – Research on Rare Earth Elements |url=https://www.theanchorhouse.com/ |access-date=2023-05-09 |language=en-US}}</ref> Mineralization is presumably [[hydrothermal]], from an alkali or [[Carbonatite|carbonatitic]] source at depth.<ref name="library2.usask.ca">{{Cite web |last=Halpin |first=Kimberley Michelle |url=https://harvest.usask.ca/handle/10388/etd-01292010-141709 | title=The characteristics and origin of the Hoidas Lake REE Deposit |date=January 2010 |access-date=2 June 2020}}</ref>


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The main prospective zone is composed of two dominant rock types: a variably deformed [[monzogranite]] and a [[Granodiorite|granodioritic]] to [[Tonalite|tonalitic]] [[gneiss]]. Both are [[Paleoproterozoic]] to [[Archean]] in age.<ref>Geology of the LeBlanc-Wellington lakes area, eastern Zemlak Domain, Rae Province; in Summary of Investigations 2003, v. 2,Saskatchewan Geological Survey, Sask. Industry and Resources, Misc. Rep. 2003-4.2. Available through: http://www.er.gov.sk.ca/adx/aspx/adxGetMedia.aspx?DocID=11840,11458,11455,11228,3385,5460,2936,Documents&MediaID=36607&Filename=Ashton03_SOIMAP_West.pdf</ref>
⚫
The [[mineralogy]] of the Hoidas Lake rare earth deposit differs from most other such deposits in that it is hosted in [[veins]] of [[apatite]] and [[allanite]].<ref>Salvi S, Williams‐Jones A. 2004. Alkaline granite‐syenite deposits. In Linnen RL, Samson IM, editors. Rare element geochemistry and mineral deposits. St. Catharines (ON): Geological Association of Canada. pp. 315‐341</ref> The deposit also contains a number of heavy REEs, such as [[dysprosium]].<ref name="gwmg"/> This is important, as dysprosium is used in the manufacture of [[hybrid car]] components<ref>G, Nishiyama. "Japan urges China to ease rare metals supply." 8 November 2007. Reuters Latest News. 10 March 2008 <http://www.reuters.com/article/latestCrisis/idUSL08815827></ref> and some are suggesting an impending shortage of the [[metal]].<ref>Cox C. 2008. Rare earth innovation. [Internet]. Herndon (VA): The Anchor House Inc; [updated 2008 Feb 16; cited 2008 Mar 18]. Available from http://theanchorhouse.com</ref> Mineralization is presumably [[hydrothermal]], from an alkali or [[Carbonatite|carbonatitic]] source at depth.<ref name="library2.usask.ca">http://library2.usask.ca/theses/available/etd-01292010-141709/unrestricted/Halpin_K.pdf</ref>


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== Resource scale ==
⚫
The main prospective zone is composed of two dominant rock types; a variably deformed [[monzogranite]] and second, a [[Granodiorite|granodioritic]] to [[Tonalite|tonalitic]] [[gneiss]]. Both are [[Paleoproterozoic]] to [[Archean]] in age.<ref> Geology of the LeBlanc-Wellington lakes area, eastern Zemlak Domain, Rae Province; in Summary of Investigations 2003, v. 2,Saskatchewan Geological Survey, Sask. Industry and Resources, Misc. Rep. 2003-4.2. Available through: http://www.er.gov.sk.ca/adx/aspx/adxGetMedia.aspx?DocID=11840,11458,11455,11228,3385,5460,2936,Documents&MediaID=36607&Filename=Ashton03_SOIMAP_West.pdf </ref>
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Ongoing work at Hoidas Lake has delineated a [[Vein (geology)|vein]] system (known as the JAK zone), which extends for at least a kilometer along the [[Strike and dip|strike]].<ref name="library2.usask.ca"/> The limits of the system have not been established along the strike nor along the dip,<ref name="library2.usask.ca"/> and the zone's total extension is therefore unknown. The resource zone averages 75&nbsp;m in width<ref>Pearson, J., (2006): Great Western Minerals Group Ltd. Assessment Report on the 2005-2006 Work Program, Hoidas Lake Rare Earth Project. Submitted to Saskatchewan Industry and Resources. Cited (at page six) in: http://library2.usask.ca/theses/available/etd-01292010-141709/unrestricted/Halpin_K.pdf</ref> and is composed of individual veins which, though ranging from one to eleven meters in thickness, average about three meters each.<ref name="library2.usask.ca"/> Veins are continuous to 300&nbsp;m depth and follow an [[Anastomosis|anastomosing]] (branching) geometry.<ref name="library2.usask.ca"/>


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Estimates of the resource, given current delineations and assuming a 1.5% total rare-earth cutoff, have established a presence of at least 286,000 tonnes of rare-earth ore,<ref>{{Cite web |url=http://www.gwmg.ca/html/projects/hoidas-lake/index.cfm |title=Great Western Minerals Group LTD. Hoidas Lake, Saskatchewan |access-date=2010-10-13 |archive-url=https://web.archive.org/web/20101124213115/http://www.gwmg.ca/html/projects/hoidas-lake/index.cfm |archive-date=2010-11-24 |url-status=dead }}</ref> which is enough to supply more than 10% of the North American market for the foreseeable future.
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==Resource scale==


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== Ownership ==
⚫
Ongoing work at Hoidas Lake has delineated a [[Vein (geology)|vein]] system (known as the JAK zone), which extends for at least a kilometer along [[Strike and dip|strike]].<ref name="library2.usask.ca"/> The limits of the system have not been established along strike nor along dip,<ref name="library2.usask.ca"/> and the zone's total extension is therefore unknown. The resource zone averages 75&nbsp;m in width<ref> Pearson, J., (2006): Great Western Minerals Group Ltd. Assessment Report on the 2005-2006 Work Program, Hoidas Lake Rare Earth Project. Submitted to Saskatchewan Industry and Resources. Cited (at page six) in: http://library2.usask.ca/theses/available/etd-01292010-141709/unrestricted/Halpin_K.pdf </ref> and is composed of indvidual veins which, though ranging from one to eleven meters in thickness, average about three meters each.<ref name="library2.usask.ca"/> Veins are continuous to 300&nbsp;m depth and follow an anastomosing geometry.<ref name="library2.usask.ca"/>
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The Hoidas Lake claims are owned by Great Western Minerals Group, based in [[Saskatoon]].<ref name="gwmg"/>


== See also ==
⚫
Estimates of the resource given current delineations and assuming a 1.5% total rare earth cutoff, have established a presence of at least 286,000 tonnes of rare earth ore,<ref>http://www.gwmg.ca/html/projects/hoidas-lake/index.cfm</ref> which is enough to supply more than 10% of the North American market for the foreseeable future.
* [[List of lakes of Saskatchewan]]

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==Ownership==

⚫
The Hoidas Lake claims are owned by Great Western Minerals Group, based in [[Saskatoon]].<ref name="gwmg"/>


== References ==
== References ==
{{reflist}}
{{Reflist}}


== External links ==
== External links ==
* [http://pubs.usgs.gov/fs/2002/fs087-02/fs087-02.pdf United States Geologic Survey report on Rare Earths]
* [http://pubs.usgs.gov/fs/2002/fs087-02/fs087-02.pdf United States Geological Survey report on Rare Earths]
* [http://www.gwmg.ca Great Western Minerals Group]
* [http://www.gwmg.ca Great Western Minerals Group]

{{Canada topic|List of lakes of}}
{{Authority control}}


[[Category:Lakes of Saskatchewan]]
[[Category:Lakes of Saskatchewan]]
[[Category:Mining in Saskatchewan]]
[[Category:Mining in Saskatchewan]]


{{mining-stub}}

Latest revision as of 23:51, 21 April 2024

Hoidas Lake
Hoidas Lake is located in Saskatchewan
Hoidas Lake
Hoidas Lake
Location in Saskatchewan
Hoidas Lake is located in Canada
Hoidas Lake
Hoidas Lake
Hoidas Lake (Canada)
StandortNorthern Saskatchewan Administration District
Coordinates59°55′41″N 107°49′12″W / 59.928°N 107.820°W / 59.928; -107.820
Basin countriesKanada

Hoidas Lake is a remote northern lake in the Canadian province of Saskatchewan.[1] It is about 50 kilometres (31 mi) north of Uranium City. Named in honor of Irvin Frank Hoidas, a Royal Canadian Air Force pilot officer killed in action during the Second World War when his Stirling W-7520 crashed near the Belgian town of Sint-Truiden,[2][3][4] it is the site of Canada's most advanced rare-earth element (REE) mining project.[5]

Setting

[edit]

Hoidas Lake lies in the Northern Rae Geological Province, in the general vicinity of many of Saskatchewan's large uranium mines.[5]

Mineralogy

[edit]

The mineralogy of the Hoidas Lake rare-earth deposit differs from most other such deposits in that it is hosted in veins of apatite and allanite.[6] Hoidas Lake also differs from other deposits in that it contains a significant amount of heavy rare-earth elements, such as dysprosium.[5] This abundance of heavy REEs is significant, as there is a growing demand for the heavier rare earths in high-tech manufacturing (such as the use of dysprosium in the manufacturing of hybrid car components).[7][8] Mineralization is presumably hydrothermal, from an alkali or carbonatitic source at depth.[9]

The main prospective zone is composed of two dominant rock types: a variably deformed monzogranite and a granodioritic to tonalitic gneiss. Both are Paleoproterozoic to Archean in age.[10]

Resource scale

[edit]

Ongoing work at Hoidas Lake has delineated a vein system (known as the JAK zone), which extends for at least a kilometer along the strike.[9] The limits of the system have not been established along the strike nor along the dip,[9] and the zone's total extension is therefore unknown. The resource zone averages 75 m in width[11] and is composed of individual veins which, though ranging from one to eleven meters in thickness, average about three meters each.[9] Veins are continuous to 300 m depth and follow an anastomosing (branching) geometry.[9]

Estimates of the resource, given current delineations and assuming a 1.5% total rare-earth cutoff, have established a presence of at least 286,000 tonnes of rare-earth ore,[12] which is enough to supply more than 10% of the North American market for the foreseeable future.

Ownership

[edit]

The Hoidas Lake claims are owned by Great Western Minerals Group, based in Saskatoon.[5]

See also

[edit]

References

[edit]
  1. ^ "Hoidas Lake". Canadian Geographical Names Database. Natural Resources Canada. 6 October 2016. Retrieved 20 January 2019.
  2. ^ "This website is currently unavailable".
  3. ^ "Irvin Frank Hoidas". Archived from the original on 27 November 2009. Retrieved 30 March 2008.
  4. ^ "Heverlee".
  5. ^ a b c d Hoidas Lake, Saskatchewan Archived 2008-07-01 at the Wayback Machine
  6. ^ Salvi S, Williams‐Jones A. 2004. Alkaline granite‐syenite deposits. In Linnen RL, Samson IM, editors. Rare element geochemistry and mineral deposits. St. Catharines (ON): Geological Association of Canada. pp. 315–341
  7. ^ "INTERVIEW-Japan urges China to ease rare metals supply". Reuters. 8 November 2007. Retrieved 9 May 2023.
  8. ^ "The Anchor House, Inc. – Research on Rare Earth Elements". Retrieved 9 May 2023.
  9. ^ a b c d e Halpin, Kimberley Michelle (January 2010). "The characteristics and origin of the Hoidas Lake REE Deposit". Retrieved 2 June 2020.
  10. ^ Geology of the LeBlanc-Wellington lakes area, eastern Zemlak Domain, Rae Province; in Summary of Investigations 2003, v. 2,Saskatchewan Geological Survey, Sask. Industry and Resources, Misc. Rep. 2003-4.2. Available through: http://www.er.gov.sk.ca/adx/aspx/adxGetMedia.aspx?DocID=11840,11458,11455,11228,3385,5460,2936,Documents&MediaID=36607&Filename=Ashton03_SOIMAP_West.pdf
  11. ^ Pearson, J., (2006): Great Western Minerals Group Ltd. Assessment Report on the 2005-2006 Work Program, Hoidas Lake Rare Earth Project. Submitted to Saskatchewan Industry and Resources. Cited (at page six) in: http://library2.usask.ca/theses/available/etd-01292010-141709/unrestricted/Halpin_K.pdf
  12. ^ "Great Western Minerals Group LTD. Hoidas Lake, Saskatchewan". Archived from the original on 24 November 2010. Retrieved 13 October 2010.
[edit]
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