Alkaline Rocks and Carbonatites of the World

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Sweet Grass Hills (Sweetgrass Hills)

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Occurrence number: 
031-00-040
Country: 
Canada
Region: 
Alberta
Location: 
Longitude: -112.23, Latitude: 49.17

Several dykes and small plugs are clearly related to three major intrusions just to the south in the United States. For fuller details, see U.S. No. 97.

Age: 
A K-Ar age on biotite of 48 Ma is quoted by Currie (1976a, p. 172)
References: 
CURRIE, K.L. 1976a. The alkaline rocks of Canada. Bulletin, Geological Survey of Canada, 239: 1-228
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