The gravity field of northern Saskatchewan and northeastern Alberta

10.4095/8748 ◽  
1968 ◽  
Author(s):  
R I Walcott
Keyword(s):  
Gravity Field ◽  
Northern Saskatchewan ◽  
Northeastern Alberta

Nd evidence for extensive Archean basement in the western Churchill Province, Canada

1986 ◽  
Vol 23 (9) ◽  
pp. 1433-1437 ◽  
Author(s):  
C. D. Frost ◽  
R. A. Burwash
Keyword(s):  
Drill Hole ◽  
Crust Formation ◽  
Southern Alberta ◽  
Northern Saskatchewan ◽  
Archean Crust ◽  
Northeastern Alberta ◽  
Archean Basement

To determine the extent of reworked Archean crust in the western Churchill Province, we have examined Sm–Nd crustal residence ages of basement cores in southern Alberta and southwestern Saskatchewan along with crustal residence ages calculated for other Sm–Nd data available from the Churchill Province. The deep drill hole samples from the Interior Platform give Sm–Nd crustal residence ages that average 2.8 Ga. Granulites from northeastern Alberta and composite gneisses from northern Saskatchewan also provide Archean crustal residence ages. These data demonstrate that the presence of reworked Archean crust in the western Churchill Province is more widespread than has been confirmed previously. We suggest that Sm–Nd crustal residence ages are valuable estimates of crust formation times, especially in orogenic areas where other isotope systems have been disturbed.

Concept of a visualization method for earth�s gravity field on plain maps

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
M.A. Boyarchuk ◽  
I.G. Zhurkin ◽  
V.B. Nepoklonov
Keyword(s):  
Gravity Field ◽  
Visualization Method

The Impact of Effluents from a Uranium Mine and Mill Complex in Northern Saskatchewan on Contaminant Concentrations in Receiving Waters and Sediments

1987 ◽  
Vol 22 (4) ◽  
pp. 559-569 ◽  
Author(s):  
Thomas P. Hynes ◽  
Randy M. Schmidt ◽  
Tim Meadley ◽  
Neill A. Thompson
Keyword(s):  
Major Ions ◽  
Mining Operation ◽  
Uranium Mining ◽  
Uranium Mine ◽  
Northern Saskatchewan ◽  
Receiving Waters ◽  
The Impact

Abstract Data are provided on the release of 5 radionuclides, 17 metals and 7 major ions from a uranium mining operation in northern Saskatchewan. The downstream concentration of these contaminants is documented, and the point of “no discernible impact” is determined. Sediments in a downstream lake are monitored for uranium and molybdenum, and the post-release fate of these metals is discussed.

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