scholarly journals The Late Great Unconformity of the Central Canadian Shield

2021 ◽  
Author(s):  
C. P. Sturrock ◽  
R. M. Flowers ◽  
F. A. Macdonald
Keyword(s):  
Canadian Shield

Cadmium concentrations of crustacean zooplankton of acidified and nonacidified Canadian Shield lakes

1990 ◽  
Vol 24 (9) ◽  
pp. 1367-1372 ◽  
Author(s):  
Norman D. Yan ◽  
Gerald L. Mackie ◽  
Peter J. Dillon
Keyword(s):  
Canadian Shield ◽  
Crustacean Zooplankton ◽  
Shield Lakes

The Effect of the Canadian Shield on Cloud-to-Ground Lightning Density

2017 ◽  
Vol 55 (3) ◽  
pp. 133-143 ◽  
Author(s):  
Daniel Brown ◽  
Gerhard Reuter
Keyword(s):  
Canadian Shield ◽  
Cloud To Ground Lightning

Flood basalts, dike swarms and sub-crustal flow

1968 ◽  
Vol 5 (1) ◽  
pp. 93-96 ◽  
Author(s):  
Paul M. Clifford
Keyword(s):  
Unsteady Motion ◽  
Canadian Shield ◽  
Published Data ◽  
Flood Basalts ◽  
Crustal Movements ◽  
Geologic Time ◽  
Dike Swarms ◽  
Convective Cells

A review of published data on flood basalts and diabase dike swarms suggests that they are related in origin, typically being developed in zones of crustal tension induced by sub-crustal flow. Perhaps, therefore, these basaltic effusions may be used to map convective cells in the mantle for various periods during geologic time. The inferred pattern of sub-crustal movements, particularly for the southern continents, is seen to be complicated, both temporarily and spatially, and is strongly suggestive of unsteady motion. Dikes of the Canadian Shield permit inferences about the site of convective cells back to 2150 million years.

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