scholarly journals Geology of the Precambrian rocks of the Keystone pegmatite district, southern Black Hills, South Dakota

1957 ◽  
Author(s):  
James Jennings Norton
1986 ◽  
Vol 50 (12) ◽  
pp. 2833-2846 ◽  
Author(s):  
Richard J. Walker ◽  
G.N. Hanson ◽  
J.J. Papike ◽  
J.R. O'Neil

2000 ◽  
Author(s):  
Daniel G. Driscoll ◽  
Wendell L. Bradford ◽  
Michael J. Moran

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