scholarly journals Formation of the Neoarchean Bad Vermilion Lake Anorthosite Complex and spatially associated granitic rocks at a convergent plate margin, Superior Province, Western Ontario, Canada

2016 ◽  
Vol 33 ◽  
pp. 134-159 ◽  
Author(s):  
Shuda Zhou ◽  
Ali Polat ◽  
Fred J. Longstaffe ◽  
Kunguang Yang ◽  
Brian J. Fryer ◽  
...  
2016 ◽  
Vol 38 ◽  
pp. 171-182 ◽  
Author(s):  
Xinchang Zhang ◽  
Peter A. Cawood ◽  
Chi-Yue Huang ◽  
Yuejun Wang ◽  
Yi Yan ◽  
...  

2010 ◽  
Vol 103 (3-4) ◽  
pp. 81-98 ◽  
Author(s):  
Marco Beltrando ◽  
Gordon S. Lister ◽  
Gideon Rosenbaum ◽  
Simon Richards ◽  
Marnie A. Forster

1965 ◽  
Vol 2 (5) ◽  
pp. 418-424 ◽  
Author(s):  
F. S. Grant ◽  
W. H. Gross ◽  
M. A. Chinnery

The Red Lake greenstone belt is Archaean in age (older than 2.5 billion years) and is located in the Superior province of the Canadian Precambrian Shield. It is a fairly typical greenstone belt, being composed of a complex assemblage of lavas, sediments, and intrusives. The belt is completely surrounded, and therefore is isolated from other greenstone belts, by granitic batholiths and acid paragneiss. Generally speaking, greenstones are more dense than the surrounding granitic rocks and they therefore give positive gravity effects, the amplitudes of which give some indication of their shape and overall thickness.At Red Lake, the greenstone belt is approximately 35 mi long by 18 mi wide. Gravity readings taken across the width of the belt indicate that the greenstones taper sharply in depth to a maximum thickness of approximately 25 000 ft. These results appear to confirm, as most geologists feel intuitively, that greenstone belts are basin-shaped and are underlain by granitic batholiths and gneiss.


2015 ◽  
Vol 57 (5-8) ◽  
pp. v-ix ◽  
Author(s):  
John Wakabayashi ◽  
Tatsuki Tsujimori ◽  
Yujiro Ogawa ◽  
John Shervais

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