Geology of the Heart Peaks volcanic centre, northwestern British Columbia

1978 ◽  
Author(s):  
J J Casey ◽  
C M Scarfe
Keyword(s):  
British Columbia ◽  
Volcanic Centre

Mid-Tertiary volcanic rocks of the Cascade Mountains, southwestern British Columbia, ages and correlations

1981 ◽  
Vol 18 (3) ◽  
pp. 662-664 ◽  
Author(s):  
W. H. Mathews ◽  
R. G. Berman ◽  
J. E. Harakal
Keyword(s):  
British Columbia ◽  
Late Miocene ◽  
Volcanic Rocks ◽  
Early Miocene ◽  
Chemical Data ◽  
Volcanic Centre ◽  
Calc Alkaline ◽  
Cascade Mountains

Potassium–argon dates and chemical data have been obtained from three mid-Tertiary volcanic centres in the Hope area of the Cascade Mountains, southwestern British Columbia. Two of these, the Coquihalla volcanic centre and the Podunk Creek body, prove to be of early Miocene age (ca. 22 Ma), whereas the Skagit Formation is mid- to late Miocene (ca. 12.5 Ma). All three bodies are calc-alkaline.

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