STABLE ISOTOPE EVIDENCE FOR A COMPLEX FLUID EVOLUTION OF THE NORTHWESTERN BRITISH COLUMBIA COAST RANGES RELATED TO TERRANE ACCRETION

2016 ◽  
Author(s):  
Jasmine A. Moertle ◽  
◽  
Gregory J. Holk
Keyword(s):  
British Columbia ◽  
Stable Isotope ◽  
Fluid Evolution ◽  
Isotope Evidence ◽  
Complex Fluid ◽  
Coast Ranges ◽  
Terrane Accretion

scholarly journals Stable isotope evidence for crustal recycling as recorded by superdeep diamonds

2015 ◽  
Vol 432 ◽  
pp. 374-380 ◽  
Author(s):  
A.D. Burnham ◽  
A.R. Thomson ◽  
G.P. Bulanova ◽  
S.C. Kohn ◽  
C.B. Smith ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Crustal Recycling ◽  
Isotope Evidence

The Lower Jurassic phosphorites of southeastern British Columbia and terrane accretion to western North America

1989 ◽  
Vol 26 (8) ◽  
pp. 1612-1616 ◽  
Author(s):  
T. P. Poulton ◽  
J. D. Aitken
Keyword(s):  
British Columbia ◽  
North America ◽  
Oceanic Crust ◽  
West Coast ◽  
Cold Water ◽  
Lower Jurassic ◽  
Depositional Model ◽  
Western North America ◽  
The West ◽  
Terrane Accretion

Sinemurian phosphorites in southeastern British Columbia and southwestern Alberta conform with the "West Coast type" phosphorite depositional model. The model indicates that they were deposited on or near the Early Jurassic western cratonic margin, next to a sea or trough from which cold water upwelled. This suggests that the allochthonous terrane Quesnellia lay well offshore in Sinemurian time. The sea separating Quesnellia from North America was partly floored by oceanic crust ("Eastern Terrane") and partly by a thick sequence of rifted, continental terrace wedge rocks comprising the Purcell Supergroup and overlying Paleozoic sequence. This sequence must have been depressed sufficiently that access of upwelling deep currents to the phosphorite depositional area was not impeded.

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