In 1985, Chamberlain and Lambert published a paper that defined a new terrane in the Canadian Cordillera (“Cordilleria”), which they contended had been displaced from the latitude of present-day Baja California. Large-scale displacement of Cordilleran suspect terranes had been postulated for some time (e.g., Monger and Irving 1980), but their hypothesis included rocks that many Cordilleran geologists had long considered as part of western Canada. What does this have to do with the Alberta Basement Transect of Lithoprobe? As a test of this model, I proposed to examine the detrital zircon geochronology of metasedimentary rocks of the Windermere Supergroup on...

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